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I have recently had my 2 year old Worcester greenstar 30si serviced. The syphon was quite dirty so was taken out and cleaned. The day after I noticed a drip from the bottom of the boiler. Investigation showed the syphon leaking from where it connects with the sump, trickling down the side...

I'm looking to get a programmable RF room thermostat to connect to my Worcester Greenstar 30si combi boiler. Being a patriotic chap, I'd like to get something UK made or from a UK company. The Drayton Digistat+3RF...

I'm looking for a low-mid priced TRV. Ideally British made. I hear the Drayton TRV4's are highly recommended. But they are a bit pricey at £18 each...

I have to change a few leaky rad valves that tightening/packing the gland nuts hasn't fully resolved. If anyone could be kind enough to fill in the blanks it would be most helpful.... 1. From what I've read, a rad should have a lockshield valve and a control valve. Is this the same on...

Bit of a long lost this one... so hope you don’t get bored :) We've had the pressure dropping in our sealed system for the last couple of months. It's ranged from between 0.5 and 2 bars depending on how much we use the heating. The more the heating is on, the better it seems. The old...

Long story..... but, in short, I'm trouble shooting the pressure dropping in a sealed system. If have turned off a few radiators. If the rad valve is leaking around the spindle, would the water be coming from the radiator side or the pipework side? Or could it be either or both?

I posted over the weekend regarding my Ravenheat CSI 85 condensing combi losing pressure. //www.diynot.com/forums/viewtopic.php?t=202613 I got an engineer round on Monday who really didn’t have a clue what he was doing. I was hoping he could confirm if the cause of the leak was the...

I have a Ravenheat CSI 85 Combi Boiler. The pressure gauge keeps dropping down to between 0 and 0.25 bar. I have read these posts that talk of the Pressure Relief Valve: //www.diynot.com/forums/viewtopic.php?t=83966...