Re: Air bound heating system
Posted by hj on September 13, 19100 at 09:20:24:
In response to Re: Air bound heating system
A steam system would not have any air traps in the piping or it would never have worked, therefore your converted system should not have any either. The only air that has to be released is in the radiators and they each have a vent on them. The water pressure in the system has to be at least 12# or enough to get to the highest radiaator and have about 5# left over. You will know if you have enough pressure if the water will run out of the highest radiator's vent.
: I recently purchased a house with a 2 zone forced hot water heating system. The house was originally heated with steam heated but was converted to forced hot water servral years ago. Heat is provided by circulating hot water through the existing steam raditors.

: One of the radiators needed to be moved during remodeling, which was accomplished with little trouble, but now the system will not provide heat to the house because air was introduced when the radiator was moved.

: I believe to purge the air from the system it must be 'charged' with water to a certain PSI, the curculator turned on and a drain opened to allow air to escape. I know these steps may have to be repeated several times until the air is removed. I have seen to done, but I do not remember the exact steps. Can some outline the steps, in order, so I can restore heat to this building.

: Thanks!!




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