Using technology similar to a tankless water heater for your home, the propane-powered Coleman® Hot Water on Demand™ H2Oasis™ Portable Water Heater dispenses hot water in as little as 30 seconds. So now you can enjoy time in the great outdoors without having to give up hot showers, washing dishes in warm water, or preparing a hot drink. A built-in lithium-ion battery, which can be charged from your car outlet with the included charger, powers the electric pump for reliably strong water flow. When you're ready to pack up, disconnect the hoses and store everything in the included mesh bag until your next great adventure.