My oil burner is on the fritz, and will need to be replaced. I had been reading about heatpumps. Just wondering if they are suitable for the north east (long Island)

I havent installed CAC yet and we run a pool heater and my reqular oil burner is on it's last leg. Does it make sence (at all) to consider a heat pump. My thinking is that I could use one unit to serve all three purposes(pool/CAC/Heat)

We plan to expand the house in two to three years and will be doing the CAC venting, and installing radiant floor heating at that time in the great room, kitchen, den etc.

Any thoughts from the professional point of view? Is the heat pump idea hyped? is it impractical for heating in the north east thru regular radiators?

Just wondeirng.