iHeat Tankless AGL-5 34,000/btu-hr 5 Liter LPG Gas Portable Water Heater Kit Heat AGL-5 is a portable liquid propane fired water heater capable of delivering 1 to 1.4 gal. Of hot water almost anywhere your incoming water Temp does not go under 65 degree F AGL-5 is a small work horse; people use similar units to heat the water outside their homes, safely and reliably Gas is supplied from a standard 20 lbs. Propane cylinder (a shower nozzle with on/off switch and multiple spray patterns is included) Includes gas regulator, and shower arm sprayer Ignition is automatic and powered by 2 "D" cell batteries (not included