Would a Legalett in slab radiant heat system be better than a heat pump?
...floor rather than liquid (see the pros and cons of air heated floors vs hydronic here) but they can supply heat to the heater box in the floor using either water or electric coils. So you could sort of ‘have your cake and eat it too’ by installing an air-to-water heat pump. That way you can have radiant heat, heat pump...