my prehistoric boiler has just died ( the cast iron hex started piddling out water).
A heating engineer / plumber very kindly came around the same day + quoted which I’m going ahead with (system boiler using existing vented hot water cylinder)
He has suggested a system boiler with an S plan, but a bit of googling seems to indicate an S plan will mean return will always be too high a temperature for condensing and weather compensation won’t work….so boiler won’t be operating at its most efficient.
My feeling is I should take the advice of the plumber (he is the expert) and keep things simple and do the S plan rather than complicate the install.
I would be grateful for any advice
A heating engineer / plumber very kindly came around the same day + quoted which I’m going ahead with (system boiler using existing vented hot water cylinder)
He has suggested a system boiler with an S plan, but a bit of googling seems to indicate an S plan will mean return will always be too high a temperature for condensing and weather compensation won’t work….so boiler won’t be operating at its most efficient.
My feeling is I should take the advice of the plumber (he is the expert) and keep things simple and do the S plan rather than complicate the install.
I would be grateful for any advice