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Ed Pawlowski[_2_] Ed Pawlowski[_2_] is offline
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Default gas boiler -- supply and return


"RogerT" wrote in message
...
I own a small building with 3 apartments and 3 separate gas boiler hot
water radiator heat systems. Each boiler has a circulator pump that is
attached to a pipe that goes into the side of the boiler about half way
down. Another pipe comes out of the top of the boiler.

I am assuming that where the circulator pump is located is the return
water line that goes back into the boiler and the pipe coming out of the
top of the boiler is the supply/hot water line that sends hot water up to
the radiators to supply them with heat.

Is that correct?




That is the usual setup. To be sure, when the system has been down for a
time, turn up a thermostat and put your hand on the pipe. You'll feel it
get hot as soon as the water circulates.