HVAC (49)

Discussions Replies Latest Activity

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 Maltais

0 Mar 3, 2015

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 Maltais

0 Feb 19, 2015

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, 2015
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

HVAC - Cooling and Heating Load Reduction

Common load reduction strategies include:       Tightening your building covering and adding additional insulation to condense leakage.…

Started by Aaren Stewart

1 Sep 2, 2014
Reply by Hal Skinner

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

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Forum Discussions

Origin of guarded blower door testing

Started by Kim Tanner in General Forum. Last reply by Eric Kjelshus 12 hours ago. 9 Replies

Electro Magnetic Fields (EMF)

Started by Barry L NewDelman in General Forum. Last reply by Daniel Cullen Aug 10. 5 Replies

When is it too windy to use blower door?

Started by Brandon Walton in General Forum. Last reply by Iain Walker Aug 10. 17 Replies

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Eric Kjelshus replied to Kim Tanner's discussion Origin of guarded blower door testing
"That same house that meet highest sealing rate in early 1980 we went back and super sealed it and…"
12 hours ago
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