Did you upsize for the heat pump model or go with the same size that you had previously? This wasn't the coldest winter that we've had by any stretch, but I'm assuming you didn't have any issues this winter? Nothing that got you thinking "I've made a huge mistake"?

Who did you go with for the installation?

That's pretty much what I was thinking. Do you have one or are you just making the same assumptions that I am?

No, just using the "hybrid" term in the way that most manufactures use it: the water heater uses a heat pump and an electric element, but can run from one or the other or both. Not talking about single outdoor units or split heat pump water heaters that put the heat pump outdoors. Air source heat pump for cooling/heating (with supplemental heat from the existing gas boiler & radiators) is a future project.

Sounds like you're considering putting in the same thing that I'm considering and for mostly the same reasons. Are you sizing up to a larger capacity unit than your current water heater?