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View Full Version : Causes of boiler and some rads coming on when switched off

andrewhuet
Nov 23, 2010, 01:51 PM
massplumber2008
Nov 23, 2010, 04:49 PM
Hi Andrew...

Do you have a steam boiler or a forced hot water boiler? How many zones (same question as how many thermostats do you have)? Let me know, OK?

Mark