If power goes out, how do I heat my BP's enclosure?

A Generac is a whole house generator, designed to kick in and keep everything functioning when the power fails.

I have a portable generator since I only need enough electricity either to heat certain areas, e.g. kitchen and bathrooms to prevent pipes from freezing in the winter, and the snakes would get moved into the bathroom to take advantage of ambient heat. If the power fails in the summer then the snakes would likely be ok, and the generator would just be needed for the refrigerator and chest freezer, plus a few fans.

So, look at the different scenarios that affect you, what is your worst case scenario if the power fails (typically storms followed by extreme heat or cold), decide what exactly you need to run in each scenario, add up the power drawn by each appliance plus a safety factor of 10-15%, and pick a generator.

I live in Michigan, so the weather is a little screwy. However, a generator that can run my radiant heat panel and a space heater would be fine. Thank you for the advice.

The big difference is the transfer switch to my mind. It is the switch that when the power fails it immediately starts and runs the back up on its own. The power flickers and that is it. It does not require you to go start it, run cords ect. It is wired to the house and just takes over. You can wire a transfer switch to a gas generator but by the time you buy one and wire it you have just bought a stand by unit.

To my knowledge only Honda and Yamaha run pure seine wave energy if you have proportional units you really should use a pure seine wave power.