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Depending on how much water these boilers are supposed to heat, £10k still sounds a little high. The most economical solution for smaller houses is typically:
by yobbo 5y ago
Depending on how much water these boilers are supposed to heat, £10k still sounds a little high.
The most economical solution for smaller houses is typically: air-to-air heat pump for indoor room temperature, and exhaust-air-to-water for warm tap water.
For larger water heaters, end consumer products might not be commonly available so prices might be much higher, idk. If the boilers are used for circulating water radiators, then that requires larger heat pumps for which £10k is reasonable, but air-to-air is typically more economical. I think part of the reason is the temperature-delta is much higher with water radiators which makes the pump less efficient.
- noneeeed 5y agoUk houses are not designed around warm air heating, wet radiator systems are the norm. I’m not sure you could retrofit warm air into most two storey brick houses in the UK particularly easily.
- rasz 5y agoSplit systems are more efficient than ducted air anyway. Heat Pumps are Not Hard: Here's what it will take to start pumping https://www.youtube.com/watch?v=43XKfuptnik https://www.youtube.com/watch?v=43XKfuptnik
- dzhiurgis 5y agoMaybe you could retrofit freon lines inside of hot water pipes?
- dzhiurgis 5y agoHeated floors work best for wet systems because you don’t need huge temperature delta