Part 2 of our video on Bypass 2022 and expansion vessels

[@chandreshvarsani2190]

Would you say this is needed on gas boilers only? Do Air Source Heat Pumps need his installed also

[@mrcombiBedford]

Thanks for asking, I don't think an ASHP is classed as a boiler could be, I could be wrong, best advice would be always ask the manufacturer. Regards George staszak