Just examined my hot water cylinder prior to draining the CH, and discovered it's primatic... this doesn't overly bother me because it's being replaced in a week and a half with a combi boiler, but before that I need to replace my rad valves with thermostatic ones.
Is there anything I need to be aware of when draining down the system? I realise I need to close off the rising main feed to the header tank - is there anything else? Similarly, is there anything special I need to do when refilling. I realise adding inhibitor is a bad idea... A google search only turns up someone with a horror story about draining one, but no advice...
I have a back boiler - the front is marked Baxi Bermuda G2. The sole control is a knob with 0,1,2,3, lightning symbol, cross symbol. Presumably if I turn off the power and gas supply to the boiler when draining I will need to relight the pilot light afterwards. Does anyone have a clue how I am supposed to do this (no manual anywhere, and no one to ask - the previous owner is dead...) I can take a guess that turning the knob to lightning symbol might accomplish something, but it would be nice to have a clue in advance :)
Thanks for any advice!
Ben