Heater Specs on 2019 Palomino Puma XLE Lite 27RBQC

Anything labeled "Lite" is going to be unsuitable for temperatures below freezing. Keeping the living space warm is not usually an issue if you're willing to burn the propane. Keeping your water utilities and anything under the floor from freezing will be a much bigger issue. Looking at the specs on the 2019 Palomino Puma XLE Lite 27RBQC, I would say it may or may not even be adequate for early spring or late fall.

Rob