M
maltman
Just a little information I had to phone GSR to find out the facts .
I had a few Vaillant eco/turbo max boilers to CP12 now called GSD12 but had a U40 meter big bugger but as long as the safety checks were taken upstream of the isolation cock on the boiler it was ok so 3 GSD12's were issued .
Lovely grub
Maltman
I had a few Vaillant eco/turbo max boilers to CP12 now called GSD12 but had a U40 meter big bugger but as long as the safety checks were taken upstream of the isolation cock on the boiler it was ok so 3 GSD12's were issued .
Lovely grub
Maltman