Latest threads in HVAC Discussionsshow only best voted threads

Subject Author Posted Replies
 
lennox 90% in attic
I have a customer with a very erratic problem with thier furnace in attic. Its a Lennox G43UF-60C-110-08. The problem happens on only extreme cold days. I think something is freezing or slushing up in...
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Anyone understand the "dual" fuel system with York gas furnaces? My Typo upset that manmy people??
Did I say something wrong? So anyway, Abe, thanks for the help. I actually purchased the heat pump kit and thermostat from the company you recommended. Thanks a million. Jimmy
 
Anyone know of a good system sizing calculator? 1600 CFM Electric Furnace?
Can someone help me understand what AFUE ratings is and why is it important to me? I am buying a new gas furnace and need to make sure I get the right system. I have 3 quotes and all of them have...
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Duel fuel system question. York gas furnace
I'm running a duel fuel system up here in PA and just about ready to install a high end 98% York gas furnace system... running a heat pump down to 27 degrees. Do I need a bonnet sensor or something...
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Variation on a theme: Humdifier and VS blower
I also have a concern re: above, in that the furnace is a modulating unit, which runs a lot in low speed (around 500 CFM in a 2500 SF home). Using a bypass humidifier with a 6" bypass duct, I figure...
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How far can you throttle down the discharge on a solar hot water circulating pump ?
Im wanting to install this Pump for my open type solar hot water heater (Florida) : want to be able to adjust the water flow rate thru the solar collector when im setting up the system, and need to...
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How do I tell if I have a single or multi stage heat pump?
I want to replace my current thermostat with one that is programmable, but I don't know if my heat pump is a singe stage or multi stage heat pump. This is all the info I have: Gibson Split System Heat...
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Nice little online fuel cost comparison calculator
disclaimer - not mine, I just happened to find it )
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Building systems information
If you would like a free reference, training source dealing with building mechanical systems visit website This will help for both maintenance and energy management considerations.
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Happy New Year
May you all have a prosperous and profitable new year.
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Truesteam and Variable Speed Blower
We recently had a Trane XC95/XL16i furnace/heatpump combo installed along with a Honeywell HM506 Truesteam humidifier. After several issues with the installation the humidifier is finally working....
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And to all .....
A good night. http://d.yimg.com/a/p/ap/20091224/capt.1a9fa75007d74e51901801f4753dc3d3.holiday_storm_iacn103.jpg
 
heater filters for output side?
Having a problem with certain smells coming from two ducts in the house. Are there any activated charcoal based filters that can be placed inside or over the transoms?
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I heard back from Santa !
http://www.weaselzippers.net/.a/6a00e008c6b4e588340120a777a1fc970b-pi
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Any IP or ethernet-capable HVAC thermostats with their own internal web-server?
Umm, Honeywell has a new line that offers this capability, or if you want more of a consumer product Easy to install, learns your schedule, programs itself, and uses Wi-Fi to connect to your phone....
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