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Oh dear, beginning to get worried, I ll take a picture and try and upload it paul

Sorry the RF stats are controlling the two motorised valves. Also last night upstairs zone was on , with most of the rads upstairs off with TRV turned down. Zone downstairs was off. When hot water tap turned on in bathroom the rad on in bedroom room started to gurgle briefly. When the same rad...

System Boiler Bosch greenstar CDI 30, twin coil tribune 250 l unvented tank, two RF stats one linked to upstairs flow and dwnstairs flow. One return linked to both upstairs , dwnstairs rads. Rads old school column plumbed flow top , bottom return ( although one has been plumbed flow bottom by...

Thks Softus, no pumps and I dont think any zone valves. Should I get them fitted ? paul

Hi, had new bosch bolier unvented tribune cylinder instsalled with 2 rf thermosats, 1 upstairs , 1 downstairs. Old stone house, so was plumbed with one return and 2 flows as no oom for 4 pipes. however tonight with stat off dwnstairs some rads still on ?

Cast iron rads have been plumbed flow top , return bottom , so would seem to make sense to plumb boiler same

thanks bb, will give it ago paul

JD 250 L HW tank has a tapping as standard, which I dont need as bathroomsand kitchen close to tank paul

The tank is directly below the shower. System plumbed by G3 , and he is coming back end Jan to plumb a new bathroom with walk in shower. Not sure what a secondary circuit it? has not been plumbed with one, is it necessary if bathrooms and kitchens are all within 6 m of tank

erm not sure now , the secondary return will be capped if not used for the shower, the kitchen and 3 bathrooms are located near the tank, shower normal thermostatic but with two shower heads which can be on at the same time. So is it yes or no ? paul

thanks, will leave as is and not plumb parallel

thks ht, forgot to mention that the plumber , plumbed in the bottom coil to the boiler by mistake, would it be worth in this case getting it plumbed in parallel, getting it swapped to the top coil or leaving it as it is ? paul

Hi Thanks for all the advice, did mean from tapping, will plumb in shortly

Hi, just had a twin coil Tribune 250 l unvented cylinder fitted, with a view to fitting solar panels sometine in the future. Would it be worth in the meantime connecting the two coils in parallel to the boiler ?

Thanks Mike, does this mean if we use the secondary return for the shower and HW is drawn off elsewhere , that the pressure reducing valve for the cold main would then allow increased mains pressure to compensate for both the shower and other draw off. Paul

Hi Ive just had a unvented 250 l cylinder fitted, it has been suggested that I link the secondary return directly to the shower in bathroom just above the cylinder ,is it worth it ?