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Re: boiler water temp

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Posted by HeatPro on September 08, 2004 at 15:07:01:

In Reply to: boiler water temp posted by marc on September 08, 2004 at 10:19:21:

: from what I understand, the colder it gets the warmer the water in the boiler has to be.
*** Correct, as the radiation in the rooms has to give off enough heat to match the heat leaving through the walls and other surfaces as it gets colder.

So I am guessing a boiler has an adjustement valve in order to set the temp of the water heated by the burners right ?
*** Bad guess. Actually, as the thermostat senses that the room is getting below its setting it turns the burner on to make the water hooter so the radiation can give off more heat. When the thermostat is satisfied, the water gets no hooter. therefore the water temperature rises as the weather gets colder.

: I know there are some outdoor sensors for that but my boiler is not equipped with such a device. To what degree should I set the burner to raise the temp of the water to?
*** Don't bother, the thermostat on the wall does that for you.

: I live in Quebec, Canada so it gets cold in winter. I guess I could adjust the temp depending on the wether (warmer in witer than in fall)
*** If you don't have a thermostat then run over to the burner and get it to fire somehow; but most folks just let the thermostat do that. In my home, I don't have a thermostat, so I use an outdoor reset control and let the radiator thermostats in each room handle the room temperature.

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