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Every time the softener has regenerated air/gas is present in the cold water supply to the taps. The nearest is the cloakroom which is adjacent. The 15mm pipe is the first tee off, vertically for about 150mm from the 22mm horizontal softener outlet pipe. This 15mm pipe then bends 90deg thro...

System comprises, Ecotec plus 637, VRC470, VR65, VR10 Megaflo unvented. I have just installed the VRC470 in my control system and all seems to work ok. I have one question regarding the DHW timing settings on the VRC470. There are two selections, one is Preparation the other is...

I'm installing the VR65, VR10 and VRC470 and outside thermistor in place of Honeywell programmer and room stat. Is it ok to run ebus signal in the existing 5core with the 230vac supply to the boiler or should I segregate into two separate cables and should cable to boiler be heat resisting...

Hi all, First post in this section of forum. I'm installing a Vaillant outside temperature sensor which will be wired back to the boiler in the loft and would like advice on cable type/installation. The cable run will be about 2metres vertically to the eaves from the bottom entry sensor...

Hi all, I'm installing a Vaillant outside temperature sensor which will be wired back to the boiler in the loft. The cable needs to run from the sensor which will be mounted on a NW facing wall, which is 8ft from adjacent property wall. The cable run will be about 2metres up to the...

What fittings would I need to adapt from 32 pushfit polypropylene pipe to 40 MuPVC solvent weld pipe and using only these materials?

These old double panel rads are part of my system, the remainder are convectors. Does anyone have an estimate for the outouts for them as want to include in total kW rads load. Should I replace them with moderm convectors as boiler is Vaillant 637 and I want to upgrade to modern vaillant WC...

Hi all this is my first post. Have been lurking through the threads on Vaillant ecotec and Megaflo controls to find out how I can improve my systems efficiency as Gas bills around £1250pa. House is a detached five bedroom with two bathrooms both with showers and one also with a bath...