blocked radiator

[johnscales]

Hopefully it's not that then. I mightn't miss a 1er too much at the mo but I wouldn't think myself experienced enough to fit it and getting it fitted by a pro is no doubt going to add to the cost

Cheers

 

[JohnD]

if you can drain the system and do simple plumbing, it is not dificult to fit. It goes on a 22mm vertical return pipe to the boiler, it comes with two right-angle valves so the water goes in and out of the canister, and you periodically shut the valves and unscrew the lid, with a powerful magnet attached which traps the circulating black oxide particles. You take the plastic sleeve off the magnet and scrape or wash off the accumulated sludge.

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[fine tune]

make sure the heating is turned OFF when bleeding the rads . some rads will sometimes suck air in when pump is running , a common mistake to think the pump needs to be running to push the air out .