Some mini caravans are certified for winter use. Under European standard DIN EN 1645-1, a winter-capable caravan must heat from 0 to 20 degrees Celsius within two hours, while a winter-proof one must heat from minus 15 to 20 degrees in four hours and hold that temperature for one hour. The Kip Shelter Plus weighs under 1,000 kg, has an 80-watt underfloor heating and a Whale heater, priced at 26,645 euros. The HeroCamper Livingstone with a 2 kW diesel heater costs about 27,550 euros. The Mink Camper with a 12-volt Webastoⓘ diesel heater and panoramic roof window is priced at 23,000 euros. For gas systems, propane is recommended over butane.
