HVAC (47)

Discussions Replies Latest Activity

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

Thermostat set points

I have a programmable thermostat that is, well, dumb. It is willing to set times and abide by those, but it doesn't take in to account the…

Started by daniel manriquez

5 May 17, 2014
Reply by Bob Blanchette

UV light in Furnace?

Had our furnace and air ducts cleaned today for the first time in years; could have spun an entire dog from all the embedded hair.  The ser…

Started by Home Energy Magazine

29 Mar 25, 2014
Reply by Brett Little

LBNL looking for HVAC contractors that service Small Commercial

Our team at Lawrence Berkeley National Laboratory has developed an Energy Management Package to target small commercial buildings that is d…

Started by Erin Hult

9 Feb 15, 2014
Reply by Curt Kinder

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Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"I don't know what it stands for. See RAB.com"
yesterday
Jim Tenhundfeld replied to Jim Tenhundfeld's discussion LED's and motion sensors
"That makes sense since the same thing happened with dimmable CFL's.  I have never heard…"
yesterday
Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"My first thought is whether the motion sensor and/or the LED lamp is a cheap one. I had so many…"
Saturday
John Wagner joined allen p tanner's group
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
Friday
Home Energy Magazine posted a blog post
Friday
Jim Tenhundfeld posted a discussion

LED's and motion sensors

When completing an audit, a customer told me that when he installed a LED lamp in his outdoor…See More
Friday
Barbara Smith posted videos
Thursday
CharlieK posted a discussion

Eco-Cottage Program Applauded By Housing Groups, Suppliers & Lenders

AmeriSus a leading player in the eco-kit home business kicked off a new program on MLK-day which…See More
Thursday

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