Questions tagged [heat]

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Choosing Where to Place Forced Air Wall Heaters

I have a small home ~800 sq ft in a mountain climate that gets quite cold in the winters (10s-20s F in the day in the winter). I already have a pellet stove but the other existing heat comes from two ...
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1 answer
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What is an effective method for reducing heat from a bitumen roll roof?

I have simple bitumen roll roof with additional insulation, no air pocket space, no nothing and heats up a lot in summer. I have been considering either heat reflective paint or installing solar ...
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0 answers
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Need way to Vent Heat out of Vaulted Ceiling in top floor Condo in Colorado

I live in a top floor condo with a vaulted ceiling. The high vertical wall of the vaulted ceiling backs onto an attic area accessed from outside the condo. There are NO vents and 2 poorly working ...
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6 votes
3 answers
2k views

Insulating a wooden shed to provide strong heat rejection

I'm getting a large new shed built in my garden and I'd like to insulate it to make it a bit more comfortable to work in. The shed comes with stud framework on the walls, so my plan is to use OSB to ...
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2 answers
133 views

Why do wirenuts overheat & melt?

A normal blue wirenut is shown in the bottom left corner. The large red wire powers a heat pump evaporator and its fan. The arrow points to a melted blue wirenut. What cause wire nuts overheat?
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Thermostat running past set temperature of heat

Heat keeps running after it reaches set temp. I have replaced the system with a new Honeywell (non-programmable) Thermostat. (I even tried that twice). Replaced the Fan Relay as well. Maintenance ...
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2 votes
0 answers
55 views

How to wire a 2 stage heat pump with gas furnace

I bought a new house last year and this is the first winter I've been in it. It have a gas furnace that we've been using as the only heat source. The other day, I went to clean the condensor coils and ...
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1 answer
24 views

Honeywell hz322 heat pump with aux heat

I get heat and aux separately but not together. I checked the 322 and it's calling for both, but only heat light is on. I only have w1 wired... Is this the problem? I see is says to tie w1 and w2 ...
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Popping sound coming from duct

Whenever the furnace is turned on or off, there’s a spot right below my bedroom floor where vent is, the duct would make a popping noise for about 5-10 minutes. Unfortunately the duct is not ...
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1 answer
52 views

Screwing in to an HVAC vent

I'm trying to mount a sliding barn door in a room. It has five holes in the rail for the lag screws to screw in to. One of the five holes is directly over an HVAC vent that leads to the upper floor - ...
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0 votes
1 answer
58 views

Window Insulation Kit, how much temperature increase?

I am looking to buy a window insulation kit. How much temperature increase would it cause? I live in an area where it goes 45 degrees Fahrenheit during the winters. https://www.amazon.com/3M-Indoor-...
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1 vote
0 answers
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Best material to protect concrete outdoor retaining wall from BBQ/pizza oven built onto it

Note - I've read Should I insulate my pizza oven between the firebrick base and concrete? and Will a slab poured with mortar stand up to service under a pizza oven? but they aren't rerally what I need....
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1 vote
1 answer
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Can I slow the formation of cracks in a furnace by running lower temperatures?

Just had a tech out today. Gas pressure was up way higher than it should have been so he reduced it (he said it was a 7 something and it should've been 3.4?). CO detectors not going off but they are ...
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1 answer
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How to get a refrigerator tight to the wall with baseboard hot water heat.?

Complete overhaul of kitchen. We have 12’ of baseboard hot water heat. We are having a toe kick to re-route the pipe for the cabinets so they will be tight with the wall, but what can we do to to the ...
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1 vote
0 answers
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Want to add a C-wire to a ClimateMaster Compact Heat Pump in combination with a Nest learning thermostat

My existing Nest learning thermostat, 3rd gen, is draining the battery really fast when use the wifi. I have a ClimateMaster Water Source Heat Pump. It has only four wires. I run an extra wire to ...
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31 views

Heat pump running on Heat and fan or Cool and fan

We just had heat pumps installed. I know that you cannot have the heat and the cool going at the same time. But can you have a head in fan mode and another head in heat or cool mode? Sorry for the ...
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64 views

Blower fan comes on once a week

I have basic two wire thermostat, one for power on for neutral. I only have central heat, not air. My blower fan kicked on the last two sundays, but itself, but not today which is sunday. It only ...
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1 vote
1 answer
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Can I put a box fan in a chimney to help circulate out hot summer air?

I have a classic brick chimney for a wood fireplace only (i.e. no hot water tank or other things sharing the stack). In peak summer heat, the interior of the upstairs is well above the exterior ...
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1 vote
5 answers
127 views

Solar? Lots of room for panels, so should I ditch oil? [closed]

First post for me. Long time reader. I'm in south west Massachusetts. I just bought a new two-story home. 9ft ceilings. With garage, it is about 2,600 sq ft plus 2,000 square feet of garage space (...
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I'm using 2" EPS below grade insulation for radiant floor heating, Do I need a poly vapor barrier on top?

In addition to 2" of EPS do I need a poly in a radiant floor heating system
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0 votes
1 answer
285 views

Should I insulate my pizza oven between the firebrick base and concrete?

I am building a pizza oven for my garden. The 'table' will be standard red brick and concrete slabs to form the work top. On top of the work top, I was intending to lay a layer of firebrick, and place ...
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7 votes
1 answer
1k views

second window for toilet on rented apartment

I rented my apartment in the summer, now with the cold weather starting (Australia). I noticed how cold the toilet window makes the apartment, there is zero isolation, and is basically a window with ...
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0 votes
3 answers
118 views

Does the amount of light Blackout Curtains allow in reflect on its heat reflecting capabilities?

I bought some panels from the store today as my room upstairs lets in so much heat during the Summer. Previously I had a Tan colored curtain up for years that was 100% Polyester on the Face and the ...
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Frigidaire Stove Model FEF368GSA range and oven both no heat lights and clock work

I am in a mobile home that was built in the 1970s. Someone flipped the circuit breaker to the electric stove. Now the clock and oven lights work but no heat from any of the burners or oven. We ...
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0 answers
58 views

How to install a thermostat for electric heat?

I have a 240v electric heat in my house. I’m trying to switch my thermostat from an old Mears to a new Mysa smart thermostat. I have six wires coming from the gang box. 1 set is to the heater( load) ...
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0 votes
1 answer
54 views

Trane heat pump compressor and outside fan do not start after being idle

Trane 4dcy4060a in heat mode, after being idle for a while the thermostat calls for heat - the indoor fan starts but the compressor and outside fan do not. initially (a couple months ago) i could ...
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0 votes
1 answer
819 views

Can I use dedicated pool heat pump for heating water in the house?

I'm going to buy a small heat pump dedicated to pools (around 3.5 kW total output). The pump would not be used for 6-7 months a year (autumn/winter); can I plug it into an existing water heating ...
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1 vote
4 answers
518 views

Adjusting Steam Radiator

We recently moved in to a 1934 home with steam radiators. Our upstairs bedrooms are cold compared to the first floor. A room adjacent to our kitchen is generally warmer than the rest of the house. Can ...
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0 votes
1 answer
75 views

Ceiling heat not working right

The ceiling heat in one of my rooms will not come on unless i turn the thermostat up. Once i do that, the heat will not shut off unless i manually turn the thermostat way down. The thermostat clicks ...
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1 vote
0 answers
35 views

An unsteady flame when furnace is warming up

When my furnace has warmed up the house and turns off for a bit it struggles to turn back on. While the furnace is cold I can look into the combustion chamber and notice the flame is acting like ...
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1 vote
1 answer
231 views

How to find source of leak in heating pipes under concrete / glued floors?

Update 2021.01.11 In case this helps anyone - I was able to trace the leak and make the repair in the end. Steps were this: Locate leak as closely as possible by isolating areas of the heating system ...
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-1 votes
1 answer
131 views

Determining what zones are controlled by which thermostat

I purchased a quad plex. We live in the double unit on the first floor and have one thermostat which seems to call for heat in our zone. On the second floor there are 2 units with seperate thermostats ...
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-2 votes
1 answer
67 views

Furnace often hums but not blowing air until resetting thermostat

Having a frequent problem with my furnace where I can hear it humming softly, yet no air is coming out of the registers and the house temperature slowly falls. It seems that this state can continue ...
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-1 votes
1 answer
156 views

Can I add wiring directly to the heating element and fan without frying anything?

I have an LED fireplace that I'm putting in to replace a wall heater. I wired it to run through the wall thermostat, but when the thermostat turns the fireplace on it just turns on the lights, then ...
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1 vote
1 answer
88 views

Installing ductless units in my apartment. What am I supposed to do with all these coolant and drain lines?

I'm installing 3 ductless AC units in my apartment. I know the lines are supposed to go outside and connect to the condenser but there are three coolant lines wrapped in insulation and three drain ...
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0 votes
0 answers
59 views

Heat basement from excess heat in boiler room

I'm trying to heat a basement room using excess heat from the boiler room but it isn't working. I've run two 4 inch flex ducts from the boiler room to the main 300 square foot room at opposite ends. ...
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0 votes
0 answers
35 views

Boiler System heats one room more than all others

I have a two zone older natural gas boiler system. All rooms in the house get heat. One room on the second floor gets hotter than all others. Almost like all the heat is going to that room I don’t ...
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0 votes
1 answer
57 views

Knob Identification

Background: I just moved into a new apartment. The apartment has a heating system unlike my last one. I need help determining the purpose of this knob above one of the radiators along the wall. The ...
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0 votes
2 answers
52 views

Heat pump operation when cold question

this morning it was 23 degrees F. The indoor unit was on and delivering heat. I looked out at my outdoor unit and the fan was not running but the compressor was. I panicked and pulled the quick ...
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1 vote
0 answers
62 views

How best to capture and move the heat from oil furnace stove pipe more efficiently throughout room

In my basement the stove pipe that goes from the oil furnace to the chimney is always hot, so I feel like I should be capturing this extra heat and moving it about the basement. How do I keep this ...
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0 votes
2 answers
451 views

What wiring is needed for a propane unit heater in a garage?

Short version: I need to have a propane unit heater installed for a well-insulated 30'x50' x 14' ceiling garage in northern Minnesota. Should I run metallic cable to 20-amp outlet for a propane unit ...
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2 votes
2 answers
175 views

Is it safe to set my water heater tank to vacation during winter time? What else can I turn off to save heating bills during winter?

Is it safe to turn set my water heater tank to vacation during winter because I am mostly away from my house? I live in Canada. What else can I turn off to save heating bills during winter when I am ...
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1 vote
1 answer
162 views

Replacing old 2-pole line volt thermostats in a 120V hydronic heating system - is this configuration safe and acceptable?

I am replacing several old mechanical 120V 2-pole thermostats each of which controls both a blower fan (which blows air over hydronic coils to push warm air into the room) and a single central ...
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0 votes
0 answers
39 views

heating system backwards?

I have an outdoor wood boiler about 40' from my house. It is piped to a heat exchanger on the water tank, and then to the oil furnace(doesn't burn oil). I think the supply and return have been ...
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0 votes
2 answers
390 views

How to remove hot water baseboard?

I have a room which is getting too hot during winter and I want to disconnect the hot water baseboard in it from the heating system. Problem is that heating system is a loop and room is in the middle. ...
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1 vote
1 answer
71 views

Home Heating Efficiency

See a similar question I posted a few years ago: Heat pump minimum compressor temprature I have a custom built new construction home, but I was not involved with the build process, so I don't know the ...
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1 answer
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Radiant heating with metal rods

Can you run some sort of metal rod through your cement floor and connect that rod to a fireplace so when u use the fireplace it heats the rod and heats your house is that possible?
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0 votes
1 answer
72 views

Is polystyrene safe to use as a wall of a grow box?

I'm building a small 40x40x40 cm grow box that will be used mainly for seeds germination. When operating, it will be completely sealed. My question is: Is it safe to use polystyrene boards as direct ...
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0 votes
3 answers
3k views

Can I use heat gun to remove wall paint?

I have a section of wall in the kitchen near the window where several layers of paint are peeling off. It is an interior wall, most likely plaster over brick. Using a paint/wall scraper will be hard ...
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3 votes
1 answer
960 views

Heat Damage to Laminate Counter-top Near Gas Range

While deep cleaning our new home, after closing, my wife and discovered what looks like some heat damage to the counter-top next to the gas range. The house was fully renovated about 2 years ago, ...
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