Yes, a rubber coupling should do the trick. You need a soft material to make the seal.
Or better still, get a longer section of pipe so that there are no joints.
But it would be able to do that even if the pressure in the system was say 0.3 bar
My question was, why operate at 1 bar system pressure (as most boilers seem to) instead of say 0.3 or 0.5 bar?
??
The expansion vessel is only there to accommodate the water expanding as it is heated up.
In gravity fed systems the expanding water went to the tank in the loft.
A domestic combi boiler/system for DHW and central heating.
Why does the system have to be pressurised to 1 bar.
Why not 0.2 to 0.5 bar?
When the pump runs, that will also create pressure in the system.
Thanks
The flip side of the argument
Some tradesman charge an arm and a leg to fix simple things, and would the tradesmen not just do the same thing, minimum cost max profit
Thanks for the tip. Good idea.
At this stage, just looking to control the room thermostat.
Will move on to TRV's later. My current TRVs are all manually controlled.
Evening
Looking to get boiler and central heating cover.
Anyone used any of the smaller companies and are they any good:
- warranty people
- corgihomeplan
- heating247rescue
- etc
thanks