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Questions tagged [heating]

For general questions on heating in your home. Be sure to also include tags describing fuel source (electric-heat or gas), type of components, etc.

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3answers
2k views

How can I resolve a “vent intake or termination” problem on my furnace?

It's June so my furnace has been off for a while. But it's cold today and I have a sick kid home so I tried to start my furnace but it's not working. I'm getting an LED code with three red flashes ...
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2answers
2k views

Goodman Furnace igniter glows but doesn't ignite

Specs: Goodman Model GDS80703, over 10 years old, Control board replaced 2 years ago 2 months ago, it just started glowing and not igniting, and after doing some basic troubleshooting (Reboot, clean ...
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3answers
48 views

Insulating small area in attic-like space

I recently moved into (am renting) a new place and have set up a desk in an attic like space. It's overall not an ideal setup but I have limited financial resources. The issue I am facing right now is ...
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2answers
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What heating system do I have, and what can I do about water pressure in my shower?

New homeowner (UK based) and getting to grips with all that comes with that. I previously only lived in a flat with a standard combi boiler, my new home seems to have an older system in place ...
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1answer
5k views

how to change furnace filter (bottom return) for Lennox G43UF

I have a Lennox G43UF furnace and I am not sure if I need to have both a filter for a side return and bottom return. If I do (which sounds logical), where would the location of the bottom return ...
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1answer
4k views

If you reduce a 8“ duct to 6” just before a register boot, does it produce more force through the opening?

I figure this is probably true if there was nowhere else for the pressure to go, at least in terms of water. Is this true for air pressure even considering there are other paths for the air to move ...
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1answer
45 views

What to do about a radiator behind a curtain?

I have lived in several houses, including my current one, where there is a large radiator behind a curtain, and a window above the radiator. My question is - just how bad is this for heat efficiency? ...
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0answers
22 views

I live in a multi unit home and we have two heat meters but only one thermostat. What is needed to get a 2nd thermostat?

The basement and top two floors are on one bill and the first floor is on another bill. What is needed to get the first floor its own thermostat?
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1answer
44 views

Installing PEX pipes close to heating vents

We are renovating all the bathrooms in our house that was built in the early 70s. The plumber has replaced most of the copper pipes with PEX tubing. He has not replaced copper entirely and has ...
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4answers
14k views

How do I eliminate the cold drafts coming from my air conditioning vents during winter?

I have a forced hot water (baseboard) heating system in my home and added central air conditioning about 10 years ago. The cooling system's air handler is in my attic, and duct work was added for the ...
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1answer
21 views

multiple thermostat boiler connection

I have a boiler system with thermostats and valves for three floors. before i changed the boiler what ever thermostat called for heat worked for that floor. Now all thermostats have to be on or ...
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5answers
12k views

Should I replace my mercury switch thermostat?

We have an old mercury switch thermostat in our house, You know the type, gold ring, very common. We are in new England on a gas/steam system. There is no central AC. We have been told by more than ...
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2answers
54 views

Heat pump not working after rain

A couple weeks ago, I had a Goodman 3 ton heat pump split system put in. At 5pm hours today, I was outside near the heat pump and noticed that it was functioning properly. At about 6pm, there was a ...
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0answers
11 views

Enable “early start learning mode” on my hot water heater system thermostat?

Last year our old thermostat died and we got a new one. This is not a smart wi-fi connected thermostat, but it has an "early start learning mode" setting which isn't enabled by default. Last winter I ...
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1answer
30 views

hydronic heating register air locked

Can I change the air relief valve on one of my hydronic heating registers without draining the system,I have a water shutoff valve at the register and the system is cold.The boiler pressure shows 10 ...
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1answer
50 views

Why is my Heat Pump fan not turning in cold weather?

My heat comes on and you can hear the condenser unit come on as well. However the fan is not turning? The outside temp is 30 degrees? Is this normal? Can anyone share some wisdom on this? Thank ...
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2answers
44 views

Installing double-pole line voltage thermostat for 2 baseboard heaters

I'm trying to replace an old manual thermostat with a new digital thermostat for my line voltage baseboard heaters. If it's important, this particular thermostat simultaneously controls two separate ...
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0answers
27 views

No flow rate in underfloor heating manifold

I've recently fitted a Under Floor Heating system; a two room, four port manifold system. I filled the system from the hose connection as directed (flowing water through the circuits until there are ...
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1answer
74 views

Heating Split level

I'm surprised that I can't find more useful information on this. I have a split level home. Main floor contains living dining and kitchen. 8 stairs up to top level with 3 bedrooms and a bathroom. ...
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1answer
40 views

Heating system zone is too hot

One of the 4th zones on my heating systems is getting too hot true the return line making the room very hot and enableling the thermostat to do the job.
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4answers
131 views

Thermostatic Control of Simple Apartment Heater

My daughter's apartment has a very simple heater. As shown in the pictures below, it is an heater-coil unit with only a fan control. There is no temperature control or thermostatic feedback. So, for ...
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2answers
201 views

Boiler vent and expansion tank leaks

I had my boiler inspected and cleaned recently and the tech found a few issues. He showed me how the valve on the expansion tank would leak when he would push it in, which means the tank needs to be ...
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0answers
22 views

Energy-saving boiler settings?

Does it matter in terms of energy usage whether my gas heater is set to higher or lower temperature? Situation: - 2 floor house, all water radiators heated by the same gas boiler system -1st floor ...
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2answers
57 views

Heated flooring under subfloor

I'm trying to make the best of a bad situation here. New (old) house + slow drain + airhead teenage daughter = flooded 2nd floor bathroom. It flooded so bad that the ceiling in my entryway ...
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2answers
362 views

Can a pilot on a furnace be on but the thermocouple still be bad?

Heat just stopped working after working 3 days ago. All circuit breakers are looking good, gas is flowing, and furnace seems to be operating fine. Pilot is on and thermocouple is holding the flame, ...
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6answers
442 views

Connect two thermostats in parallel

I saw a thread about connecting two thermostats in parallel. I could not add comment to that thread , so I put question here again. My tenants always shut off thermostat or reduce temp when they are ...
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2answers
86 views

Electrical box breakers

I have 10 amp breakers. When turning on several lights or running several things the breaker trips. Can I change them to 15amp? Is that higher or going wrong way? Read about wire sizes, how ...
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1answer
2k views

Where to connect my “c” wire on the boiler side. Weil mclain gas boiler

Im just curious if the “c” terminal on the plug in relay is where im suppose to connect my “c” wire on the boiler side. I have 18/5 wire ran already. Just need to find out where to terminate. To the ...
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1answer
31 views

Alternatives to forced hot air in-wall units

My condo came with in-wall hot air units with a fan (one for the bedroom, one for the living room). I am very unhappy with this heating system and am looking for alternatives. It is very noisy (to ...
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2answers
2k views

Why does my Goodman a/c blower motor randomly not work?

My blower motor stops working almost every night! I have no issues during the day. If the motor kicks on it works fine but when the thermostat reaches temperature and shuts the unit off it’s a 50/50 ...
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1answer
68 views

What is causing intermittent furnace ignition failure? How to Diagnosis?

I have been researching how to diagnose this intermittent lighting issue with my furnace but the common issues do not seem to apply. Blower turns on Ignition coil turns cherry red Sound of gas blower ...
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2answers
92 views

Can I connect my two HVAC systems?

My house has two HVAC systems. One is in the attic and has supply and returns in the ceiling of the second floor. The other is in the basement with supply and returns at the floor of the first floor. ...
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1answer
47 views

Radiator turning off too soon

We have recently had new radiators fitted, but one of them appears to be turning off too soon on the TRV. Its a Myson TRV with numbers 1 - 4, as well as white and blue dots. We have the TRV set to ...
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0answers
31 views

How do I find flow and return of central heating spur?

I'm attempting to confirm which of the two pipes of my central heating spur is the flow and which is the return. The advice I've found so far says to look for marking: RED marking (either tape or ...
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1answer
25 views

Replace forced air heater with electric radiant floors

There are forced air in-wall heaters in my house which are quite noisy. I am considering to replace those with electric radiant floors. What would be the least invasive way to do it? Current heater ...
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1answer
35 views

Convert gas wall heater to inset fireplace

This wall heater is running on gas and has an electrical control. It is actually in front of the brick vent behind This is in the attic as the vent connecting on top Obviously this wall heater is ...
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1answer
93 views

Bubbles in water heater system

My heater stops pushing hot water through the heating loop. The symptoms can be addressed by bleeding the system which always produces a lot of air coming out. The heating works for about 24 hours ...
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1answer
46 views

Why is my circulator pump heating my house?

Our house had always had some latent heat coming through the vents even when they were turned off, which was causing the temperature to be pretty unbearable during the summer. One day, we heard ...
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1answer
185 views

How do I get my hot surface ignitor to ignite?

I have a Trane TUD080C936J0 gas furnace/ac. The furnace starts up via a hot surface ignitor. The ignitor that was in it went bad, and I bought a replacement. When I plugged it in, it worked fine - ...
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2answers
104 views

How is heat output controlled in closed-vent gas fireplace inserts?

Comparing Empire VFRL-18 and VFRL-18-10, the former is 26k BTU while the latter is 10k BTU. The look and price are identical. My question is, can I buy the 26k BTU unit to use in my living room, but ...
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1answer
99 views

Electrical pipe heated by heating pipe - against the code?

Please see the picture below. The three pipes in the front are electrical (conduit). The big black pipe in the back is the heating pipe. I guess something went wrong when building the building and ...
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1answer
6k views

Goodman gas furnace limit switch opening, blower only runs with a/c

I apologize in advance for some of my incorrect terminology. My father has a 2004 Goodman GMH80904BN gas furnace with a/c. The a/c has functioned properly all summer here in Ohio, we have recently had ...
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1answer
28 views

Use CLR to clean stuck bleeder valve

I was bleeding the air out of hydronic heating zones and I notice some mineralization on bleed valve attached to my air scoop. I took the Schrader valve cap off and tapped the valve I noticed it was ...
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2answers
347 views

Furnace Blower fan doesn't start

I have a keeprite high efficiency furnace that Was a part of my new house. It's 2016. The Honeywell thermostat is set at 23 deg C. This is what happens when the temperature is below the cut-off I ...
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1answer
19 views

coleman/york furnace 7 red flashes

My furnace "fails to start" 3 times, then it flashes 7 beeps and quits trying. I can hear it start then the flame "just stops" 3x in a row. What gives?
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2answers
72 views

Alternatives to forced hot air unit heaters?

The current heat source in the house a Cadet in wall unit heater in each room. They are really noisy and often emit this "iron left in one place too long" odor from (I presume) scorching dust. I've ...
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6answers
827 views

Why can I not find a 120V programmable 2-pole thermostat

I'm wanting to connect a 120V wall heater to a programmable, 2-pole thermostat. The difference between 1 vs. 2 poles involves whether or not the thermostat can truly, completely cut power or not. ...
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1answer
189 views

I have California double sided wall furnace, only one side is producing heat. How would I go about trouble shooting It?

I've been using my furnace for 19 years without issue. Living room side cranks out the heat, dining room side has no flame of any kind. How would move forward to fix?
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2answers
14k views

why does my heat pump wiring diagram show 7 wires going to the thermostat but the thermostat only says it needs 5?

Here is a link to the wiring diagram for my heat pump. The thermostat that I am planning on buying has the following terminals C, G, Y, O/B, RC, R, Aux, E, and L. The instructions say to jump the RC ...
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2answers
168 views

underfloor heating and solid wood floor

Wet system underfloor heating suppliers seem to insist on tiled floors. I want to use solid timber planks, which have a thermal resistance that stops heat passing through easily. With good ...