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no heat to down stairs radiators?

i have put a new radiator in downstairs and now am having trouble getting any heat to all the downstairs radiators. upstairs is boiling.i turned upstairs off and bled downstairs ( over two days worth of bleeding )and they came warn until i turned upstairs back on then they went cold again. help!!!!!!

jif
February 2009
Heating, Home Heating SystemsRadiators Heating No Heat
Find the circulating pump and increase the speed.

Turn up the thermostat control on the boiler by a notch.

Balance the radiators i.e. close off the outlets (lock shield valves) a bit on the upstairs rads and open them up a bit on the downstairs ones...see...

http://www.miketheboilerman.com/balancing.htm

so that the available heat is being shared more equally between upstairs and downstairs.

Peccavi
February 2009

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Downstairs Radiators Cold - Heating Help