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Ok, maybe I have the model wrong. Definitely a Buderus though and it's brand new from 2017/2018. Got someone coming round today to take a look thankfully! For the safety valve, the outlet is just open, no pipe attached. It always has been like that.

This is the black cap thing https://i.imgur.com/h3Rx13Q.jpg There's another pressure gauge next the expansion vessel which stays steady at 1 bar I'm not sure Miracle Seal would work. Whoever built the house used cast iron pipes and didn't insulate them before putting the concrete on top...

We had a new gas boiler (Buderus 500) fitted last year and it's worked very well. We HAVE had a history of leaks but they've all been found and repaired. The pressure never held at 1 bar, it always dropped to 0.5 but stayed steady there. We'd top it up every month or so it would, eventually...

Given some of the decisions taken by the previous owners I would highly suspect 1). However, I'll take some pics of the TRVs tonight and post them

Sigh....great. We have real trouble heating the entire house. It's a pretty big house and quite a few of the upstairs rads rarely get hot enough to heat the rooms adequately so I'm sure it needs balancing. I guess the only option is to replace all the rads then or can lockshield valves be...

Those are 2 pics of one of the radiators in our house, they are all the same model. I want to balance the system as quite a few of the rads never get very hot However, from what I've read there should be some lockshield valves but our rads don't have them do they? Please don't tell me they...

Hi everyone, We have an OERTLI OES 150/152 LE boiler (see the pics below). We ran out of oil last week and had it filled up but the boiler is not firing. From what I've read I need to bleed the boiler to let the air out and get some oil in. However, being about as clueless about DIY as...