HVAC (45)

Discussions Replies Latest Activity

Geothermal Indoor Air Quality

I'd like the experts here to weigh in on this.  I've been hearing a lot of claims about the better IAQ you get with geothermal systems.  In…

Started by Trish Holder

2 Dec 27, 2013
Reply by Eric Kjelshus

Student needs help for HVAC research project

Hi, I am a Building Science student, working on a residential HVAC research project. Specifically, I am comparing the following types of sy…

Started by Lena Burkett

7 Nov 22, 2013
Reply by prisco tammaro

Underground ductwork

Do you think the air loss will be minimal in the following situation Underground duct with some separation at the joints, trenched and enc…

Started by Kevin

19 Oct 8, 2013
Reply by Bob Blanchette

Cooling His Room With a Big Refrigerator - What is Wrong with That?

       It was very hot this July 4th for Peter when his room AC broke down.  Nothing taste better than a cold beer from the refrigerator.  …

Started by Perry Ning

5 Sep 14, 2013
Reply by Perry Ning

Super Seal and Dry R

Hi, I installed my York system 2 years ago July 2011 and this month I found ice on my coils, I have 3.5 ton system with new refrigerant lin…

Started by George Gereis

3 Sep 13, 2013
Reply by James White

Air Handler Fan Speed

As much as I would like to say I am an expert, I am not when it comes to the actual performance and settings of a residential gas furnace a…

Started by Joshua Lloyd

15 Jul 8, 2013
Reply by Eric Kjelshus

Geothermal real-world performance

I've heard that measured performance of actual, installed geoexchange systems can be much lower than advertized COP numbers. Is anyone awar…

Started by Doug Horgan

32 Apr 18, 2013
Reply by Terry D. Davenport

New furnace causing interference with AM radio?

I just wrapped up a quality assurance site inspection where I heard something unusual. The homeowner had a new furnace & central air co…

Started by Nick Helmholdt

9 Mar 25, 2013
Reply by Nick Helmholdt

Where to install the vapor barrier for a finished basement?

I have an audit customer that is in the process of finishing his basement. The basement foundation walls are poured concrete. He has instal…

Started by Jim Klebes

7 Jan 25, 2013
Reply by Ken Watts

Trends in space conditioning systems in high performance homes, looking for your insight

Can anyone comment on the common types of heating and cooling systems installed in their region in high performance homes?  More and more,…

Started by Brennan Less

4 Jul 1, 2012
Reply by William H Nickerson

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Anthony Adams posted a blog post

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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Tom White's video was featured

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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Alfie Davis posted a blog post

Utility of a Hardwood Staircase

Everything needs a makeover after a certain time. Your home is one of them.  Sometimes, you…See More
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miguel pace liked miguel pace's blog post It is very important to select a fin fan
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Charles Ryan Weitzel posted a discussion

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
19 hours ago
Ronald Wallis replied to Jonny Fisher's discussion Minneapolis Blower Doors and Duct Blaster for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"interested in your equipment. Do you have pics? Is equipment compliant with new regulations?"
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
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