HVAC (69)

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Heat and A/C on a boat

My 40 foot sailboat is only about 100 ft2 of floor space, the surface area is more that of a mobile home - long and narrow, the hull and de…

Started by Ed Minch

3 Jun 4
Reply by John White


I am working my way through ACCA's latest manual LLH (Low Load Homes). The postulate of continuous fan increases indoor humidity in the coo…

Started by Danny Gough

12 May 18
Reply by Danny Gough

high rise humidity

I have a friend/client with dry conditions in his condo. He's on the top floor of a 17-story building.  He's always had dry conditions, but…

Started by Steve Nations

7 Apr 3
Reply by Dennis Heidner

Do ductless systems do better on the HERS?

Hi, all  There has been renewed interest in this conversation  http://homeenergypros.org/hpforum-archive#/discussion/4182/how-does-rem-rat

Started by Brett Little

11 Nov 19, 2018
Reply by Rob Salcido

Bath fan weirdness

I recently measured disappointing bath fan flows at a project - both being below our program minimum of 50cfm. The builder had the installe…

Started by Mark Furst

13 Oct 11, 2018
Reply by Bruce Fillmore

Mini split installation location

Reaching out to the experts today to ask about location of installation of a mini split.  I'm a realtor, not an HVAC contractor.   I'm work…

Started by Jan Green

14 Sep 27, 2018
Reply by Jan Green

Think of the house as a really big duct

There is an article in the June 9 issue of ACHR News magazine that might help a lot people understand why the house is really part of the d…

Started by Frank Spevak

2 Sep 21, 2018
Reply by John White

What's the Most Profitable HVAC Job for Your Company?

Simple Question - In your experience, What has been the most profitable HVAC job for your company? If you're not sure, feel free to state y…

Started by Wayne Melancon

4 Sep 18, 2018
Reply by Franco Oyuela

Tankless water heating and existing gas lines

If a tankless water heater is installed in an older home with existing gas lines that serve the furnace and stove, how do you determine if…

Started by Julie Saporito

5 Sep 14, 2018
Reply by Kent Browning

Let's solve this HVAC quiz!!!

Answer these three simple problems of your HVAC systems, let's see how much you know your system and its reasons of such problems. Problem…

Started by Aaren Stewart

7 Sep 6, 2018
Reply by John White


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