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well mclain

st heat
st heat Member Posts: 28
has any of you great wallies ever had a noise problem with w.m. 688 oil fired steam boiler. we just installed a new 688 boiler as per manual . every thing went fine no problem then we went back 2 weeks later to check and couldn't help but hear a steam hammer noise in the boiler itself at the very beginning of steam production but before any pressure. the burner is a carlin low-high -low. The boiler has 2 tankless coils and the boiler maintains 180 all times . it is piped using 1 5" riser and header at the correct height and a 2-12" equilizer.gravity wet return.the water level looks ok.any help would be appreciated. st heat


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