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Can't see any mention of what types of rads you have , t11's t21's t22's or designer rads etc? How many metres of 22mm out of the boiler before it reduces to 15mm?

always hated restrictor elbows and the pipe on view to the fire. always tried to hide them. restrictor elbows serve a purpose and the associated pipe work is more robust than copper weaving its way over the hearth etc, plus it looks like it belongs there. its the way it used be done. personally...

not that familiar with GW tbh, only done a couple. I would assume that there is a parameter that tells the boiler 'what type it is' system or combi etc. therefore dhw preheat wouldnt come up in parameters as a choice if it was told it is a system boiler? Ive done it myself, was on the phone to...

your boiler can provide up to 24 kw for heating rooms. my general fag packet calcs say thats enough for a 12 room house. keeping the flow temp down is good as is adjusting pump speed to make sure it gets round all the system. have you range rated the boiler? parameter 3 needs to be set...

its struggling to light, bad gas mix, low gas pressure, blocked condensate all possible causes. might be a sticky governor on the gas meter. you need your installer back.

installer has possibly not removed the factory installed link when installing the thermostat.

Council plumber equals Council flat. 2002? New boiler.

Doesn't your rgi know this? Asking for a friend....

Feel each radiator at the bottom in the middle. Any cold spots, rad is blocked. How long was he there for?

Did your installer flush the existing pipework and radiators? If not it could be that your boiler return temp is too warm which the boiler senses and assumes that the heating is warm enough, and, shuts the burner off. They monitor everything electronically and adjust burners, fan speed and pump...

was the rt7 playing up? dip switches are still in factory position. straight swap as mentioned before

QUOTE. I can't raise the height of the F&E tank, unfortunately, it is already right up to roof level. Raising the tank wouldn't make a difference, if anything it would make it worse. IMO. As you would be increasing the volume of water further. I don't think the expansion tank is big enough...

Is it pumping over or is it simply a case of not enough expansion available due to the volume of water involved.? Is the tank big enough? Is it plastic or metal, is the correct ballvalve fitted, is the water level too high in the tank?. Because the wood burner heats the water hotter than the...

Is this a new installation or one you have added to? Ie the thermal store or the UFH. Zones.

Chimneys cause draughts by their design, thats how they work. Stop the draught, you die.basic combustion triangle, fuel oxygen heat. How efficient is another matter. Coal fires were great, no double glazing, gaps roumd skittings etc. Less colds coz people sneezing across the room, all the snot...

Turn your stop tap off before you go to bed, if the noise still occurs it's vibration on the water main, shared supply maybe? Neighbours might be heavy sleepers or deaf. Change toilet ballvalve washer, they harden over time. Change loft tank ballvalve(s) Operate kitchen tap and basin tap when...

Check pump for blockages or restriction and any pump valves.

Copper olives if compression, and, check that the factory made electrical connections are tight as well as your own.

beware of any payments from the government offered. ask anyone with solar panels etc.........

A customer was telling me she avoids it! Ah well!:whistle: