I am updating my central heating system currently linked to a 'rayburn'.
I have fitted a 'firebird 90' oil fired boiler. The pipework has been modified.
I have been supplied with Qty 2 'honeywell V4043H motorised zone valves'.
Please can someone inform me where on the system, I should fit these valves? I do not have a layout plan and one would be appreciated.
[b]Help please[/b]. Thank you.