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New boiler ?
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Based on a saving of 25% gas usage, the Energy Saving Trust estimates the average saving per household on energy bills after installing a new boiler to be £310. This does not take into account how much installing a new boiler will cost.
The table below illustrates just how much a modern condensing boiler could cut your gas bills by, depending on the size of your house (a boiler that's 15 years old or more is classed as 'old' in these calculations. A lightweight boiler can be attached to a wall; a heavyweight boiler is floor standing.)
Annual fuel costs with different boiler types (source: Sedbuk)
Boiler type Efficiency Semi-detached Detached
Old gas heavy weight 55% £1204 £1705
Old gas light weight 65% £1019 £1442
New non-condensing 78% £849 £1202
New condensing 89% £744 £1053
My gas usage for DHW and CH (in a 4 bed detached) was £851.35 for the last 12 months. So a 25% saving on that would be about £213 per annum.
Cost of replacing my old boiler with a new condensing one? Even if I save £310 a year, it doesn't add up to any kind of overall saving over the expected life of a modern boiler, along with its maintenance costs.
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Based on a saving of 25% gas usage, the Energy Saving Trust estimates the average saving per household on energy bills after installing a new boiler to be £310. This does not take into account how much installing a new boiler will cost.
The table below illustrates just how much a modern condensing boiler could cut your gas bills by, depending on the size of your house (a boiler that's 15 years old or more is classed as 'old' in these calculations. A lightweight boiler can be attached to a wall; a heavyweight boiler is floor standing.)
Annual fuel costs with different boiler types (source: Sedbuk)
Boiler type Efficiency Semi-detached Detached
Old gas heavy weight 55% £1204 £1705
Old gas light weight 65% £1019 £1442
New non-condensing 78% £849 £1202
New condensing 89% £744 £1053
Which, unless you are in the lucky position of being given a free boiler and install, makes it a pretty futile calculation!
My car is 6 years old. No doubt a new one will be more economic to run. But I'd hardly do the comparative maths without including the cost of financing and purchasing the new vehicle.No free lunch, and no free laptop0 -
Who did the boiler servicing guy work for? Anything to do with British Gas?......They told us we needed a new boiler and that was well over 12 years ago.......Our gas safe registered independent chap says ours will last many years yet as long as he can continue to source the parts.0
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beedeedee, it was an independent firm who we have a servicing contract with. We have more than had our monies worth out of the contract
The boiler is a imi range powermax 155 if that means anything to anyone ?!0
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