HVAC (45)

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Gas Furnace in an Attic: To Replace or Not

I have a client with an open combustion gas furnace in their attic. They recently had the attic spray foamed at the roof and end walls (enc…

Started by Patrick Michaelyan

12 May 10, 2012
Reply by Bruce Navin

Section 403.2.2 of the 2009 IECC

We've received a lot of calls of (panicked) HVAC contractors on this new code requiring duct leakage testing. Can anyone shed some light on…

Started by Tracy & Matt

11 Mar 22, 2012
Reply by Bob Blanchette

Adding return air from a heated basement in a high radon area

When building my house in CT, return air ducts are not put into basements because of radon, at least along the coast where radon levels are…

Started by Gary Baggett

3 Feb 29, 2012
Reply by Gary Baggett

Hang-ups to utilizing Manual J,D & S

I'm looking for some insight into why HVAC contractors don't use the ACCA process for sizing and selecting HVAC and Distribution systems. I…

Started by Adam Flowers

42 Feb 26, 2012
Reply by tedkidd

What is the best propane direct vent wall furnace available?

We are getting ready to do a major overhaul to about half of our house.  We currently heat with an old wood furnace tied to an oil furnace…

Started by Al Maloney

5 Feb 23, 2012
Reply by Paul Lasicki

Resnet and NATE and BPI

Resnet and NATE are joining forces to Come up with yet another "Certification" a WHOLE House Specialist. Don't get me wrong, It is a very g…

Started by randy tolowski

13 Feb 9, 2012
Reply by John Webb

Are Zoned Heating/Cooling Systems a Good Idea or a Bad Idea?

For starters, I live in Atlanta, Ga and I am not an HVAC pro so this is a serious question that I would like answered for one of my clients…

Started by Jon LaMonte

23 Jan 17, 2012
Reply by George W. Reynolds

AHR show in Chicago

If anyone is interested in attending the show on January 23,24,26, at Mccormick place go to the AHR website (HVACR) and register for free a…

Started by randy tolowski

0 Jan 15, 2012

Dense pack cellulose in rafters

Just looking for thoughts about sealing an attic that has HVAC equipment in it by using a netting product and dense packing cellulose in th…

Started by Brad Brinke

19 Dec 22, 2011
Reply by Joseph Miuccio

Needed: Tips and tricks for duct testing

  I am building a new page on our website www.retrotec.com, to help those looking for information on duct testing and adhering to duct test…

Started by Silvie Votrubova

12 Nov 3, 2011
Reply by Andre D.

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Bonus room attic walls heat load

Hi Everyone...First of all I am 59yr old retired Federal employee. I took HVAC in a trade school 30…See More
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Multifamily Building Energy Innovation- TrueFlow Capture Box

Video explaining the new tool to help reduce the energy costs of effective ventilation in multifamily buildings.
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Utility of a Hardwood Staircase

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Oil Fired Boiler Being Used as the Heating Source in Two Air Handlers of a Historic Home

I'm not sure this makes any difference, but I've only run into a system like this here, where I…See More
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