Nepean covers a wide span of building eras, and which decade your house went up tells us most of what we need to know before we arrive.
Much of Nepean was built between the 1960s and the 1990s, with forced-air gas heating and ductwork already in place. A central cold-climate heat pump can use that ductwork directly. The one thing worth checking on homes of this vintage is whether the duct sizing suits the airflow a heat pump wants, since a heat pump moves more air at a lower temperature than a furnace does. That is a straightforward assessment, and it occasionally explains why a neighbour was unhappy with theirs.
Nepean spans enough decades that services range from 100 amp in the older sections to 200 amp in the newer ones. A 100 amp service is not the obstacle it is often made out to be. How the backup heat is staged makes more difference to the calculated load than the panel rating does, and that is a design decision rather than a fixed constraint.
The most common Nepean job we see is a house where the furnace and the AC are both around the same age and both due. That is the point where a heat pump makes the most sense, because you are replacing two machines with one, and claiming up to $7,500 rather than the roughly $2,000 a furnace attracts.
We cover Nepean including Barrhaven, Bells Corners, Craig Henry, Centrepointe and Manordale, along with Stittsville and Kanata to the west.
Sizing decides everything else, including whether your electrical service can carry the system. Our heat pump design tool runs a load calculation for your address, and the panel sizing tool will tell you where your service stands.
Worth reading first: what the Ontario rebate is worth, what a heat pump costs, and whether one is worth it.