Our teardrops are well insulated so a heat source is not necessary until temperatures drop below freezing. In such conditions, and when dry camping (camping without shore power), we recommend indoor-safe propane heaters such as the “Little buddy.” If a power source is available, we recommend an electric space heater. Electric heat helps to keep the cabin dry, whereas the propane heaters will cause significant condensation. We also offer a forced-air propane heater from Propex that minimizes condensation.