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There are 2835 discussions here comprised of 35990 articles. Here are the most recent and the best rated threads in HVAC Discussions

The most recent discussions

Just curious...............


March 27, 2014, 3:02 pm

I do not need a blower motor for my furnace, but I have a question about such motors. One of my furnaces has a four speed motor. If I should search for a comparable motor (such as: http://ww... Read more »

How to tell if heat pump compressor is "burned up"?


March 9, 2014, 12:42 am

I read some time ago that if a compressor burns up, the F22 inside the sealed unit is contaminated with acid. Is this true? If so, how do I test for acid in the F22? I have chosen to replace th... Read more »

STILL TRYING, RESPONSE TO SC


March 8, 2014, 7:25 pm

THANK YOU. APOLOGY ACCEPTED. BACK TO MY PROBLEM . I SET AIR HANDLER &HOOKED IT UP TO DUCTWORK , SO I HAD TIME TO LOOK OVER INSTALLATION INSTRUCTION & SERVICE FACTS BEFORE TECH SHOWE... Read more »

air handler fan speed


March 5, 2014, 4:13 pm

I just had a dx geothermal system installed with a trane tam7aoc48h41sc air handler. Tech who hooked system up lives 6 or so hrs away, so after 6 leaks & a 2nd tank of refrigerant he was more inerest... Read more »

TWEEDYPIE


March 5, 2014, 2:38 pm

I have a Zone Valve Question. I have hot water baseboard heat with 4 Zone Valves (White Rodgers). Just two days ago, the Living Room and Kitchen got extremely warm, I turned the thermostat down and... Read more »

Can washing machine start capacitor test good - and still be bad?


March 3, 2014, 4:28 pm

About a year ago the motor in my kenmore washing machine was acting up - buzzing but not turning. I suspected the start capacitor and picked up a used one for $10 at a local repair shop. These ar... Read more »

problem with vintage oil furnace starting


February 11, 2014, 7:56 am

I have an oil furnace, forced air, It's a Carrier 58HV085, 34 years old, and works well, until last night after I fell asleep. (Please, no one tell me to get a new furnace. I've heard that befo... Read more »

efficiency of portable split systems?


February 4, 2014, 7:38 am

The portable air conditioners which have a hot air duct going out a window are generally denigrated as inefficient. I realise that you have everything inside, generating waste heat. Probably okay for... Read more »

Dumb answers by jerks


February 2, 2014, 12:28 pm

I am amazed by the number of Idoits on this site that are intent on harrassing people with a bunch of nonsense responses to questions. I would hope the adminstraters of this site start blocking peop... Read more »

any opinions on this heat pump situation?


January 31, 2014, 6:39 pm

the run winding on my heat pump compressor failed and is completely open (zero resistance). it is one year and seven months out of the 10 year compressor warranty. contacted the local business who... Read more »

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The best rated discussions

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5

Thermostat Transformer


My White Rogers programmable thermostat died yesterday. My wife came home and found the house very cold so she turned the system off. When I looked at the thermostat I found the LCD panel was backli... Read more »

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5

Replace Leaking Evaporator Coil or Install new more efficient system?


Rundown: 7 year old house. We plan to live in it for 5+ years Rheem AC Unit - working fine. 10 SEER Rheem Furnace - working fine. Kind of loud. Rheem Coil(warranty is expired I think, its past 5 year... Read more »

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5

Using an air conditioner as a heat pump


I have a friend who has a cottage that has gas fireplace for heat. The cottage was built as a beach house and probably is not well insulated. The gas available is propane and propane now costs more... Read more »

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Best replacement for R12


There are a few older vehicles on the road running with R12. R134 is'nt a great replacement, but are there any superior to R401a (dupont MP39) for performance and changeover ease? I assume standard... Read more »

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5

Do you need help passing an HVAC licensing exam?


I have been holding seminars to help students pass the North Carolina HVAC licensing exam for 25 years. It's been my observation, that by exam time, many students have forgotten what they learned... Read more »

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5

AC Register Discharge Temperature

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I have a Central AC system that's been around since '73. The air temperature coming out of the last register in line has consistently been 54-56F year to year even with an OAT of 90F.. My daughter... Read more »

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5

quiet return grille recommendations

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My 16.5x31.5 furnace return grille is getting on my nerves after 20 years. Should I just go to Home Depot and supersize my grille? Or is there a brand out there with a reputation for quiet? Thanks, ... Read more »

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AC Sizing and compatability


My son and I bought a foreclosure for he and his wife to live in. We are having Gas heat and electric AC put in. My son is in construction and was given the name of an HVAC company who gave us a grea... Read more »

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5

Carrier Furnace Ignition Lockout - why?


Hi all, Got a furnace problem that has me running in circles. Perhaps some quick advice can point me in the right direction at least. We have a Carrier furnace, older that 5 years old, and this yea... Read more »

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5

Easy, Safe & Permanent Swamp Cooler Pan Repair


I have seen several threads on this informative hub regarding Swamp Cooler Pan Repair - Issue: As the swamp cooler ages, the pan that holds the water may deteriorate, become rusty and develop small h... Read more »