[martincollignon]

This is why we created Lun. Every gas boiler's consumption emits about 2tCO2 per year - and there are about 90 million buildings in Europe that could be heated using heat pumps instead, with huge benefits for energy efficiency and carbon emissions.

As you said, it's a hard problem.

Luckily, politicians and bureaucrats are passing more and more legislation that will force the fossil fuels out of heating over the next decade. We see it as our job to make sure it's going to happen in real life by being the glue between all parties in the value chain (consumers, OEMs, installers, utilities, governments, financial institutions).

And we're looking for great people ;) careers.lun.energy

[buro9]

For where I live in London, ground heat pumps are infeasible and air heat pumps would produce too much noise and not be permitted under conservation area rules.

What most of the UK needs is an effective drop-in replacement to a combi boiler, ideally one that doesn't need a large water storage cylinder. It could even be a combination of a slow boiler (for radiators) and a fast water heating unit (for bath/shower/taps).

Any retrofit of air or ground heat pumps into Victorian terraces just wouldn't work or be acceptable.

The UK needs to replace millions of these style boilers https://www.worcester-bosch.co.uk/products/boilers/directory...

As yet no comparable electric version exists at similar price, size, capability. This is where a govt can incentivise innovation to both create what we need, and then help it be deployed (first with a stick like banning things, and second with a carrot like helping those in poverty get it for cheap/free).

[martincollignon]

For dense, urban environment I think district heating should we the way to go. Works very well in Denmark!

[buro9]

Still unrealistic.

Requires land for the district heating facility, and then ripping up the road to lay plumbing, etc.

For the UK the solution is known: create and mass produce an electric alternative to the combo boiler.

The numbers required, and the time to fit them offers at least a decade of mid-skilled manufacturing and trades employment, as well as recycling opportunities for the old boilers (aluminium, steel, brass).

The cost can also be spread over time and you can start anywhere once the boilers exist.