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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Why does the pilot light keep going out on my natural gas boiler?

The boiler lit and ran the other day, but now the pilot light was out. I could hear a hum at the control. I lit the pilot light, but when I no longer pressed on the valve, the pilot light went out right away. Is it a dirty sensor? What can I do to…
Jon
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What is this box attached to the back of the house?

The house was constructed around 2000. I can't find any kind of identifying markings, and it's in the back of the house above the boiler (not near any incoming utilities which are in the front). It's roughly the size of a faceplate and about an…
rtaft
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Why do some multi-zone heating systems have multiple circulators?

In a lot of photos I've seen here and elsewhere of hot water home heating systems with multiple zones, each zone has its own circulator. In my two-zone system there is one circulator, with a zone valve on the feed to each zone and a common return…
jay613
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How can I regulate pressure to a BAXI LUNA 240i boiler?

I need to increase the pressure to the boiler, how should I proceed? I checked on YouTube and found a couple of systems but they do not apply to my model (at least not at first sight). Some pics here (click for full size): This boiler also feeds…
Gabriel
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What is the proper way to drain a boiler's expansion tank?

The expansion tank is supposed to have some air in it, but I'm guessing that mine doesn't. Let's suppose (i.e. I'm making this up in the hope that someone will correct me) that the tank should be half full of air and half full of water. If I just…
Bill Nace
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Is there a way to put Taco zone valves in a closed position?

The Amtrol expansion tank on my boiler needs to be replaced but the installers did not include an isolation ball valve. I can close the returns, but the water will still drain down from the upper floors of the house unless I can close the zone…
mr blint
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How to determine how many gallons of oil your oval tank holds?

I'm not sure if my tank holds 250, 275, or 300 gallons. Is there a way to determine the size? The tank is oval shape and 60" X 40" X 27".
Jay Prall
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Should my boiler be serviced annually?

I have a oil-fueled boiler that provides steam heat in the winter and hot water all year. Should I have it inspected and serviced annually? If so, what should such a service entail?
Vebjorn Ljosa
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3/4" compression coupling leaking for alpine burnham U.S. boiler

My 3/4" compression coupler, which is attached between the alpine burnham boiler's condensate trap stub and the pvc pipe that takes condensate to the neutralizer is leaking. I replaced this compression coupler with a new 3/4" COTS coupler hoping the…
Vivek
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What could cause my boiler to ignite 3 times then goes off?

My boiler ignites 3 times then goes off but the boile people came round and said it was the switch but after they went we turned the switch on and it worked but it goed on for like a minute and goes off i dont know what to do? We got a new board put…
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How to change water filter if the only valve is before the boiler?

How can I change the water filter if the only valve to close the water supply is before the boiler? If I just close the valve and unscrew the filter the hot water from the boiler will flow back? Is this the standart procedure or is there some way…
roman
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Should my boiler be warm to the touch?

I was lightly dusting my boiler yesterday and it was quite warm to the touch. The boiler is around ten years old and is tank fed. Is it normal to feel warm?
Terry
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Shut down gas for heat boiler but did not shut down electricity

new to this house, didn't see the shut off switch when i shut down boiler two months ago. now i have found what looks like shut off switch, have I done any damage to the unit?
paul
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need help with completing Zone, Thermostat and low pressure wiring for a Alpine Boiler ALP150

i have completed most of the connections to the boiler expect for Zone values, Thermostat and low pressure monitoring. i need help with understanding if i need to purchase a 24v transformer ? and how to serial connect the wiring with regard to…
leka
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Can a gas safety check be carried out when the boiler will not light?

My gas safety check is due and my landlord has said it has to be done on Saturday I've had issues with the boiler not lighting for a long time, but usually if it is left for a while it will eventually work, however, since before Christmas is has…
Gen
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