A mate has an Ideal Concord, CF, 50kW, in very good nick.
His gas bills are £3500 pa.
If a new boiler averaged 90% efficiency rather than his current 60%(?) he'd save enough to pay for a new condenser in 2-3 years. (Couple of Vaillant 28kW's perhaps)
Has anyone measured this sort of improvement over a period?
(I haven't a clue what my gas bills are )
His gas bills are £3500 pa.
If a new boiler averaged 90% efficiency rather than his current 60%(?) he'd save enough to pay for a new condenser in 2-3 years. (Couple of Vaillant 28kW's perhaps)
Has anyone measured this sort of improvement over a period?
(I haven't a clue what my gas bills are )