Winterizing a oil fired hot water boiler

Old 07-27-08, 10:02 AM
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Winterizing a oil fired hot water boiler

Hello! I am looking for advise on winterizing a oil fired hot water boiler . While I am not intending to shut down the system completley, I would like to keep it as low as possible when the house is not in use ( most of the winter ). The house is in a rural area of Pa. so there is also the chance of an occasional power failure. I think I have a pretty good handle on winterizing the boiler itself, but the domestic hot water also comes off the boiler, so I can't use boiler anti-freeze in that zone. Any help would be appreiciated, THANKS!
Old 07-27-08, 05:36 PM
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Domestic water

I suggest you drain & blow out the domestic lines (hot & cold).

When one adds glycol to a heating system, the feed water should be turned off. The turning off of the feed water can lead to a low water condition & possible boiler failure unless protected by a low water cut off switch.

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