Camplux 10L 2.sixty four GPM Transportable Propane Water Heater The Camplux 2.64 GPM propane water heater is built especially for minimal-use outdoor purposes. Great for sheds, outdoor showers, or campers and RVs, this tankless water heater can guidance 1 or 2 appliances at a time. It connects easily and securely to straightforward propane tanks, w