hi their. i have not longed passed my gas safe test and about a year fully qualified.
i am looking to install a combi into my flat, i have a back boiler just now and would like some advice on how to installa a combi into original pipework.
i would like to know what is best to do with the zone valves and pump. obviously hot water cyclinder expansion needs to be blanked and the new hot teed into the hot pipe work. gas upgraded to 22mm pipe. cold teed into cold,
do u just take back boiler out and blank pipes. remover pump and valves and comment straight through.
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