Boiler doctor 247 prides its self on. If it is not selected, the preheat is on and there will be a “quicker response to a hot water demand”, say worcester. Sludge pipe is a pipe that is connected to the boiler i know with the old system boiler a few month ago i had to get a pump replaced and water started draining out from that pipe same when the guys came to put in new boiler water was gushing from it and a pipe slightly higher up in sure it's called a overflow. Clean, courteous, professional.
Added: 2020-05-08 | Category: one