Jim Goodenough

0.75mm flex is fine, it’s not power it’s data

Yes, that's the one.

Thanks for your help @ShaunCorbs & @Gasmk1 Do I just need this plus 1.5mm T&E cable Outdoor Temperature Sensor (B1HC/B1KC/B1LD) -...

Around 10-15% I would say but modify your program to stay on between your times and alter the curve instead of the room stat

https://viessmanndirect.co.uk/AdditionalDepartments/Header-Content/Weather-Compensation?srsltid=AfmBOop68OanIXxSutuFBLg2NQFsDnf-vtTvhFcvQDUtFMnGdkoIugwp

Thanks Shaun, any rough idea on savings? And where would you suggest buying wc from?

Shaun, I don't think so, however, downstairs is all underfloor heating, with radiators upstairs; house was built in 2019, therefore insulation is really good. Do you reckon it would work?

Have a look at the dab easy sys all in one unit eg tank and pump etc

Good evening, I have a Vitodens 100-W (Type B1HC, B1KC) boiler and I'm considering adding a weather compensation control. I'd appreciate any insights on the pros & cons. We spend around £1,200 a year on gas, Viessmann reckons you can...

Common issue needs changing eg replacement washer Screwfix pn 25438 Geberit had the same issue

hello, I have a friend who has a FAR ufh setup that he needs checking out and balancing. Please share any recommended engineers details in the Norwich/Wroxham area.