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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Nest thermostat - combi boiler and UFH set up question

We recently had some work done, a new open plan room, a new boiler and underfloor heating (UFH) put in. We had some confusion, a lot of which comes from not having a basic understanding of how the ...
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4answers
59 views

Cold finished basement

I live in house built in 1968. My basement is partially finished. There is drop in ceiling above and there is no insulation in the ceiling. The floor is covered with some old vinyl tiles which feels ...
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87 views

Indoor fuel tank removed - How to eliminate lingering smell

Background: I recently replaced my home heating system (an oil burning furnace) for a modern heat pump (air-water). There is a room in our basement (2.9m x 3.5m, or roughly 10ft x 13ft) where the 10'...
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In a house with baseboard heat, how can I tell where areas I need to heat in the winter to prevent pipe freeze?

All, I recently purchased a property in the mountains as a vacation home. It is two stories plus a basement. It has no central air, and just electric baseboard heat. It is at a rather high elevation ...
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1answer
44 views

Sound proofing bedroom doors, what to do about air flow?

We recently replaced all the carpet in our home with hard floors, dramatically increasing the amount of noise transmission between bedrooms and the hallway. I've been researching the best ways to ...
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1answer
203 views

Oil furnace fan won't shut off when “heat” plug is connected to control board

I was changing my thermostat and I attempted to make the swap live without turning power off. When I connected new thermostat, the fan kept running. Ruled out bad thermostat and wire short by ...
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3answers
591 views

How do I bleed a noisy radiant heat system?

I have a gas fueled (converted from oil just a few years ago) boiler in my basement with an integrated tank-less water heating system for the showers/taps/etc. The output is three zones as shown in ...
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1answer
512 views

Installing a Hive Thermostat

I purchased a HIVE thermostat and want some assurance before I go about installing this. First of all i was wondering where to put the receiver as I thought it would just replace one of the ...
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What is this noise coming from my furnace? [closed]

There is a noise that emanates from my furnace before the heat starts to blow into the house. What is it? Should I be concerned? Video: https://youtu.be/A3F7afbI_a0
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1answer
209 views

Why don't HVAC service people want to use outdoor temperature sensors to increase efficiency?

Here in central Virginia, most houses use heat pumps with electric auxiliary heat. I have inquired with several different contractors about installing outdoor thermostats on my units to 1) disable ...
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1answer
47 views

wiring hrv in a confusing house

some beautiful pictures first time posting apologies if my placement is off Buying HRV. I am debating between two units, venmar evo5-700 which doesn’t support furnace interlock or lifebreath rnc205, ...
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1answer
3k views

Why is my furnace blowing hot air outside?

So I have been having trouble heating my home. I noticed today that there is a vent blowing hot air outside. It is not the return, chimney or venting. Any ideas other that the builder thought we ...
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1answer
30 views

Loud knocking noise in house with radiators and old plumbing

I'm staying in a three story home with radiators and old plumbing (probably copper). I'm a guest and it's a rental with a management company (they fix a few things here and there but not most things). ...
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2answers
78 views

Blower Fan Comes on and runs cold air and then shuts off before the gas and heat actually come on

I noticed on our Carrier furnace that the blower motor and fan come on when the heat is called for like a minute, then it shuts completely off before the gas and heat and blower motor take off to heat ...
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2answers
73 views

Boiler heating gauge drops to negative pressure (psi) on cooling

I just moved into a older house (1937) which has a boiler heating system (steam). When the boiler kicks on the gauge barely goes above 0 psi, and after heating the gauge will drop to about negative 5 -...
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1answer
314 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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1answer
70 views

Half of furnace turned off?

I moved into this house about 10 years ago, I noticed on the furnace that one of the breakers for the electric coils is off with a note saying "Leave breaker off". After cleaning out the blower for ...
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1answer
146 views

HVAC York diamond 80 furnace A/C

So I have a York diamond 80 furnace and the motherboard burned out so Lowe’s came and replaced it. I’ve been using the heater because it’s winter right now but the other day I accidentally hit the ...
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2answers
57 views

Single cylinder set-up for geothermal heating and hot-water

I am looking to install a geothermal heating system to provide hot water and heating in a small home. I am aware that constant cycling of the geothermal heat pump is not desirable, so it is usual to ...
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52 views

Old Steam Furnace

I have a old steam furnace that is running fine now but it’s not hooked up to the switch or the transformer. I have a brown wire (cable with brown insulation) containing a red and a white wire coming ...
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0answers
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Do push-to-connect (Sharkbite) couplings allow for any thermal expansion?

I was reading the installation instructions for hot water (hydronic) baseboard heating sections. It says to consider using a special coupling between long sections of baseboard to allow for thermal ...
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2answers
89 views

Should I COMPRESS fiberglass OR use foam insulation?

I have a room made of hollowed concrete blocks that I framed by mounting 2x4s, wide side against the wall. This gives me a 1.5in depth cavity to fill with insulation. Should I use an r19 fiberglass ...
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3answers
46 views

Will fiberglass insulation grow mold? (Florida)

Followup to this question one of the comments says that fiberglass can trap moisture and lead to mold/mildew. I did some research myself and found other sources saying the same. This worries me -- ...
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1answer
37 views

House warm thermostat off

I have an old house that has baseboard heating. Ranch house. It has a full basement the length of the house. New Lochinvar boiler. Thermostat is off and yet our side of the house is warm. 62-66 ...
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1answer
313 views

Why doesn't one of my two baseboard heaters produce heat?

I have Federal Pacific baseboard heating in my bedroom. One will heat, the other one will not. The one that doesn’t heat has the control in it. What might be the problem? Also where is the ...
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1answer
28 views

Is there a small ductless condenser to fit in A/C sleeve?

I own a 350ft studio co-op unit which currently has an old AC unit and two electric baseboards for heat. I was thinking it would be nice if I had a single high hat in the middle of the room connected ...
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1answer
3k 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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2answers
67 views

Sliding bathroom barn door covering cadet heater

This was a design decision I made a month ago and now after things putting together, I have a "duh" moment. This is my bathroom door which will have a barn door sliding to the left: Note that there ...
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2answers
61 views

Gas Fireplace: How do I arrange rockwool and logs for maximum heat?

We have a 10 year old gas fireplace that has been operating flawlessly. There is no blower/fan unit. After annual cleaning, I've always replaced the rockwool and situated the logs as before using a ...
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1answer
6k 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
67 views

Orange flame on a Rinnai furnace after propane conversion

I have just installed a Rinnai hot air direct vent furnace. After converting the appliance to propane, I adjusted the gas pressures with a manometer according to the manufacturers instructions. The ...
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1answer
197 views

Floor heating is not as warm as I was expected

I've just moved in a one-room flat which has floor heating. I thought that floor heating would be enough but it turns out to be a disaster. The room is not heating as a normal room with a radiator. I ...
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0answers
59 views

Moving or closing cold air return

Here is my current situation: There used to be a wall running between two rooms here; with a heat vent on the top side room and what looks like two cold air returns on the other. The issue is, with ...
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1answer
29 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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1answer
23 views

Amana furnace discharge vent seems clogged

My furnace starts out very slowly trying to put out hot air maybe 2 to 3 hours. I think maybe my discharge vent may be clogged but its on a slippery roof and about 30 foot of PVC so how would I clean ...
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3answers
656 views

Efficient whole house heating on a budget. Electric baseboard?

Here's the question, read below for the back story and details. 1100SF row home shell. LNG and 200A Electric service but at the moment leaning towards all electric. Considering upfront capital, long ...
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2answers
59 views

Stop pipe from banging without removing floorboards

We have a pipe that bangs for a while right when we turn the heating on. I managed to isolate where the pipe is (under the floorboards on one room), the problem is that I can't lift the floorboards ...
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1answer
38 views

Diagnose cold radiator

I recently moved into a new place which has two floors. It is heated with hot water and the heater gas-powered heater is in the lower floor. There are two radiators in the upper floor that stay ice-...
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2answers
179 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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1answer
32 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
132 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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4answers
101 views

Wiring 240v where 12/2 wire using a 20 amp circuit breaker is present

I have a 20 amp breaker that is providing juice to the new outlets I installed in my basement. I would like to put a space heater in the three rooms. The space heater allows for (1000/1500/1600W, 120/...
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1answer
141 views

How can we prevent the upper floor in a split-level home from getting too warm?

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. Down 6 steps from main level to family room and from there down ...
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1answer
56 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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0answers
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Can I calibrate this thermostat? (Cadet brand, 240V)

My thermostat operates but seems to be badly calibrated. It will hold temperature, and you can adjust that temperature, but its not the temperature it says on the dial! It goes much higher than the ...
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2answers
248 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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2answers
10k views

The 5 amp fuse on my AC/Heater control board blows when I put the setting to heat

The 5 amp fuse on my control board blows as soon as you ask for heat. With a good fuse in the AC work fine and you can switch the fan from Auto to Fan on with no problem. As soon as you request heat ...
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2answers
1k 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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1answer
53 views

2 Thermostats one furnace

Is there a way to have one zone at a time calling for heat? i have 2 zones an one furnace temp is house ok if one stat calls for heat but when they both it takes forever to heat house
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99 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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