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I apologise if this has been asked before. My mum lives in a three bed semi. This semi had a street door on the side entering in to a small hallway. A few years back a small porch about 4m2 was built on the side with the entrance door turned 90 deg to face the front off the new porch. Now she...

My apologies if this has been covered before but I have searched and could find no reference to this question before: We live in an old listed cottage and are having a new heating system fitted, (at present all we have is a new just fitted wood burning stove with back boiler). This heating /...

Try turning the pump down, and check that all gets hot and works OK. 10 mm is quite a small bore and trying to run the pump too fast will cause back pressure and lead to premature pump failure, the pump will be working hard for no benefit.

Thanks very much for your advice, I drained some water from the system and the water level did drop in the tank, so no blocked pipes at least! I then drained down the whole system and refilled it and put in some fernox descaler and sludge remover. Will leave it running in the system for about 1...

Turning the speed down from 3 to 2 will help a lot with the noise, but like said before it depends on the size of the pipework, and amount of pipe. It is quite common to get a noise like a harrier jump jet taking off with a grundfos pump set to speed 3, when the heating switches on! Also, you...

I have a gravity fed hot water/ heating system in a standard three bedroom two story house. The header tank is in the loft, an ideal standard wall hung boiler is fitted downstairs. A grundfos pump, three way valve, hot water storage cylinder all stored in the airing cupboard upstairs. The...