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Hi all, is there a minimum size loft cistern for supplying the hot water cylinder? We don’t have a bath now, just an instant shower so only use hot water for a few dishes, hand washing & similar small jobs. Do the regs specify a minimum cistern size please? Ta muchly.

Today our boiler kept tripping the RCD but with no fault code showing, and the engineer found the fault to be moisture around the area of the pcb. Once dry everything was fine. I've never seen this fault and he suggested it could have been rain ingress into the flue as last night was very wet &...

We have a Glow worm 15hxi boiler. Recently it had fault code f5, overheat fault. British Gas engineer changed both thermistors & overheat stat. Following morning F5 again! I reset the thermostat cut out thinking that if there is a fault it will cut out again but heating works fine. Now when I...

I’m removing a fireplace & understand the chimney should be vented by a grille. I’ve also heard of chimney balloons to stop draughts. Is the venting mandatory? Would the house structure be compromised by fitting a balloon and blocking the flue? Many thanks.

I just fitted a new TRV to the rad outlet for convenience and because it’s reversible flow & the instructions allowed it. The rad warms up fine but will it be as efficient as fitting the TRV to the inlet? Do rads with TRVs need balancing? If so can a rad with the TRV on the outlet be balanced &...

Hello peeps. I'm doing a DIY shower & the tray instructions call for a mortar bed on the plywood. As the bottom of the shower tray is flat & it's going on marine ply what's the point of this? Would I build in any problems if I did without it? Thanks

Hello Sparkies, I wish to have more than the 3 on/offs available with the current Drayton 241 programmer. Is anyone aware of a programmer that does this? Alternately is it feasible to connect a second programmer in parallel so they run separately to give up to 6 on/offs? Might there be...

I’m fitting a 1200x800 quadrant shower tray & find marine ply a bit pricey, especially as I only want 1300mmx800mm so would be left with the rest of the sheet. It’s been suggested that WPB or softwood ply with a double DPM covering would be ok. It would of course have the standard mortar...

Hi everyone. My TRVs close off as they should at the required temp setting. But they wait until the room is quite cool before opening again to allow more hot water into the rads. I would prefer it if they cut in sooner and controlled the temp more evenly without such big peaks & troughs...