If you can't fit a heat pump, resistive heating should work fine, but it will be more expensive to run. It would obviously put more load on your renewable grid, so you'd want to put heatpumps wherever possible, but at least it's better than burning gas/oil/coal for heat.

> Are all properties suitable for a heat pump though? That's the question.

Generally, yes, but of course it always depends on specific circumstances.

Read up on heat pumps! They're really cool. And yes they're like air conditioning units that can cool and also heat. In addition to heat pump space heating there are also heat pump hot water heaters and heat pump clothes driers and it seems both are more efficient and non-polluting.

It feels magical that they can pull heat from outside in the winter, but that's what they do! The more recent units can even do it in very cold temperatures.