No need to run your furnace, saving propane. 3315450.000
This is a heat strip kit that can be added to your Dometic Brisk Air II Air Conditioner, for the added feature of heating. Keep in mind a heat strip should not take the place of a furnace, when camping in below freezing conditions. This kit is compatible with B57915 and B59516 Air Conditioners installed on a ducted system.