Boiler keeps short cycling with only UFH is on

[windsor-tg]

Check valve / swing check

As the boiler is cct you only need one pump ideally a modulating pump is best and no there not m

Both the same

sorry @ShaunCorbs - what do you mean by "Check valve / swing check" ?

you comment "As the boiler is cct you only need one pump ideally a modulating pump is best and no there not m" - what is this referring to?

 

[ShaunCorbs]

You will need a check valve to stop reverse circulating as you don’t have a zone valve you could fit a zone valve but a check valve / swing check is cheaper

The purge valves etc arnt needed don’t know why there’s a m on the end tho