For general questions on heating in your home.

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108 views

Why would only 1/3 of my registers be blowing warm air?

I have a Coleman gas furnace in a wall space in my house which somehow shares the blower on my a/c unit on the roof because it turns on when furnace is called to start, though it does bump up after a ...
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1answer
52 views

Updating thermostats to single system

I have a three floors in my house, each controlled by it's own thermostat (separate air handlers and mechanical valves on furnace). Baseboard heat. The three thermostats are controlled separately, ...
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1answer
3k views

What could cause a Trane furnace to not start heating?

I have a newer (2007?) Trane XL90 (model: tdx2b080a9422aa)forced air gas furnace. The problem I am having is the burner and fan will not start. The thermostat is set at 67 degrees and shows it is ...
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0answers
124 views

Adding vents to duct?

My house has forced air HVAC. When I finished the basement, I used a closed cell foam insulation that worked very well. The basement will get only 8 degrees cooler than the first floor during a time ...
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0answers
326 views

How do I install a WiFi thermostat with a Well-McLain steam boiler?

I have a Weil-Mclain 150000 BTU steam boiler, and have only 2 wires connected to my thermostat, but would like to add a new Honeywell WiFi thermostat. I have no C wire, no A/C, or any other type of ...
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0answers
20 views

Is my room suitable for electric underfloor heating?

We are in the process of buying a new home and would like to have ceramic tiles on the ground floor. This is more resistant but can get very cold in winter, so we thought of having underfloor heating. ...
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0answers
279 views

Why won't my condenser turn on when I run my heat pump?

I have a York Affinity condenser. When I run my heat pump, I expect it to turn on somewhere in the cycle but it doesn't. It generally does this once a year. The usual fix is to cycle the power of the ...
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0answers
213 views

How do I know if my high limit and low limit are set correctly on my aquastat?

I have a boiler that is only providing heat for my forced hot water baseboard system (4 zones). I've always thought that the high limit on the aquastat was too low (the temperature on the boiler ...
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16 views

How can I keep a room cool that gets hot via hot air from a duct window?

My room window which opens in passageway of a double story building, remains cool and some cool air also comes from it. Unless other building members open there split ac,because all the outers ...
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0answers
23 views

Why would one of the zones of my Slant Fin gas fired hot water baseboard heating system not be heating?

Thus far I have: replaced with new batteries. turned down temp and switched the breakers turned heat back up, no response Can a pilot be out for one zone? The other two are warm and cozy. Did ...
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0answers
22 views

Bio-ethanol or other solution?

This question is related to Can bio fuel ethanol be used as a main heating source? In regards to the thread title, as a apartment buyer where the builder is going to implement a bio-ethanol ...
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0answers
66 views

Why would a GFCI on my infloor heating circuit trip, when an exhaust fan on a different circuit turns on/off?

I have infloor electric heating installed in our bathroom. The power is supplied by a dedicated 240V/1Ph. circuit that also feeds a couple of baseboard heaters in our bedroom. The infloor heating is ...
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0answers
52 views

What could be causing my baseboard heater to not heat up?

I have a Dunkirk Gas boiler with an Amtrol Extrol expansion tank Have a weird situation During the winter when it is very cold out, my heat does not turn on automatically. My thermostat may say 70 ...
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0answers
48 views

My gas heater relief valve keeps blowing, is the circulator installed backwards?

So I had a contractor put in a new circulator last season. Its a honeywell PC3F. I tried turning my heater on for the first time this season and the relief valve blew. I tried replacing that and ...
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0answers
159 views

Will porcelain tile provide enough thermal mass for off peak heat storage?

The U.S. department of energy suggests electric radiant heat can be cost effective if preheated during off peak electricity hours if installed within an appropriately massive covering. Is there a way ...
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0answers
2k views

How can I add a common wire to the existing furnace wiring?

My current furnace has Rh and W1 to the thermostat. I'd like to add a C for my new networked thermostat, but I'm not sure where to connect it. From my research it sounds like I should be able to just ...
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0answers
416 views

Do heater vents that will self close exist?

Are there heater vents that can open and close as the air passes through them; this way being closed when off so the warm air won't escape back into the vent. My heater is located outside meaning the ...
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0answers
130 views

Where can I find a remote mains socket for my electrical heater?

I have been looking around for a remote mains socket which will operate my heater in my office at the end of the 70 feet garden. I want to be able to switch on the heater from the house. The label on ...
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0answers
276 views

How can I clean out the pressure switch port at the inducer housing on a Lennox G40UH furnace?

I have a Lennox G40UH(x) furnace, but the gas does not ignite, because water may have entered the system while raining, or the the pressure switch port at the inducer housing has just to be cleaned. ...
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0answers
807 views

What can I do about my odd sized heating vents?

Two related questions: I have a problem section of heating vent that is 2.5" x 12". I thought I'd be able to find this size in Lowes or Home Depot, but nothing is even close (I see 3.5" x 10"). ...
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0answers
23 views

Why would a blower motor work with A/C, but burn out with furnace?

I've gone through 2 blower motors since I purchased the home 3 yrs ago. I never have an issue with the blower when the AC runs; but it keeps dying in the winter with the furnace. I've had 2 HVAC ...
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11 views

Gas Back Boiler Pilot Light

I have an old Back Boiler - I have had a few previous problems trying to relight pilot light. However, I haven't had any problems for a few years. Today, new gas pipes were being connected out on ...
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19 views

How can a thermostat be connected to a passive solar water heater?

How can a thermostat be connected to a passive solar water heater so as to serve as an automatic control valve between the collector and the storage tank
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47 views

Baseboard heat not keeping up

This is my first winter in my house which was built in 1991. A Navien CH-240 that provides both hydronic baseboard heat and hot water was already installed. We have two zones, upstairs and downstairs. ...
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0answers
21 views

How can I minimize energy consumption using my baseboard heating device?

Should I leave it ON most of the time and just play around with the temperature, or is it better to switch it OFF when I am not in the house and then turn it back ON?
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12 views

Balancing multi-family home temperature

My parents recently purchased an older, multi-family house with a finished basement and two apartments. There is a single furnace, and single thermostat on the first floor. The whole heating system is ...
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0answers
50 views

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating?

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating ? Standard screed thichness is something like 50 mm to 80 mm or so. My idea is to replace the ...
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0answers
53 views

combi boiler shuts off after a couple of hours

hi my combi boiler keeps switching itself off after a couple of hours running on the timer. You only realise when the room starts to go cold. You have to switch the boiler itself off for about 10 mins ...
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0answers
47 views

underfloor heating with cork floor tiles

What is the appropriate subfloor for cork tiles over underfloor heating if the floor is supported by wooden joists? How thick can the floor be?
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29 views

Hot water baseboard is hot, but no heat

We have a water heated baseboard in our condo unit. The heat has been working fine for last 4-5 years. Since last four days, the temperature is dropping to 70F. Yesterday morning, it went to 80F and I ...
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55 views

HVAC ducts ready for finished basement?

I'm starting to finish my basement. Before I do so, I want to be sure the ductwork is sufficient to keep it warm during Colorado winters. The basement was finished when we moved in, but gross, so we ...
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0answers
50 views

Need help with my furnace

Why does my fan blow cold air and not stop but when I turn the air down my heating coils in my furnace seems to kick on and get real hot then kick off and kick back on please help it's freezing
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17 views

blower runs intermittenly

I have a coal furnace, the damper motor fried and could not find one like it anyhere. I had to buy a actuating motor and transformer to power it. I also bought a new fan/ limit switch. I wired the ...
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336 views

Why does my Trane only blow cold air when the system is set to Heat?

The thermostat is set at Heat at about 69 but it doesn't warm up. Stays at 65. Just blowing cold air. I had someone come out to look at my Trane XB80, and he said it was probably a bad gas valve. It ...
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0answers
50 views

How can I switch underfloor heating pump after boiler?

my heating system has a boiler which is switched on by a thermostat, it works like this: L/N -> thermostat -> zone valve -> boiler The zone valve has 4 wires, L, N, call for heat and common; once ...
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62 views

What could cause the heat side of our split pack heating/air unit to stop working?

Our heat side of our split pack unit (runs on propane) come on and will runs little bit but then won't come on again. We can turn it off for a while and then it will run again. What could be the ...
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16 views

Noisey Heat Pipes

We have baseboard heating in our house and the pipes are very noisey. I've been reading that one way to help this is to bleed out the air from the system. I don't know if the previous homeowners did ...
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0answers
292 views

Heating zone not working when other 2 do

I have three zones of forced air/baseboard heating in my house. I had the furnace shut off for the summer and after turning it back on, two zones in the house work and one does not. Any tips on how ...
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0answers
28 views

Electric HVAC unit runs and stops randomly

I just turned on my heating unit for the season and it seems to be running and stopping intermittently. I'm not sure if this something to be concerned. This happened last season as well and I called ...
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0answers
33 views

Keep finding thermostat on heat

On multiple occasions now, I have noticed odd things going on with my HVAC system, only to go to the thermostat and find that it has been set to heat! This happened once in the middle of summer, when ...
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0answers
25 views

Furnace acts like it is not getting power

Furnace Heil 7000 acts like it is not getting power, I know there is power to the furnace. There are no led lights flashing either.
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0answers
58 views

Covering Up A Large Gap In A Wall

I was looking for advice on how could i create a partition between my two rooms which have a huge frame in between them. The place was originally covered by curtains but putting up curtains on the ...
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0answers
70 views

Are wall air vents a potential problem?

A house I'm looking at has A/C vents in the walls, rather than in the ceiling or floor. I've never lived in a house with air ducts in the walls. Can I expect to have problems? The house was built in ...
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0answers
359 views

Using 1" black iron pipe as a hydronic radiator, how many feet of pipe would I need to heat a 500ft^3 room?

I guess industrial is hip these days. Or maybe it's just me. But I'm thinking of making a snaking heater/towel warmer for my bathroom remodel. How many feet would I need, and how is this calculated? ...
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0answers
169 views

Why is my heat not shutting off at the set temperature?

When I turn the heat on on my central heat and air unit, the heat came on then continued to run getting really hot. It would not shut off unless I turned from auto to on then back. Sometimes I had to ...
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202 views

Hot water baseboard heater, one zone is cold

I have a hot water baseboard heating system. I have 4 zones controlled by 4 thermostats. The basement is cold. I installed a new zone valve for that area and it is still cold. I bled the zone of ...
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0answers
64 views

Can I use my forced air furnace to heat water for radiant heat too?

I moved from Europe to USA 4 years ago and I was wondering if it's possible to combine forced air heating with the heating that uses radiators. My idea is to use the furnace for forced air to heat up ...
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0answers
316 views

Why does the water pressure in my boiler go up so high?

The problem I have is with the pressure dial on the tank in bathroom. I was told that both needles should be at about 1.5, but the red needle rises up and then we have madly banging pipes, and ...
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0answers
251 views

Why isn't water running through our radiators?

We had a plumber in today to bleed our rads. He also changed the batteries on the thermostat and fiddled around with the boiler. Since he left the temperature has dropped dramatically and he's refused ...
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0answers
692 views

What could cause my radiators to go cold when the hot water is turned on?

when only heating is selected on my program timer the radiators all work fine and are hot. But when both heating and hot water are on the water gets hot but all the radiators go cold. When the hot ...