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The most recent discussions

Supply Registers (6" Round)

February 20, 2017, 12:30 am

How many supply registers (6 round) can a 5 Ton AC unit have? Specifications: Maximum CFM: 4,046 Cooling BTU's: 59,500 SEER: 16 Read more »

Tempstar furnace, pilot light turns on then off in 1 second

January 4, 2017, 12:38 pm

I have a Tempstar natural gas furnace. It has electric element for ignition of the pilot. It was working fine all December. Now, it does not work as follows: the draft fan starts and runs correctl... Read more »

New 95% furnace... can i use the old roof hole?

January 3, 2017, 4:57 pm

I want to replace an old 80% furnace that vents through the roof. But I don't need a new roof, and I'm hesitant to disturb the old shingles. Is there a kit that lets me put a high-eff concentric ve... Read more »

Trane Heat Pump

December 29, 2016, 3:29 pm

I have a Trane heat pump system that's about 20 years old in my house. Model # TWE036C140B0. I recently self installed a new Honeywell thermostat, and while it runs fine my energy bill has been incre... Read more »

Sparks seen in Baseboard heater

December 23, 2016, 8:30 pm

I live in a Condo Apartment. It has quite old baseboard heater. It was quite loose and displaced from the wall so I was trying to tighten its screws and then found that it sparks when it moves. Its w... Read more »

reznor propane heater

December 17, 2016, 10:15 pm

Why does my reznor burner shut off every couple of minutes? Read more »

Service contractor install TXV in pouring rain

December 3, 2016, 7:41 pm

Nightmare experience with a local Frederick, MD HVAC business. Contractor showed up to install TXV previously diagnosed as bad, in pouring rain, despite the fact that we had called 2 days earlier and... Read more »


November 15, 2016, 4:18 am

is there any way to still find the books by gary r lloyd ??? i have been looking for more then 2 years. please someone reach out to me and help me out. Read more »

trane xe 60 pilot light goes off when furnace goes off

November 12, 2016, 4:36 pm

My Trane xe60 furnace pilot goes out each time that the furnace stops heating and I have to relight the pilot. Read more »


November 12, 2016, 3:47 pm

We enclosed our outside patio. We notice heavy condensation running down the lowest wall. Our side walls are insulated however the aluminum roof isn't. If we insulate the outside patio roof with Styr... Read more »

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The best rated discussions

What size is my Comfortmaker A/C unit? rating: 5

I have a split Comfortmaker unit. I am trying to determine the size of the outside unit. I have a gas furnace model GUG094A016N that is 90,000BTU, but the outside units tag is gone. I scraped the ... Read more »

Amana 4 ton condenser blower motor rating: 5

  [ 2 ]

I have a 9 yr old Amana 4 ton 12 seer unit on my 9 yr old house in Houston TX. Yes, we use the AC nearly year-round so down here they seem to have a 10-15 year life span from what people tell me. Mi... Read more »

Re-use R22 line set for Puron system rating: 5

Today I rec'd the first of 3 quotes that I plan to get to replace my 25 yr old 4T Carrier heat pump and GE air handler. The contractor did a Manual load J and determined I need a 4T unit. (old syste... Read more »

Carrier/Bryant specified max static pressure for their AFU 94 furnaces? rating: 5

Anyone have a factory document (scan or pointer) which provides the factory's specified max static pressure? With their Infinity/Evolution thermostats max and current static pressure can be read s... Read more »

Trane A/C A-coil rust rating: 5

I have a 3 year old Trane XL14i. The evaporater coil / air handler is in the attic here in south Florida (fairly common). Now that it is cooler, I opened it up to clean the blower and just inspect... Read more »

The dangers of wearing shorts in a machine shop rating: 5

Group, It is my company policy to wear shorts anytime it gets over 80 degrees outside. Here in Southern California that happens a lot. For the second time this month I was denied access to a custom... Read more »

Goodman evaporator unit rating: 5

  [ 2 ]

I have a Goodman U-36 Rev B evaporator unit installed in mid-2003 in new construction. System suddenly stopped blowing cold air overnight. Technician I called checks around, says there's no juice,... Read more »

Finding TXV problems? rating: 5

  [ 2 3 ]

Has anyone been seeing new TXV problems? Ive recently installed a Tempstar 5 ton 14 SEER condenser with an Aspen TXV coil. (Sorry, the Tempstar matching coil had NO WAY fo fitting in that space.) Ra... Read more »

Thermostat - The best place for one in a house? rating: 5

What is the best place to put your thermostat? My thermostat is currently placed in my TV room. I don't believe this is the best place for it because the temperature fluctuates based on the number... Read more »

Nashua 557 Duct Tape - How does it hold up?? rating: 5

This weekend I'm going to spend some time in my crawl space tuning up my duct system (flex duct). By tuning up I plan to ensure runs are adequately supported and well connected to junction boxes. ... Read more »

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