This past summer ( 2023 ) I had a new viessmann walmount propane boiler installed. I live in the northeast an I lose power occasionally during the winter months. My concern is I have a non-inverter generator. Will this new boiler run correctly with a standard portable generator. Everything else in the house runs fine with my Generac generator. I am just not sure if this new boiler is going to have issues because the sin wave may not be pure. Should I have any concerns or should it run correctly on my generator? Any input would be helpful, just don’t want to damage anything. My house desk computers run fine on my generator as well.