And electric heat pumps can be 350% efficient. However, the USP of this product is that it's a drop-in replacement for existing gas boilers which are prevalent

And electric heat pumps can be 350% efficient. However, the USP of this product is that it's a drop-in replacement for existing gas boilers which are prevalent in some parts of the world. The article says the unit costs around £3,500 and installation of a replacement gas boiler costs around £500, so maybe ~£4,000 to switch from gas to electric. An equivalent air-source heat pump installation could easily cost £12,000, and often gas boilers are located in areas which are space-constrained.