Most homes are already suitable for heat pumps as they are - you only need an outside space big enough outside to park a moped. We're gearing up to install on a large scale but we're initially focusing on really common types of UK homes: 2-4 bed, well insulated ones from the 1930's onwards.
Heat pump solutions for flats aren't quite there right now, but there are still other greener solutions - check out Tepeo's Zero Emissions Boiler or Next Gen's electric wallpaper, which you can find out more about on our Works With Octopus programme.