Mains pressure system and shower

[Jim]

We've recently had our HW and CH upgraded to a mains pressure system and been instructed by the plumber to keep an eye on the pressure guage and top up to 1 bar as required. Although the shower is a vast improvement on what we had it occured to me that if I upped the system pressure a tad the output might be even better ? However before I go and explode my tank etc I thought I'd better check with the gurus here. The boiler is a Bosch Greenstar 24i, HW tank is a Range Tribune and I was thinking of going to no more than 1.5 bar.

Is there any logic to my reasoning or is it just madness ??

Thanks Jim

[John]

Nooooooo! The pressure gauge is on the Primary circuit. The mains pressure is on the secondary circuit. The primary is a closed loop - feeds the radiators and the water - to - water heat exchanger.

All that would happen is an increased risk of causing leaks ion your heating system and boiler.

[Jim]

Bleedin hell, can't believe I didn't work that out for myself. It's obvious once someone explains it. For some reason I was thinking the boiler was like a combi and heating the actual water used rather than water that then heated the water in the HW cylinder (if that makes sense)

Thanks

Jim