For general questions on heating in your home.

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1answer
56 views

How do I compare furnace models?

I need a new furnace, and I have quotes from two companies, for three different brands of furnace, Carrier, Trane, and Lennox. Both companies have provided the model numbers of the units they would ...
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1answer
50 views

Are hydronic systems set up as loops or ladders, and how can I tell the difference?

My hydronic system has a loop (or ladder) that visits baseboard radiators on four floors. All piping is hidden in the walls. On the attached diagram, squares are windows, red is baseboard ...
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0answers
35 views

Alternative attachment to concrete floor containing pex heat tubes

I am getting ready to finish my basement. The counties "Typical Finished Basement Details" say that bottom plate attachment to floor is with 16D concrete nails face nailed. What are USBC approved ...
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2answers
106 views

What could green covering on a radiator pipe be?

Recently I have discovered the pipe to my radiator is looking a bit weird. From what I can tell, it does not quite look like corrosion, neither like mold. I think I recall there was some green paint ...
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2answers
1k views

What is the purpose of the valve between these two pipes?

I saw an interesting arrangement of pipes and valves in a house I visited. These are hot water pipes, the two vertical pipes connect to a radiator. What is the purpose of the valve between the two ...
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0answers
29 views

What is this heating thermostatic head connection called?

I want to purchase and install thermostatic head for heating radiator valve in my room but can't identify connection type. The radiator itself and valve don't have manufacturer name on it. What is ...
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0answers
11 views

Hot tub heater turns off went both vents are open

My hot tub will turn on if one of the vents to the heater is shut. As soon as I open both the hot tub turns off. Any suggestions? Thanks
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2answers
76 views

Will batt insulation ignite if it is laying against my steam pipes?

I have steam pipes behind a wall that I loosely packed R30 batt insulation against. Is there a possibility that the insulation will ignite?
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2answers
83 views

What type of material is flexible but not too much, water proof, and can tolerate 80°C temperatures? [closed]

The idea is to build an electric pad with an non-coated heating wire (~1.3 Ohm/metter): the pad must be flexible under the bed sheet (like this one) but not too much (to prevent it being crumpled ...
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2answers
139 views

Is this Radiator handle/valve a replaceable part? Do I need to drain the system first?

Perhaps a stupid question... The ON / OFF valve on one of my 1900s radiators does not turn. Pictures below. The radiator is in a permanent "hot" state. Is the "valve" (handle and "small nut") ...
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0answers
25 views

Underfloor heating stops working after 5 minutes

I have recently moved into a flat which has underfloor heating. Yesterday I wanted to test it, but it seems that after 5 minutes of working, it doesn't resume again. The actuators on the manifolds ...
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1answer
25 views

Gas fireplace insert won't stick to marble fireplace

I have a marble fireplace and 2 years ago my gas fire insert fell out, I tried to stick it back in with heat resistant silicone but it fell back out. It is a metal gas insert any suggestions on what ...
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1answer
62 views

How can I improve the directional flow of my furnace exhaust pipe?

This one's for the creative folks. I'm in a condo on the top floor and I have a side neighbor. Both our furnaces exhaust out the back, under a four-foot roof section overhang (sticks out about a foot ...
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1answer
48 views

Retrofitting floor radiant heating under hardwood floors

I am considering retrofitting radiant floor heating into the first floor in my home by attaching the pex to the bottom side of the subfloor from the basement. On the top side of the subfloors is some ...
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2answers
48 views

Heater causing dry uncomforatable air

My bedroom is a bit cool so I started using an electric space heater (that doesn't have a fan). I noticed it makes the air very dry. What's the best way of counteracting this? I was thinking of ...
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4answers
222 views

Is transitioning to all electric heating smart?

I am in the process of overhauling my home heating and plumbing. I bought a 2600sq/ft 1980s Cape Cod in southern Maine on the coast. I've reinsulated the walls and roof and am continuing to make ...
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0answers
84 views

Why would my boiler's pilot go out after the hot water comes on?

I have a Potterton Prima 40B conventional heat-only boiler that was installed in 1999. The pilot light goes out after the hot water comes on. It will stay on if the heating is on, but about 2 minutes ...
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0answers
43 views

Will a modern AC automatically switch between cooling and heating?

Say I set the temp to 23C on a hot day but the weather turns cold eventually. Will it detect later that autumn came and heating is needed? I'm talking about a Panasonic inverter AC.
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36 views

How do I go about finding the correct size hydronic baseboard radiator covers?

I replaced some drywall behind a hydronic baseboard radiator. The original covers were thrown out. The element size is 2.75x2.75. This is bigger than the covers sold at big box stores. I called a ...
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1answer
173 views

Sealing Off Room Vent Question

We put an addition on a couple of years ago. At that time we installed a second HVAC unit to service the upstairs. Our original unit still services the basement and main level. The original ...
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1answer
64 views

Should I add a return or another supply to a large room with only one supply?

I just moved into a new house and I have that one room that always seems to be hot. It's on the 2nd floor of the house with the attic over it. The other 2 rooms on the 2nd floor are always a nice ...
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1answer
60 views

Split system system, power consumption, Australia

Can someone please explain to me how power consumption works on my split system unit? I had a read of the main unit outside and it says: "Maximum input-2.32kW/10.2A" Capacity: "Cooling- 4.40-4.40kW" ...
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1answer
54 views

How can I improve my ventilation throughout my house?

I just bought my house and it stays rather cool. However I've found while painting that the flow of air through the house is limited. My vents are all on the base board/wall if you can imagine. Not ...
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1answer
233 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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0answers
11 views

How to add extra 24VAC wire (C wire) [duplicate]

I have recently bought a Honeywell rth9580 programmable WiFi thermostat. Unfortunately I have old electric heating/cooling system probably from 70's. The system is based on two relays (I guess ...
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1answer
61 views

getting home heat treated for bedbugs - what could be damaged?

So I was thinking about getting my home heat treated for bed bugs. That involves bringing the temperature up to 125 degrees per https://www.abchomeandcommercial.com/austin/pest-control/bed-bugs . My ...
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0answers
37 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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1answer
42 views

What does “8(3)A” mean on a relay spec sheet?

In the specs for this heating controller (http://www.ecr-nederland.nl/files/lae_bediening_ac1-2w_en_de.pdf) the relays have a capacity of 8(3)A (top-right). What does this mean? 8A/3A?
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2answers
50 views

Can I sink a hot water copper pipe into the ground and keep the heating functionality

we are remodeling a our kitchen and the hot water baseboard heating is in the way. We had two ideas. 1. we let the baseboard heating run under the cabinets 2. we cut open the floor and drop the ...
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0answers
34 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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1answer
111 views

Is Solar Heating of Pool worth it? Especially after Time of Use (TOU) electric rates are introduced?

I'm thinking of getting solar heating for my pool. We're in San Diego and the cost would be about $6000. Currently, I don't heat the pool at all as it's prohibitively expensive with natural gas. I ...
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1answer
102 views

Sauna tripping GFCI

I've just finished up wiring an old heater in my sauna. It has laid around in a shed for a decade or so and am wondering if it's spent. It powered on fine and heated for about 5 minutes until the GFCI ...
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0answers
21 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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1answer
83 views

Should I buy or hack a 240v remote controlled thermostat?

I'd like to buy/easily create a thermostat that remotely controls a 240v / 10A switch. At a minimum the switch should be on when it's hot, and the threshold should be configurable. Digital ...
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1answer
405 views

Quite high pitched noise in room

When I'm trying to sleep I hear a high pitched, ringing noise. I can only hear it if everything else is quiet. I've considered if this is a medical issue, such as tinnitus, but before jumping to ...
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1answer
50 views

Can I just replace the heating coil in my dryer, or do I have to do the whole element?

My dryer heating coil in my heating element broke in two. It seems like it'll be simple enough to just put a new coil in and be on my way. The part is available and this move would save me about $40. ...
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3answers
140 views

How can I calculate the effects a floor coverings thermal conductivity will have on my heating costs?

We are choosing between laminate and plastic flooring over water based underfloor heating (heat pipes laid in the screed floor over thick concrete). Laminate floorings have a thermal resistance of ...
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2answers
172 views

running a gas line to a gas heater hide do I hide the gas line

I need to run a gas line to a floor mounted gas heater but I cannot run it behind the wall. How do I hide the gas line?
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1answer
20 views

Dual heat zones strongly connected vs setback thermostats

Similar to a question just asked, but i think it's different enough... I have a two-zone forced-hot-water heating system, where each floor is its own zone. The zones are connected by an open ...
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2answers
305 views

Could our electric baseboard heaters be causing soot damage in our kitchen?

We have electric baseboard heat that's about 30-35 years old. Each room has its own unit. We normally keep each unit on 60-62 °F. We only use 3 units: kitchen, living room, and master bedroom. ...
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1answer
37 views

What is the correct Air Flow change per hour for my house?

I recently just got my house air sealed. Before air sealed the Building Air Standard (BAS) was 1.4 now it is 1.2. Based off a 1300 sq ft house. What should the BAS be? Is there a calculator to ...
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0answers
30 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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3answers
2k views

How can I heat up my apartment to kill bedbugs in Southeast Asia?

I have a bedbug problem in my apartment and I want to fix it myself with heat. (I do not want chemicals sprayed around.) Apparently, getting a room to 140 degrees for two hours is sufficient to kill ...
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1answer
78 views

Should I synchronize programmable dual zone thermostats to come on at the same time?

I have two zones in my house and both have programmable thermostats. The temp in the house is set to 18 degrees while I am at work all day, and when I return it is programmed to 21 degrees. When I ...
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1answer
44 views

What type of heating system would you recommend?

I am remodeling an old two-story duplex, opening it up into single dwelling. The existing heating system is oil/forced air and also a coal furnace built into the same ductwork. Unfortunately the ...
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2answers
485 views

Wiring Aprilaire 700 Humidifier to York TG9* Furnace

I've read the related posts, but they don't answer my questions. Please, help! We had contractors installed: * Aprilaire-700 Humidifier with Auto/Manual Humidistat-Control Knob (non-digital) * ...
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0answers
25 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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70 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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1answer
272 views

Best cost efficient plug-in heating devices / radiators

We moved to a 2-bedroom apartment that has baseboard heating devices installed. Our first electricity bill was huge (around $400) and we only used 3 of them and not all day long. Here is a pic of the ...
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1answer
55 views

Is it safe to have a furnaces exhaust pipe facing to the side instead of down?

We have had an issue with our furnace this winter, were snow/ ice gets in our cold air intake and prevents the furnace from Working. My husband turned the exhaust pipe to the side, instead of facing ...