HVAC (49)

Featured Discussions

Commercial duct testing

Hello all, I am a BPI BA, HERS rater and QC inspector. I cant find a ton of information on this topic and I wanted to see what others had t…

Started by Shaun Latest Reply

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 live on the Eastern Shore of Maryland. In f…

Started by Charles Ryan WeitzelLatest Reply

AC exhaust up chimney

We are looking at getting a portable AC unit. Is it possible to vent the heated exhaust air into a fireplace that will exit up and out the…

Started by Bill BoltonLatest Reply

Discussions Replies Latest Activity

What causes a temperature plane in a home

I have a Customer that has a very open floor plan.  2 story opening in the middle of the house.  When you walk up the stairs you feel a dra…

Started by Energy Wise Solutions

11 Jun 8
Reply by Eric Kjelshus

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

11 Mar 9
Reply by David Eakin

Comparing the AirCycler g2 and HRV [Infographic]

AirCycler is excited to share that we have recently launched a new version of our Annual Ventilation Cost Calculator. Now, in addition to c…

Started by Carly Maltais

0 Jan 23

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

3 Jan 18
Reply by Wayne Melancon

Commercial duct testing

Hello all, I am a BPI BA, HERS rater and QC inspector. I cant find a ton of information on this topic and I wanted to see what others had t…

Started by Shaun

11 Jun 24, 2016
Reply by Glen Gallo

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 live on the Eastern Shore of Maryland. In f…

Started by Charles Ryan Weitzel

4 Mar 17, 2016
Reply by Mick Lane

AC exhaust up chimney

We are looking at getting a portable AC unit. Is it possible to vent the heated exhaust air into a fireplace that will exit up and out the…

Started by Bill Bolton

2 Jan 29, 2016
Reply by Thomas Ailstock

VRV or VRF ?

What’s the difference between VRV and VRF? Many people who ask this question, mistakenly interpret it as 2 different HVAC technologies. Ac…

Started by Igor Mitbarg

0 Jan 18, 2016

Does altitude affect AFUE? or just the input/output BTUs?

I searched and searched and searched yesterday for an answer to the question "Does altitude affect AFUE?" but did not come up with any defi…

Started by Rodney Fox

25 Jul 15, 2015
Reply by Morgan M Audetat

ERV in need of backflow preventer.

I installed an ERV on my last job with the intake and exhaust utilizing 6" round hard duct.  I have no problem locating an exhaust vent cov…

Started by Elizabeth Guinn

7 Jun 5, 2015
Reply by Morgan M Audetat

RSS

Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 7 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah 11 hours ago. 1 Reply

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco on Monday. 1 Reply

Latest Activity

tedkidd replied to Bob Blanchette's discussion Tankless Water Heaters... has their time finally come?
"Yeah. Gas water…"
34 minutes ago
Eric Kjelshus replied to Bob Blanchette's discussion Tankless Water Heaters... has their time finally come?
"With super cheap natural gas prices now, still worth going all electric?  Tankless needs a lot…"
1 hour ago
Stuart Langley liked Chris Clay's photo
6 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Stuart, I wasn't considering the copula windows... yes, those would indeed need to be…"
7 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"Well, @David Butler, you have seen the property more accurately than I have, but my impression of…"
8 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"@ Stuart,I don't think there's any concern about impact of 4" build-up on elevation…"
8 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"So this building has a few issues with air leaks and air leaks have so much to do with discomfort…"
9 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"John Hatfield has the right idea here for a new roof deck. Polyiso boards always need a good stout…"
9 hours ago

Photos

  • Add Photos
  • View All

© 2017   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service