We have just purchased a Worcester-Bosch Greenstar Junior 24
Combi-Condensing boiler and the plumbing merchant said we would need Filling Loop.
However, our builder is saying that we would not need to regularly to up the central heating water? What I don't understand is how th central heating water would be pressurised in the first place without Filling Loop?
I know that larger boilers usually have this incorporated into th bottom of the boiler
-- M.Joshi