For new builds the only subsidy is zero VAT, which now applies equally to all heat pump types, so this should hopefully change soon. Existing properties are el

For new builds the only subsidy is zero VAT, which now applies equally to all heat pump types, so this should hopefully change soon. Existing properties are eligible for the Boiler Upgrade Scheme which also now covers air to air (ie. reversible) systems. There's still a bit of "what? no radiators?!" cultural resistance to overcome, but I'd expect this to fall away quickly as the climate continues to warm.