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List of Simple Questions 4

On the List of Simple Questions page and on the others alike (see links to them below), you can find answers to all spectrums of issues this website is dedicated for!
If your search engine sent you to this page that means, that a similar question was asked before and you will be able to find the an answer you are looking for.
Some of the questions are simple enough and you can find answers right here on this page.
The others are more complicated and I provided links to the pages on my site where you can find free information.
For the third part of the questions that are not that simple, as you may think, I provided links to the paid pages or books on my site.

So, please scroll down, find your question and good luck!

2 bath fans vented through existing roof vent.
Learn how to do it in Chapter #25 (below) of my DIGuide book.

25. Uncommon Cases of Bath Fan Exhausts – the chapter gives a description of the five uncommon cases
of the bath fan exhausts.
The chapter has 22 pictures; 12 pages*. $3.41 (Instant Access).

Are you looking for a job? Not yet? When you will, they are going to ask you about your experience and it should be at least from three to five years or even more then that! However, under a good supervision one year is just enough to put your hands on it!!
So, why do they need more, are they crazy? No, they are not! They just need to know that you are able to do your job without asking too many questions!
My entire book is designed to help you out in this regard, but this chapter in particular! Once you have read this chapter, undoubtedly, you can claim that you have a knowledge equal of at least of ten years of experience!

On 05/18/2013 text of this chapter was significantly modified and improved. Examples of Pulte Homes ductwork installation were also inserted in this chapter.

Air not reaching back room.
Learn how to fix it on this page (below).

Why is Cold Air not Reaching the Farthest Room?

This issue may occur with your supply and with your return ductwork.
For supply, there could be six reasons for that:

The matter of fact is that the last heat is normally getting more air

Bath fan vented through the soffit.
Learn how to do it in Chapter #23 (below) of my DIGuide book.

23. Bath Fan Exhaust* the first part of the chapter gives general information about bath fans, after that it presents
five different cases of the bath fan exhausts runs to the wall and to the soffit cap.
The chapter has 8 pictures; 6 pages*. $2.37 (Instant Access).

*Article: Bathroom Ventilation Ducts and Fans.

Bath Room Exhaust fans, pdf file.

On 06/09/2013 text of this chapter was significantly modified and improved.

Black insulation not covering air condition hose.
Name of this black insulation is armaflex; you can buy it at any HVAC supply house.

Can a builder be sued over ductwork condensation?
In America? No questions asked!

Can air conditioner vents under cabinets cause your hardwood floors to buckle?
If these vents aren't extended to the openings in the cabinet's bases then I think they can.

Can anything be done to remedy lack of cold air return?
Just install an additional cold air return; read more and step-by-step tutorial on this page (below).

Closing Cold Air Grills

As everybody knows the cold air sinks down, but the warm air rises up. For example in the summertime, when warm air fills your house you have to run it through A/C coil to cool it down. As your A/C unit picks up warm air from the ceiling, it will be replaced by cool air coming from the supply vents...

Can I have a return vent in my basement to my furnace?
Yes.

Can I install a duct booster fan in my heat pump?
Absolutely! And you can buy it on this page, on the right.

Can I install booster fans inside my furnace air ducts?
Yes, you can!

Can I install my air conditioning ducts in the attic?
Yes, you can, but find a better solution.

Can I replace a furnace door switch myself?
Yes you can. Just buy one on the right.

Can you cover fresh air vent for noise reduction in house?
There are no direct correlation between fresh air intake and noise in house. However if you don't have enough cold air returns fresh air intake may help a little.

Can you seal off a return heating register?
You can seal off whatever you like even cold air supply grill...

Can you vent a gas furnace with a draft inducer blower through a wall in the crawlspace?
Technically, you can, but it would be against a manufacturer's instruction and code. However, they allow you to run an exhaust from a garage heater or from all kinds of suspended heaters in the commercial applications...

China heat pump price.
Learn about heat pump prices on this page.

Condensing unit is making a buzzing sound even when off.
Even if it's off you have low voltage wires to the unit and a relay that is always energized by them.

Do and don’ts of furnace ducting installation.
I have entire book (below) dedicated to this issue.

Ductwork Installation Guide

Introducing a completely current and innovative way to learn the basics of Ductwork and Furnace Installation!...

Do Honeywell humidifiers waste water?
Yes, learn how to reduce water consumption on this page (below).

How to Double Level of Relative Humidity in Your House

Low humidity level is most likely the cause of some pretty significant health issues. The optimal relative humidity level for human comfort and health is anywhere from 30% to 50%.
Here are some of the results of low humidity:

Do I need fresh air for wood stove?
If you are asking about combustion air then the answer is yes.

Do the modern clothes dryers leave clothes damp?
It seems to me that your exhaust pipe is clogged with the lint, find a solution on this page.

Do you insulate round ductwork?
Yep.

Do you put cold air returns in a kitchen?
No cold air returns in kitchens and bathrooms allowed by code.

Does a furnace plenum need to be insulated?
In a conditioned space you can skip on it.

Does air return run down your wall or up?
In the most cases it depends on location of your furnace/air handler.

Does furnace fresh air intake lower heating cost?
Maybe just a bit, but learn how to make it work for you on this page (below).

Fresh Air Intake Installation

This chapter from the "Energy Saving Edition" book gives a detailed description of the Fresh Air Intake installation, which according to code must be an important element of your HVAC ductwork system. In the chapter you can find pictures of all necessary tools, materials and pictures of the Fresh Air Intake installation. There are 20 pictures. Installation is divided into six steps, which represent the entire project in the making.

For each season which hvac return register do you open and close?
This question only seems simple, please read on this page (below).

Closing Supply and Return Registers Search Results Page

Every day more and more people are visiting this page...

Many of them want to save some money on their heating and cooling bills, but do not know how. They have reasonable thoughts that if they would close a few heats and cold air returns they will save some money on their utility bills!???

So here is a question - Are they right or wrong on this issue? So let’s take a close look at it...

How do I hook ductwork to existing ductwork?
It is not really a simple question; get more info on this page (below).

Tap Takeoff into Duct

In this chapter, I will explain how to tap a Take-off into existing duct and how to do a basement heat run. In order to cut a take-off in you have to:

Does every heat vent need a cold air return?
Well, in the perfectly designed system, it does, but nothing is perfect.

How far apart do you place air conditioning diffusers?
Normally – according to the blueprint. But they should cover entire room.
 

How far should be cold air return from furnace?
If this is basement cold air return - the 10'.

How long can flexible duct be in attic?
Should be no longer than 25'. And you can buy it on the right.

How long should ductwork runs be before extending main duct?
There are no regulation for this matter. You can set a heat run right on the plenum.

How much air for microwave vent?
As much as microwave can produce…

How much drop does a condensate drain need on an air conditioner?
At least 1/8" per foot.

How much fresh combustion air required for gas furnace?
There is a method on how to determine amount like this, just read on this page.

How often should ac ductwork be replaced?
If it is in a good shape, then never.

How to attach duct to microwave?
It is not difficult at all! The re is step-by-step tutorial on this page (below).

Kitchen Remodeling Edition

When it comes to the ductwork, kitchen remodeling requires resolving some of the most important issues, which could...

How to attach plenum to furnace?
You should attach plenum to furnace with several ½" zip screws.

How to cap or plug unneeded heating duct vents in ceiling?
Disconnect it from hanger, put a 10 x 4 end cap on, push it up and fix the drywall.

How to connect new ductwork to existing basement ductwork?
This is a very simple DIY project, but at first, buy my Ductwork Installation Guide book.

How to cut plenum down?
Learn how to do it in Chapter #38 (below) of my DIGuide book.

Plenum Installation

A supply air plenum is a sheet metal box that attaches to the outlet of a furnace, air handler, or AC coil and is used as a central manifold for other ductwork or take-offs to connect to...

How to cut top of ductwork?
You can cut the top of ductwork with red or green aviation snips. Do not have one? Buy it on the right.

How to duct microwave exhaust to outside?
Find a solution on this page (above).

How to effectively cover a cold air return and not compromise the efficiency of your furnace?
This is a good question,  find a solution on this page (below)!

Closing Cold Air Grills

As everybody knows the cold air sinks down, but the warm air rises up. For example in the summertime, when warm air fills your house you have to run it through A/C coil to cool it down. As your A/C unit picks up warm air from the ceiling, it will be replaced by cool air coming from the supply vents...

How to eliminate sound transfer in cold air return?
In order to achieve that you have to use an acoustic duct liner, but you cannot install it on your existing system, because it should be glued to the ductwork inside.

How to get furnace ductwork to not bang and make noise?
Find a solution on this page (below).

Banging and Oil Canning Noise

The banging noise that you hear is the expanding and contracting of the ductwork when the system turns on and off. This could be caused by a few different reasons. It could be:

How to hook up return duct to main duct?
Well, it is not really simple question, but you can learn how to do that in the Chapters #34 - #36 of my Ductwork Installation Guide.

34. Sheeting (Panning)* – the chapter covers almost all possible cases of the joist's panning  with a wide variety of uncommon cases, presents how to deal with penetration of the wires, copper and PVC pipes.
The chapter has 34 pictures; 21 pages*. $2.50 (Instant Access).
Summary Report for:
47-2211.00 - Sheet Metal Workers

On 07/05/2013 text of this chapter was significantly modified and improved.  

35. Variants Installation of Sheeting from Cold Air Duct – the chapter covers the rest of the panning
cases. The chapter has 8 pictures; 4 pages*. $2.00 (Instant Access).

On 08/06/2011 text of this chapter was significantly modified and improved.

36. Double Sheeting – the chapter describes a double sheeting installation and explains when it should be in use.




The chapter has 3 picture; 2 pages*. $2.00 (Instant Access).

On 08/07/2011 text of this chapter was significantly modified and improved. 

How to install a toe kick heat register?
You can get step-by-step tutorial in a Chapter #1 of the Kitchen Remodeling Edition e-book.

How to install additional take off to heating duct?
I have a paid page that answers to this question.

How to install an hvac sheet metal register?
You can find step-by-step explanations in Chapter #52 on this page.

How to install ceiling register?
If for the finished basement, you can find step-by-step explanations in Chapter #6 on this page.

How to install cold air return to furnace room?
No cold air returns from mechanical rooms allowed by code.

How to install commercial duct?
You can find the answer on this page.

Light Commercial

For years I was thinking about writing a Light Commercial E-book and this idea never came to fruition...

How to install crawl space ductwork for a gas furnace?
Just like in a basement.

How to install ducts to plenum in home heating system?
Read Chapter #38 of my Ductwork Installation Guide book.

Plenum Installation

A supply air plenum is a sheet metal box that attaches to the outlet of a furnace, air handler, or AC coil and is used as a central manifold for other ductwork or take-offs to connect to...

How to install dampers in ductwork?
Pierce a hole in a duct with a scratch awl, by turning it back and forth make a hole larger, insert damper, put on a handle and tighten it up with the wing nut. And you can buy a scratch awl here on the right.
 

How far apart do you place air conditioning diffusers?
Normally – according to the blueprint. But they should cover entire room.
 

How far should be cold air return from furnace?
If this is basement cold air return - the 10'.

How long can flexible duct be in attic?
Should be no longer than 25'. And you can buy it on the right.

How long should ductwork runs be before extending main duct?
There are no regulation for this matter. You can set a heat run right on the plenum.

How much air for microwave vent?
As much as microwave can produce…

How much drop does a condensate drain need on an air conditioner?
At least 1/8" per foot.

How much fresh combustion air required for gas furnace?
There is a method on how to determine amount like this, just read on this page.

How often should ac ductwork be replaced?
If it is in a good shape, then never.

How to attach duct to microwave?
It is not difficult at all! The re is step-by-step tutorial on this page (below).

Kitchen Remodeling Edition

When it comes to the ductwork, kitchen remodeling requires resolving some of the most important issues, which could...

How to attach plenum to furnace?
You should attach plenum to furnace with several ½" zip screws.

How to cap or plug unneeded heating duct vents in ceiling?
Disconnect it from hanger, put a 10 x 4 end cap on, push it up and fix the drywall.

How to connect new ductwork to existing basement ductwork?
This is a very simple DIY project, but at first, buy my Ductwork Installation Guide book.

How to cut plenum down?
Learn how to do it in Chapter #38 (below) of my DIGuide book.

Plenum Installation

A supply air plenum is a sheet metal box that attaches to the outlet of a furnace, air handler, or AC coil and is used as a central manifold for other ductwork or take-offs to connect to...

How to cut top of ductwork?
You can cut the top of ductwork with red or green aviation snips. Do not have one? Buy it on the right.

How to duct microwave exhaust to outside?
Find a solution on this page (above).

How to effectively cover a cold air return and not compromise the efficiency of your furnace?
This is a good question,  find a solution on this page (below)!

Closing Cold Air Grills

As everybody knows the cold air sinks down, but the warm air rises up. For example in the summertime, when warm air fills your house you have to run it through A/C coil to cool it down. As your A/C unit picks up warm air from the ceiling, it will be replaced by cool air coming from the supply vents...

How to eliminate sound transfer in cold air return?
In order to achieve that you have to use an acoustic duct liner, but you cannot install it on your existing system, because it should be glued to the ductwork inside.

How to get furnace ductwork to not bang and make noise?
Find a solution on this page (below).

Banging and Oil Canning Noise

The banging noise that you hear is the expanding and contracting of the ductwork when the system turns on and off. This could be caused by a few different reasons. It could be:

How to hook up return duct to main duct?
Well, it is not really simple question, but you can learn how to do that in the Chapters #34 - #36 of my Ductwork Installation Guide.

34. Sheeting (Panning)* – the chapter covers almost all possible cases of the joist's panning  with a wide variety of uncommon cases, presents how to deal with penetration of the wires, copper and PVC pipes.
The chapter has 34 pictures; 21 pages*. $2.50 (Instant Access).
Summary Report for:
47-2211.00 - Sheet Metal Workers

On 07/05/2013 text of this chapter was significantly modified and improved.  

35. Variants Installation of Sheeting from Cold Air Duct – the chapter covers the rest of the panning
cases. The chapter has 8 pictures; 4 pages*. $2.00 (Instant Access).

On 08/06/2011 text of this chapter was significantly modified and improved.

36. Double Sheeting – the chapter describes a double sheeting installation and explains when it should be in use.




The chapter has 3 picture; 2 pages*. $2.00 (Instant Access).

On 08/07/2011 text of this chapter was significantly modified and improved. 

How to install a toe kick heat register?
You can get step-by-step tutorial in a Chapter #1 of the Kitchen Remodeling Edition e-book.

How to install additional take off to heating duct?
I have a paid page that answers to this question.

How to install an hvac sheet metal register?
You can find step-by-step explanations in Chapter #52 on this page.

How to install ceiling register?
If for the finished basement, you can find step-by-step explanations in Chapter #6 on this page.

How to install cold air return to furnace room?
No cold air returns from mechanical rooms allowed by code.

How to install commercial duct?
You can find the answer on this page.

Light Commercial

For years I was thinking about writing a Light Commercial E-book and this idea never came to fruition...

How to install crawl space ductwork for a gas furnace?
Just like in a basement.

How to install ducts to plenum in home heating system?
Read Chapter #38 of my Ductwork Installation Guide book.

Plenum Installation

A supply air plenum is a sheet metal box that attaches to the outlet of a furnace, air handler, or AC coil and is used as a central manifold for other ductwork or take-offs to connect to...

How to install dampers in ductwork?
Pierce a hole in a duct with a scratch awl, by turning it back and forth make a hole larger, insert damper, put on a handle and tighten it up with the wing nut. And you can buy a scratch awl here on the right.
 

How to install ductwork for bathroom fan?
You can find step-by-step explanations in the Chapter #23 on this page or below.

23. Bath Fan Exhaust* the first part of the chapter gives general information about bath fans, after that it presents
  five different cases of the bath fan exhausts runs to the wall and to the soffit cap.
The chapter has 8 pictures; 6 pages*. $2.37 (Instant Access).

*Article: Bathroom Ventilation Ducts and Fans.

Bath Room Exhaust fans, pdf file.

On 06/09/2013 text of this chapter was significantly modified and improved.

How to install rectangular duct?
You can find step-by-step explanations in the Chapter #39 on this page or below.

39. Ductwork Installation* – the chapter gives a general description of the ductwork installation.
The chapter has 4 pictures; 3 pages*. $2.00 (Instant Access).

Duct Design - PDF file

On 08/07/2011 text of this chapter was significantly modified and improved. 

How to install suspended furnace in attic?
I do not have a tutorial for the attic, but its similar installation, which is described in the Chapter #62 from my Ductwork Installation Guide book or below.

62. Uncommon Cases – the chapter presents a wide variety uncommon cases of the Rough-in, basement and others
installations, such as: pool fan installation, suspended furnace installation, etc.
CONCLUSION – the chapter wishes good luck in a new profession.

Are you looking for work? Not yet? When you will, they are going to ask you about your experience and it should be at least from three to five years or even more than that! However, under a good supervision one year is just enough to put your hands on it!!
So, why do they need more, are they crazy? No, they are not! They just need to know that you are able to do your job without asking too many questions!
My entire book is designed to help you out in this regard, but this chapter in particular! Once you have read this chapter, undoubtedly, you can claim that you have a knowledge equal at least of ten years of experience!

The chapters have 65 pictures; 26 pages*. $5.00 (Instant Access). On 06/24/2013 25 more pictures added. Examples of Pulte Homes ductwork installation were also inserted in this chapter.

How to make ducts?
First off, buy a tin shop...

How to quiet ductwork when walking on floor?
I believe you can fly! But seriously, stay on my site and read on this page for God sake.

How to run an air conditioner trunk line?
This actually is a very complicated question, but you may find answers in my Ductwork Installation Guide book.

How to size hvac condensate drain?
There are no calculations for this matter, just use ¾" PVC pipes and fittings.

How to vent our microwave hood around 2 x 4?
Cut the stud, nail two headers, run exhaust through the wall. If you run it up or down it’s not necessary to be dead on center. Get more info on this page or below.

4. MICROWAVE HOOD, JENN AIR, KITCHEN HOOD

the chapter describes all three cases of the kitchen exhausts: Kitchen Hood, Microwave Oven Hood, Jenn-Air Fan; explains the roof and wall caps installation; covers the ductwork installation. Chapter has 10 pages, 30 pictures. Price of the chapter is only $2.50 (Instant Access).

I have a 1700 sq. ft. two story house built in 1988 in the Atlanta area with central A/C. The only return is on the first floor at the bottom of the stairs. The Master bedroom is over the garage and has a vaulted ceiling. Heat gets trapped in the room during the summer as well as in the upstairs hallway that has three bedrooms and a bathroom off of it. I'm thinking of installing a 400cfm exhaust fan near the top, gable end of the master bedroom and exhaust it into the attic in order to pull out hot air.
I'm also thinking of installing 350cfm exhaust fan at the top of the staircase in the upstairs hallway and exhaust it into the attic in order to pull out hot air.

Exhausting the air from the second floor into the attic. Will just make the whole house warmer/hotter. As that air will be replaced by unconditioned out door air. That your A/C is not large enough to cool.
Either find a way to get a return up there. or get an A/C for just the second floor.

I have to put an air return vent above my bedroom door but the header is in the way.
Then do not put it there, run it through the wall or install a cold air return in the ceiling/wall.

I notice that every time the ac starts, I get a burst of warm air out of the supply grills. It goes away instantly then I begin to feel the cold air coming out of the register. Is this normal?
This is normal. The ducts are in the hot attic, the air that is just "sitting" in the ducts when the system is off will get warm. Once the system comes on and starts cooling, the warm air is blown out of the ducts and into the house.

Is a fresh air intake recommended for heat pump systems?
Yes.

Is it good to install ductwork in attic?
No, furthermore, personally I consider it as a crime!

Is it normal to have moisture on outside of plenum when air is running?
No.

Is it safe to run your central heat if the outside unit is disconnected?
If this is a furnace only, then yes, but if this is a heat pump it won’t work anyway.

Is it worth moving return registers close to ceiling?
Absolutely!

Is there a good web site that explains how to install ductwork?
Wake up dude you are already there!

Is there a guide for pop noise removal?
Yes, you can find it on this page and it is working already for five years on my site flawlessly!

Ticking Noise Elimination

If you did not finish your basement off yet then it would be relatively simple to fix. Also, if in your basement you have a drop ceiling then consider yourself as a lucky one, the most difficult task would be if your ductwork is covered with the drywall!..

My house vent duct sweat and rotted my floor!
Really? Then stay on this site and go to this page.

Notes on hvac installation.
There are hundreds of them in my DIGuide e-book.

Our furnace is 20 years old and needs replacing. The problem is our house is just over 4200SF and the builder did not 2 zone the air and heat we have a 150,000 BTU furnace and so far the 2 guys that came over for an estimate says they do not make a high efficiency furnace in that size. One guy said he would try connecting 2 smaller units in parallel. The other guy wants to redo the duct work and 2 zone it, (way too much $$$, we will never recoup that cost). My question is what can I do?
A 150,000 BTU input 80% efficient furnace, is 120,000 BTUs output.
A 120,000 BTU input 95% efficient furnace is 114,000 BTUs output. Doubt you will miss 6,000 BTUs.
A load calc will probably show that a 120,000 95% input furnace is more then enough heat for your house. You can do your own load calc and find out what size you really need.
Two furnaces can be twinned to get the size you need, if it would turn out that you need the full 120,000 BTU output. The new furnaces will have instructions how to twin them. Done right, you will end up with a nice two stage heating system and probably save a lot of money on your heating bill.

Should an air conditioner condensate drain into a washing machine trap?
Yes, you can use it if you are out of the other options.

Should my cold air return duct in the attic be sealed tight?
Absolutely!

Should you insulate ductwork in walls?
If these are the exterior walls then yes.

 

How to install ductwork for bathroom fan?
You can find step-by-step explanations in the Chapter #23 on this page or below.

23. Bath Fan Exhaust* the first part of the chapter gives general information about bath fans, after that it presents
  five different cases of the bath fan exhausts runs to the wall and to the soffit cap.
The chapter has 8 pictures; 6 pages*. $2.37 (Instant Access).

*Article: Bathroom Ventilation Ducts and Fans.

Bath Room Exhaust fans, pdf file.

On 06/09/2013 text of this chapter was significantly modified and improved.

How to install rectangular duct?
You can find step-by-step explanations in the Chapter #39 on this page or below.

39. Ductwork Installation* – the chapter gives a general description of the ductwork installation.
The chapter has 4 pictures; 3 pages*. $2.00 (Instant Access).

Duct Design - PDF file

On 08/07/2011 text of this chapter was significantly modified and improved. 

How to install suspended furnace in attic?
I do not have a tutorial for the attic, but its similar installation, which is described in the Chapter #62 from my Ductwork Installation Guide book or below.

62. Uncommon Cases – the chapter presents a wide variety uncommon cases of the Rough-in, basement and others
installations, such as: pool fan installation, suspended furnace installation, etc.
CONCLUSION – the chapter wishes good luck in a new profession.

Are you looking for work? Not yet? When you will, they are going to ask you about your experience and it should be at least from three to five years or even more than that! However, under a good supervision one year is just enough to put your hands on it!!
So, why do they need more, are they crazy? No, they are not! They just need to know that you are able to do your job without asking too many questions!
My entire book is designed to help you out in this regard, but this chapter in particular! Once you have read this chapter, undoubtedly, you can claim that you have a knowledge equal at least of ten years of experience!

The chapters have 65 pictures; 26 pages*. $5.00 (Instant Access). On 06/24/2013 25 more pictures added. Examples of Pulte Homes ductwork installation were also inserted in this chapter.

How to make ducts?
First off, buy a tin shop...

How to quiet ductwork when walking on floor?
I believe you can fly! But seriously, stay on my site and read on this page for God sake.

How to run an air conditioner trunk line?
This actually is a very complicated question, but you may find answers in my Ductwork Installation Guide book.

How to size hvac condensate drain?
There are no calculations for this matter, just use ¾" PVC pipes and fittings.

How to vent our microwave hood around 2 x 4?
Cut the stud, nail two headers, run exhaust through the wall. If you run it up or down it’s not necessary to be dead on center. Get more info on this page or below.

4. MICROWAVE HOOD, JENN AIR, KITCHEN HOOD

the chapter describes all three cases of the kitchen exhausts: Kitchen Hood, Microwave Oven Hood, Jenn-Air Fan; explains the roof and wall caps installation; covers the ductwork installation. Chapter has 10 pages, 30 pictures. Price of the chapter is only $2.50 (Instant Access).

I have a 1700 sq. ft. two story house built in 1988 in the Atlanta area with central A/C. The only return is on the first floor at the bottom of the stairs. The Master bedroom is over the garage and has a vaulted ceiling. Heat gets trapped in the room during the summer as well as in the upstairs hallway that has three bedrooms and a bathroom off of it. I'm thinking of installing a 400cfm exhaust fan near the top, gable end of the master bedroom and exhaust it into the attic in order to pull out hot air.
I'm also thinking of installing 350cfm exhaust fan at the top of the staircase in the upstairs hallway and exhaust it into the attic in order to pull out hot air.

Exhausting the air from the second floor into the attic. Will just make the whole house warmer/hotter. As that air will be replaced by unconditioned out door air. That your A/C is not large enough to cool.
Either find a way to get a return up there. or get an A/C for just the second floor.

I have to put an air return vent above my bedroom door but the header is in the way.
Then do not put it there, run it through the wall or install a cold air return in the ceiling/wall.

I notice that every time the ac starts, I get a burst of warm air out of the supply grills. It goes away instantly then I begin to feel the cold air coming out of the register. Is this normal?
This is normal. The ducts are in the hot attic, the air that is just "sitting" in the ducts when the system is off will get warm. Once the system comes on and starts cooling, the warm air is blown out of the ducts and into the house.

Is a fresh air intake recommended for heat pump systems?
Yes.

Is it good to install ductwork in attic?
No, furthermore, personally I consider it as a crime!

Is it normal to have moisture on outside of plenum when air is running?
No.

Is it safe to run your central heat if the outside unit is disconnected?
If this is a furnace only, then yes, but if this is a heat pump it won’t work anyway.

Is it worth moving return registers close to ceiling?
Absolutely!

Is there a good web site that explains how to install ductwork?
Wake up dude you are already there!

Is there a guide for pop noise removal?
Yes, you can find it on this page and it is working already for five years on my site flawlessly!

Ticking Noise Elimination

If you did not finish your basement off yet then it would be relatively simple to fix. Also, if in your basement you have a drop ceiling then consider yourself as a lucky one, the most difficult task would be if your ductwork is covered with the drywall!..

My house vent duct sweat and rotted my floor!
Really? Then stay on this site and go to this page.

Notes on hvac installation.
There are hundreds of them in my DIGuide e-book.

Our furnace is 20 years old and needs replacing. The problem is our house is just over 4200SF and the builder did not 2 zone the air and heat we have a 150,000 BTU furnace and so far the 2 guys that came over for an estimate says they do not make a high efficiency furnace in that size. One guy said he would try connecting 2 smaller units in parallel. The other guy wants to redo the duct work and 2 zone it, (way too much $$$, we will never recoup that cost). My question is what can I do?
A 150,000 BTU input 80% efficient furnace, is 120,000 BTUs output.
A 120,000 BTU input 95% efficient furnace is 114,000 BTUs output. Doubt you will miss 6,000 BTUs.
A load calc will probably show that a 120,000 95% input furnace is more then enough heat for your house. You can do your own load calc and find out what size you really need.
Two furnaces can be twinned to get the size you need, if it would turn out that you need the full 120,000 BTU output. The new furnaces will have instructions how to twin them. Done right, you will end up with a nice two stage heating system and probably save a lot of money on your heating bill.

Should an air conditioner condensate drain into a washing machine trap?
Yes, you can use it if you are out of the other options.

Should my cold air return duct in the attic be sealed tight?
Absolutely!

Should you insulate ductwork in walls?
If these are the exterior walls then yes.

 

Should you put a filter in the return air grill?
If it's designed for a filter then the answer is yes.

Tools for cutting sheet metal.
See them all on this pageor below.

Tools in My Work Apron

Have you ever wondered what kinds of tool an ordinary residential ductwork installer carrying in his pouch?
On this and on the following pages you can see a complete set of all necessary tools that I’m usually carrying in my pouch, keeping in my toolbox or having in my van...

Types for heat duct rigid or flex.
Rigid is always better.

Video installing duct work around perimeter of unfinished basement.
Learn how to do it in Chapter #55 of my DIGuide book.

55. Installation of Heating System in Big Houses* – the chapter presents all aspects ductwork and
furnace installation in the houses (larger then 5000 square feet). The chapter describes furnace and ductwork attic installation, explains how to run ductwork from the basement to the attic and so on.
The chapter has 74 pictures; 26 pages*. $3.41 (Instant Access).

*Link to
Top of the Line House (Installation in Pictures).

05/25/2013 five more pictures were added.

What are recommended humidity settings in a cold climate?
40% - 50% RH.

What causes return air vent to whistle?
Most likely lack of cold air returns.

What do I need to make my own ductwork?
As I've said above, buy a tin shop or you can learn a very simple technique on this page.

What do you do when your old cold air returns are dented?
Well, I have a quiz dedicated to this issue. Find an instant answer to this question on this page.

What do you have to do to get your ductwork moved from under your house to above it?
Well, you must gut your house.

What gauge duct for dryer venting?
30 gauges is enough.

What is back drafting on a gas furnace?
It’s when furnace or/and water heater fumes are drawn back into the basement.

What is circumference of 4" ductwork?
Are you kidding? I guess this is back to school time!

What is a low loss fitting used with AC charging hose. How does it work?
To prevent refrigerant from leaking when disconnecting from the service valves.

What is purpose of the T line behind the condensation trap?
It is designed for the cleaning purposes.

What is the best way to run your hvac ducting in the attic?
The best way is not to run it at all, otherwise look around I have quite a few paid and free pages dedicated to this issue.

What's the easiest way to go through my crawlspace looking for leaks to tape off in my ductwork?
Cover up ½ of the supplies and turn the fan on. Should be able to feel where the air is blowing out at then.

What is metering device and what does it do?
The metering device breaks down the pressure on the refrigerant, from high pressure liquid going into the evaporator to a much lower pressure saturated (both liquid and vapor) refrigerant on the other side of the metering device. As the refrigerant travels throughout the evaporator it's slowly all changing state to pure vapor as it picks up (extracts) heat from the air travelling over the evaporator coil, as well as pulls moisture from the air during this procedure. By the time the refrigerant leaves the evaporator it should be all vapor, if not, there is something wrong with the system.

What kind of ductwork do you use for kitchen exhaust systems?
Just regular sheet metal ducts.

What material do I need to cover a cold air return?
Sheet metal, Thermo Pan, drywall.

What tool do I use to cut into the top of my supply plenum?
It is not allowed by code to cut into the top of the supply plenum.

What type of ductwork do I need to run return fresh air supply to furnace?
You can use insulated flex.

What type worker extends ductwork from dryer to outside vent?
C'mon, even you can do it, just read Chapter #26 from my Ductwork Installation Guide book.

26. Dryer Vent*# – the chapter covers all possible cases of the drier vent installation inside a house and explains how

to rough-in a driecap. Also the chapter has an article from the code in it.

The chapter has 25 pictures; 12 pages*. $2.50. (Instant Access).

*Article: The Facts About Clothes Dryer Exhaust Systems

#From code: 504.3 Clothes Dryers.

On 08/24/2013 text of this chapter was significantly modified and improved. Examples of Pulte Homes ductwork installation were also inserted in this chapter.

What would happen if you install microwave without the vent?
Really not much, you just cannot get rid of the smell completely and have to change filters more often.

Which duct installation is proper? Both supply and return registers on inside walls or outside walls, supply register on outside and return register on inside, supply register on inside and return register on outside.
The second one. For more info visit this page and download a pdf file, it's free of charge.

Who can install kitchen microwave ductwork?
You!

Who can perform heat loss gain calculations?
Even you can do it, just purchase calculation software online.

Why my dryer exhaust constantly clogs with moist lint?
Because you are not using a dryer exhaust booster! Buy it on the right on this page.

Why you should not add fresh air intake to home furnace?
This is an interesting question. But really, why?


If you are unable to find an answer to your question, try links to the other pages of this kind below.
Please follow the links provided on these pages, they would lead you to the free or paid pages on my site or even to the other sites where you can get your question answered!
If you are still cannot find an answer to your simple question, just ask it on this
page.
If your question requires more than simple "Yes" or "No" or one sentence to answer, please ask your question on this
page
. Price for the question is only $1.34 and if I have already a paid page with the answer to your question, you will pay nothing. If that page is pricier that $1.34 you will pay for the page, but I will refund your money back to your PayPal account.
If I do not have an answer to your specific question, I will refund your money as well. 


1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |17 | 18 | 19 |

 

Should you put a filter in the return air grill?
If it's designed for a filter then the answer is yes.

Tools for cutting sheet metal.
See them all on this pageor below.

Tools in My Work Apron

Have you ever wondered what kinds of tool an ordinary residential ductwork installer carrying in his pouch?
On this and on the following pages you can see a complete set of all necessary tools that I’m usually carrying in my pouch, keeping in my toolbox or having in my van...

Types for heat duct rigid or flex.
Rigid is always better.

Video installing duct work around perimeter of unfinished basement.
Learn how to do it in Chapter #55 of my DIGuide book.

55. Installation of Heating System in Big Houses* – the chapter presents all aspects ductwork and
furnace installation in the houses (larger then 5000 square feet). The chapter describes furnace and ductwork attic installation, explains how to run ductwork from the basement to the attic and so on.
The chapter has 74 pictures; 26 pages*. $3.41 (Instant Access).

*Link to
Top of the Line House (Installation in Pictures).

05/25/2013 five more pictures were added.

What are recommended humidity settings in a cold climate?
40% - 50% RH.

What causes return air vent to whistle?
Most likely lack of cold air returns.

What do I need to make my own ductwork?
As I've said above, buy a tin shop or you can learn a very simple technique on this page.

What do you do when your old cold air returns are dented?
Well, I have a quiz dedicated to this issue. Find an instant answer to this question on this page.

What do you have to do to get your ductwork moved from under your house to above it?
Well, you must gut your house.

What gauge duct for dryer venting?
30 gauges is enough.

What is back drafting on a gas furnace?
It’s when furnace or/and water heater fumes are drawn back into the basement.

What is circumference of 4" ductwork?
Are you kidding? I guess this is back to school time!

What is a low loss fitting used with AC charging hose. How does it work?
To prevent refrigerant from leaking when disconnecting from the service valves.

What is purpose of the T line behind the condensation trap?
It is designed for the cleaning purposes.

What is the best way to run your hvac ducting in the attic?
The best way is not to run it at all, otherwise look around I have quite a few paid and free pages dedicated to this issue.

What's the easiest way to go through my crawlspace looking for leaks to tape off in my ductwork?
Cover up ½ of the supplies and turn the fan on. Should be able to feel where the air is blowing out at then.

What is metering device and what does it do?
The metering device breaks down the pressure on the refrigerant, from high pressure liquid going into the evaporator to a much lower pressure saturated (both liquid and vapor) refrigerant on the other side of the metering device. As the refrigerant travels throughout the evaporator it's slowly all changing state to pure vapor as it picks up (extracts) heat from the air travelling over the evaporator coil, as well as pulls moisture from the air during this procedure. By the time the refrigerant leaves the evaporator it should be all vapor, if not, there is something wrong with the system.

What kind of ductwork do you use for kitchen exhaust systems?
Just regular sheet metal ducts.

What material do I need to cover a cold air return?
Sheet metal, Thermo Pan, drywall.

What tool do I use to cut into the top of my supply plenum?
It is not allowed by code to cut into the top of the supply plenum.

What type of ductwork do I need to run return fresh air supply to furnace?
You can use insulated flex.

What type worker extends ductwork from dryer to outside vent?
C'mon, even you can do it, just read Chapter #26 from my Ductwork Installation Guide book.

26. Dryer Vent*# – the chapter covers all possible cases of the drier vent installation inside a house and explains how

to rough-in a driecap. Also the chapter has an article from the code in it.

The chapter has 25 pictures; 12 pages*. $2.50. (Instant Access).

*Article: The Facts About Clothes Dryer Exhaust Systems

#From code: 504.3 Clothes Dryers.

On 08/24/2013 text of this chapter was significantly modified and improved. Examples of Pulte Homes ductwork installation were also inserted in this chapter.

What would happen if you install microwave without the vent?
Really not much, you just cannot get rid of the smell completely and have to change filters more often.

Which duct installation is proper? Both supply and return registers on inside walls or outside walls, supply register on outside and return register on inside, supply register on inside and return register on outside.
The second one. For more info visit this page and download a pdf file, it's free of charge.

Who can install kitchen microwave ductwork?
You!

Who can perform heat loss gain calculations?
Even you can do it, just purchase calculation software online.

Why my dryer exhaust constantly clogs with moist lint?
Because you are not using a dryer exhaust booster! Buy it on the right on this page.

Why you should not add fresh air intake to home furnace?
This is an interesting question. But really, why?


If you are unable to find an answer to your question, try links to the other pages of this kind below.
Please follow the links provided on these pages, they would lead you to the free or paid pages on my site or even to the other sites where you can get your question answered!
If you are still cannot find an answer to your simple question, just ask it on this
page.
If your question requires more than simple "Yes" or "No" or one sentence to answer, please ask your question on this
page
. Price for the question is only $1.34 and if I have already a paid page with the answer to your question, you will pay nothing. If that page is pricier that $1.34 you will pay for the page, but I will refund your money back to your PayPal account.
If I do not have an answer to your specific question, I will refund your money as well. 


1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |17 | 18 | 19 |

 

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