[QUOTE=18LT;2542798]The 2109S and 2205S Mini Lites don't have in-floor furnace registers. I don't know about any of the other models.
The tank heaters keep the fresh, gray and black tanks from freezing. My 2205S has heating pads on the fresh water dump valve piping as well as the gray/black dump valve piping.
Our 2104s also has the heating pads. If using the heating pads, must there be fluid in all the tanks, if you are parked in your driveway. Chances the tanks are empty. But my issue would be protecting the plumbing and frozen water in the lines.
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Doing the Same Thing Over and Over Again and Expecting Different Results
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