No bleeders on baseboards

[Justin Lavell]

Is there a trick to bleeding the air from a baseboard heating loop that doesnt have any bleed valves? The pipes are routed up over a door (in the wall where there is no access) and also go up one story above the ceiling (where there is access.) Is it possible to get the air out of the line by flushing it from the basement, or must there be a bleeder valve somewhere in the loop?

[Erik DonaldsonParticipant]

If there is a valve on the line at the boiler, and a hose fauce just before it, then shutting off the valve and running water through the hose valve will move the air out of the system. However since heating new water causes air to be released from the water, it will accumulate at the high points again unless you have an effective air elimination system at the boiler.: Is there a trick to bleeding the air from a baseboard heating loop that doesnt have any bleed valves? The pipes are routed up over a door (in the wall where there is no access) and also go up one story above the ceiling (where there is access.) Is it possible to get the air out of the line by flushing it from the basement, or must there be a bleeder valve somewhere in the loop?

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