balance

Hi, I have an unknown UFH system (not long moved in) that had to have the blending valve replaced due to a leak. I was worried that this would have introduced air into the system so now am looking to refill/pressurise the system (the emergency plumber just did the blending valve and said it was...

We're having a kitchen extension and our plumber has fitted 2 x vertical radiators. They don't have any cold spots but they aren't getting hot. After doing a bit of research on here, I think the system needs balancing (as some of our radiators are incredibly hot!) The issue is, none of our old...