HVAC (42)

Featured Discussions

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 GuinnLatest Reply

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 BlanchetteLatest Reply

Underperforming? Energy Efficiency of HVAC Equipment Suffers Due to Poor Installation

Hello all, A search of the site seems to indicate this recently published study from NIST has not made an appearance, so here's a link to…

Started by Steve WacloLatest Reply

Discussions Replies Latest Activity

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 Rod Fox

25 Jul 15
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
Reply by Morgan M Audetat

Using Two Exhaust Fans with AirCycler g2/FanConnect

A customer of ours recently asked if it was possible to operate two exhaust fans in two different bathrooms with the AirCycler g2 and FanCo…

Started by Carly@AirCycler

0 Mar 3

Getting Balanced Ventilation with the AirCycler g2-k

We spoke to a lot of people at RESNET 2015 about balanced ventilation so we wanted to share here how it can be achieved with the AirCycler…

Started by Carly@AirCycler

0 Feb 19

Proper means to "plug" flue pipes after testing gas appliances.

I have seen metal "plugs" (and this may not be the correct term) used for the holes that are drilled in vent pipes, in order to test combus…

Started by Patrick Michaelyan

26 Jan 29
Reply by Andrew Aliferis

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

Underperforming? Energy Efficiency of HVAC Equipment Suffers Due to Poor Installation

Hello all, A search of the site seems to indicate this recently published study from NIST has not made an appearance, so here's a link to…

Started by Steve Waclo

4 Dec 4, 2014
Reply by Robert Zockoff

Dirty Sock Syndrome in high efficiency HVAC units

I was recently told my new HE HVAC unit has the dreaded dirty sock syndrome.  Never had this problem with the old unit.  My research shows…

Started by Ti Mougne

12 Nov 17, 2014
Reply by Hal Skinner

When replacing outdoor unit, is it necessary to also replace the indoor unit?????

When replacing the outdoor unit, should the indoor unit also be replaced? most of the people have this question in their mind....please sh…

Started by Aaren Stewart

7 Oct 16, 2014
Reply by Eric Kjelshus

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

5 Sep 25, 2014
Reply by Robert Cameron

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