Questions tagged [boiler]

The boiler is used in a central heating system to heat water that is pumped through pipes to radiators within the home.

For more general questions, see , , and

Related components include:

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How do I identify the C terminal on my HVAC?

How do I identify the C terminal on an HVAC, furnace, or boiler? If the terminals don't have a screw labeled C what should I look for on the wiring diagram? What steps should I take if a wiring diagram cannot be found or if it indicates that a C…
BMitch
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What's the most energy-efficient way to run a boiler?

I have an electric boiler equipped in my house, and also a timer that make me schedule the time in which I want to turn on the boiler and heat water. I am looking for the most efficient way to run the boiler (i.e. reduce the boiler's electricity…
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Who should I contact to remove an old boiler from my basement?

I had a boiler fire. When I replaced the boiler, I kept the old one around for insurance purposes. Now it's time to get rid of it. It's got a good bit of steel in it, and still has a couple of steel steam pipes attached. I wonder if it has any…
ThisOldDude
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How safe is having my boiler in my daughter's bedroom?

I just moved into a new house where the 10 year old boiler is located in the bedroom where my 3 year old daughter sleeps. I'd like to get an idea of how safe/dangerous this situation is. Could the boiler explode? Could it create a fire in the house?…
drake035
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Why do the radiators in my home heating system get extremely hot?

I have a standard British heating configuration at home - there is one gas heater that provides hot water both for the boiler (and bathroom etc.) as well as for central heating. There is a small electronic device where you can set if you want to…
Grzenio
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Can I have multiple heating zones with a combination boiler?

I bought my first house in December and one thing I've noticed over the winter is higher than expected gas usage which I'd like to try and get down if at all possible. The house is a three bedroom (two plus box room really) semi-detached UK house…
Duncan
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Where do I connect my C wire from my thermostat when there are two transformers?

I have a Laars gas boiler that has 3 heating zones. I want to replace the old mercury honeywell tstat on the 1st floor (heat only) with a newer honeywell RTH9580 wifi model. I've taken pictures of my entire system, labeled the wires in the pics to…
Evan
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Is it necessary to connect a boiler and gas meter to the main fuse box?

We are getting a new kitchen fitted. An electrical survey has been carried out by the compnay installing kitchen. they have said that, our brand new and recently fitted, boiler needs a earth wire running from itself to the fusebox. As does our old…
NimChimpsky
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Is storing hot water over 140F a regional requirement?

It seems to be "common knowledge" that to help prevent Legionella, hot water tanks/heaters should be set at 140F. This temperature is enough to cause terrible burns and scalding so devices like thermostatic mixing valves are also commonly…
JPhi1618
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Should we turn our oil hot water heater off every night?

My husband and I are considering shutting off our hot water heater from 8pm to 8am every night to save on energy. Is such a time frame long enough to create a noticeable difference in our oil bill? We already know it is effective to shut it off if…
lanan
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Is it possible to recover waste heat from a boiler?

I did a google search and came back with industrial products, but no residential prosucts. I have a System 2000 boiler and hot water tank. When the furnace is firing, the temp of the exhaust through the flue is around 400 degrees. That seems like a…
Jason
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Why does hot water only run for 30 seconds in bathtub?

In the bathroom of this rental is a tub with a shower diverter. It's an older setup with a hot & cold faucet and a center valve (one direction diverts to shower, the other to the tub faucet). If I turn on only the hot water, I get hot water for…
GeoNOregon
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Can baseboards be used in one pipe steam heating system?

I just switched to natural gas and had a new Weil-McLain steam boiler installed. (I originally had an oil boiler with steam heat.) It is a one pipe system and I have the old style radiators, except for wrought iron baseboards in two rooms (main…
Doreen
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What could cause my boiler to provide hot water, but not heating?

My boiler kicks in when the thermostat asks it to, but when my room thermostat asks the boiler to fire up, nothing happens. My room thermostat clicks on, and lights up so I think it can tell the temperature of the room. Please can anyone help with…
Craig
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Gas combi boiler - left running constantly in cold weather

I've a gas combi-boiler that is generally working fine, but we're getting some seriously cold weather here at the minute (for us anyway) and I've had the odd problem with the boiler starting up when it has got very cold. We're going to be away for a…
Paddy
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