All Discussions Tagged 'duct' (8)

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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 on Friday
Reply by Glen Gallo

How does Cycles Per Hour affect real world AFUE?

Some claim that modern furnaces have minimized off cycle losses to the point they no longer matter. Oversizing has become a comfort issue r…

Started by Bob Blanchette

12 Dec 30, 2014
Reply by Bradford E. White

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

0 Jun 13, 2014

Air Source Heat pump or mini-split efficiency

Greetings everyone!     I have a technical questions I hope I could get some feedback! I understood that air source heat pumps are very ef…

Started by Luis Hernandez

1 Apr 30, 2014
Reply by George J. Nesbitt

Duct Cleaning? Good value or a waste of money?

I have lots of my auditing customers who ask me about duct cleaning, and if they should do it.  It seems like the only way to get them real…

Started by Gordon Smith

21 Dec 22, 2012
Reply by Robert H

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 Krista & Matt

11 Mar 22, 2012
Reply by Bob Blanchette

So have you experienced the New TEC Trainer?

Just curious if any trainers/students have experienced the new TEC Trainer form The Energy Conservatory.  If so, we'd loved to hear feedbac…

Started by Krista & Matt

0 Jan 26, 2012

Duct testing in a conditioned crawlspace

Concerning duct testing in crawlspaces (this is for new houses for Energy Star, but will be the same for existing houses):I have a house on…

Started by Ed Minch

13 Nov 25, 2011
Reply by Ed Minch

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