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Can anyone advise on this? I am renovating a townhouse in London to include a new kitchen, 2 bathrooms, basement extension + moving two stud walls. Total cost likely to be c.120k. I don't have time to manage the project myself, and have been quoted a PM fee of 15% of the contractor costs...

Can anyone advise on this? I am renovating a townhouse in London to include a new kitchen, 2 bathrooms, basement extension + moving two stud walls. Total cost likely to be c.120k. I don't have time to manage the project myself, and have been quoted a PM fee of 15% of the contractor costs...

I hi all I have a Keston 80 and have had problems with the burner igniting only briefly before cutting out, and going through the whole start sequence again and again, never remaining lit for more than a few seconds. i have discovered that if i remove one of the air hoses to the APS, it...

I have a Keston 80 that runs CH and HW via Honeywell zone valves and two Grundfos Selectric pumps. All have worked correctly in the past. Now, when the controls call for heat, the valves open, pumps come on, boiler blower comes on, followed finally by the boiler firing in the cylinder and...

I have an OSO unvented HW tank heated by an immersion heater and/or a gas-fired Keston 80 boiler. This morning I found hot water gushing from the PRV on the tank after the HW had been heated by the immersion heater (not from the boiler, though I need to check to see whether the zone valve for...

I have a Keston 80 running two CH loops (rads on primary, underfloor on secondary) via two Grundfos pumps and two Honeywell zone valves. The primary pump is in sequence with the secondary one, and they are separated by the secondary zone valve so that unless the secondary zone valve is opened...

I have a Keston 80 boiler that fires CH and HW. Burner fires when either HW and CH are called for, but water does not heat. CH gets up to temp fine although rads do seem excessively hot, and the burner seems to switch itself off and on again every couple of minutes whether or not the...

Hi all - hope someone can help me here! I have a CH/HW system fired by a Keston 80 gas-fired boiler. There are two pumps (Grundfos Selectric), the first of which is situated immediately outside the boiler (the second is on a different part of the system and relates to the underfloor heating...