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Mend Firebird Heating System Drop

Losing pressure?

I have oil heating, a firebird system. When the heating is on there doesnt seem to be any drop in the pressure but when i turn the heating on for the water, and when i use the shower, the pressure does drop by about one-two bars each time. I have checked the attic for leaks. No sign. The radiators were bled in December. Please tell me its not a leak that i cant see.

Margaret
February 2011
FirebirdHeating, Home Heating SystemsHeating System Drop

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Firebird Heating Pressure Drop - Help!