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steaming faster than condensate can return?
Just had a new weil-mclain EG-30 steam boiler installed. After the contractors skimmed it and had it steam for 15 min they left and called the job done until they come back in a month to check it and clean it some more.
Here is what I noticed. The next day after install I looked at the guage glass and it was completely filled with water. The boiler was cold at this point. This seemed odd so I flushed some water out to get it to the middle of the glass. I tested the boiler yesterday. Started with a cold boiler, water line at middle of gauge glass. Bumped up the thermostat to 75 to get the cycle started. Temp inside the house was 72. As the boiler started to steam the water level in the glass slowly started to drop. 15 min into the cycle it was only about 3/4 from the bottom of the gauge glass.
Does this seem to you guys like the system cannot return condensate fast enough to keep up with the steaming boiler? If so I am concerned that when the boiler starts cycling regularly during the cooler season the low water cutoff will kick in and trigger the auto feed which may overfill the boiler. I had in the contract that the boiler would be installed to manufacturer specs. In the manual it states that a reservoir may have to be piped to rectify this type of problem.
Any advise appreciated.