Recent content by jmfberks

Would it matter that the bypass goes on 15mm pipework on a section of the heating system that is essentially an extension?

I think when the loft rads were put in they tee'd off the main flow and return just above the boiler. So the tee one way goes to the first floor rads and the other tee goes to the loft. I think the flow to the loft is all 15mm plastic. Problem on the 15mm?

@oldbutnotdead many thanks. I emailed Worcester and they've just come back and said 1-2 meters. I've asked if 3 will be ok. Does it matter where on system the bypass is fitted? Like I said loft seems the easiest place to access. Could probably get to 4 meters also.

Worcester 37Cdi. Manual only says "An automatic bypass may be required, (downstream of the pump), in order to maintain the minimum flow-rate through the appliance."

Hello. I have fitted smart TRVs to nearly all my rads. However, when only 1 or 2 rads calling for heat then system noise is quite loud. I've been advised bypass valve will sort out noise and avoid me having to leave one rad without a TRV. The easiest place for me to access is directly above...

I have a similar problem now. PIn has very little movement but some, so valve wont fully close. I've tried gently tapping, WD40, pliers to wiggle pin, but no good. Anything else I can try?? Photo attached so you can see what valve it is.

I managed to do this. Turned out I hadn't been completely undoing the silver ring. It got to a point when I needed a wrench to undo it completely, but thanks for all the helpful comments.

Replacing with a Smart TRV. I've done my other valves just not this one!

Still not able to remove. I don't want to damage it!

Hello. I'm trying to remove the head off a Comap TRV. I have undone (anticlockwise) silver ring, but I can't pull the head off. I don't want to apply too much force, or is this exactly what is needed? There is no magic pin to push is there?