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Cheers. I'll take some photos later. It is presumably a long-standing issue as there was a bleed key left in the bleed valve of the air-gathering radiator when we moved in.

Extended 1930s Semi. 1970s heating Gravity HW/Pumped CH (microbore). Potterton Profile boiler I've modified it to a "C-Plan" (valve is not blocking F&E pipe) wired to allow the HW and CH to retain their separate setpoints. The Pump is located in the floor cavity in the room immediately...

It was the building regs recommendation that I read. I'd have thought so too, but I was looking for other experiences/opinions. Cheers

Hi, I'm looking at installing underfloor insulation: 1930s red-brick house Suspended floor with crawl space Good air brick ventilation 100mm depth floor joists My intention is to use a combination of Rockwool and recycled plastic loft insulation. The simplest/easiest option would...

I bought myself a 22mm Honeywell valve for a C-Plan install and I too discovered that the valve had only a 5 wire flex.... Having dismantled the actuator I discovered that the microswitch is actually a SPDT item, ie. it does have the normally closed contact required for the white wire, but...