>You didn’t mention insulation, but that should come first. Masssave will
give you big subsidies for insulation work and zero interest for the
rest.

Done.

​

>Mini splits can do the job alone. If you already have vents for AC, you
can use a central system instead of mini splits. Otherwise, you might as
well shell out for mini splits rather than do vent work. You can keep
the old system if you want, but I’d rather clear out those radiators for
good.

Unfortunately I don't have AC ducting so it would have to be all mini splits. Good to know they're probably robust enough. I need to find a specialist and not someone who's trying to sell me a new gas boiler lol.