Furnace question

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Old 10-23-05, 09:41 AM
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Furnace question

I live in Maine and have an 11-year-old Peerless oil burning furnace that also heats my water. Recently, now that it's getting colder outside, the furnace will periodically come on for about 15-30 seconds, then shut off. Then minutes later it comes back on and stays on for it's normal water-heating duration (about 3-5 minutes). Why is it all of the sudden coming on first and then stopping after 15-30 seconds? Is this normal, and is it related to colder weather?
 
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Old 10-23-05, 11:37 AM
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Short cycling

Firstly, you have a boiler not a furnace. Ok, off my soapbox.
Your problem could be either the aquastat which controls the boiler temperature or the primary control on the burner. You would have to be able to catch it in the act & be quick with a meter to tell which.
 
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Old 10-23-05, 07:49 PM
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fur·nace(fūrns) n. An enclosure in which energy in a nonthermal form is converted to heat, especially such an enclosure in which heat is generated by the combustion of a suitable fuel.

That's what I got.
 
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