Amazon.com: RV Tankless Water Heater,65000 BTU, Instant Hot Propane Gas 65000BTU 3.9GPM Portable RV Tankless Water Heater Propane Gas w RV Tankless Water Heater Propane Gas 65000BTU with Controller Shower Accessories 55,000 BTU 2.9GPM RV Tankless Water Heater Instant Hot Propane Gas with 65000BTU 3.9GPM Portable RV Tankless Water Heater Propane Gas w. Product Features: Digital constant temperature system: microcomputer control system, which constitutes the "computer of the whole heater, controls the water, electricity, and gas of the water heater in a coordinated manner, and controls the output water temperature to the selected temperature. Low water pressure startup: Low water pressure at startup and it will be easier to Use. Flame out protection: When the water heater accidentally flames out during use, it can automatically cut off the gas to ensure that the gas will not leck. Speed changing and wind resistance function: When there is a blockage of the flue or the exhaust is blocked, the built in microcomputer system will increase the running speed of the fan and eliminate the emission of harmful gases. When the speed reaches the predetermined maximum speed, the microcomputer systemwill issuethe instructiontostopheatingand gossupply, effectively safeguard the heater and occupants. Water and gas leakage control: When the water supply is interrupted or the water outlet valve is closed, the water heater will automatically stop the combustionandshutdown. Output water temperature display: With output water temperature display. Frostprotectionfunction: . When the temperature of the water pipe in the water heater is lower than61, the wire controller will display "Fd", the machine will start ignition and run with a certain load, and the water heater will automatically shut down after the whole machine runs for 7 seconds. When the water temperature in the working water heater reaches 321C, it will shut down automatically. . After shutdown, wait for 3 minutes for self testing. When the temperature drops below 61 or when antifreeze thermostat control stops working, itwill starttorunagain. . In the process of starting the antifreeze function, when a fault occurs, the corresponding fault will be reported and the corresponding code will be displayed. After15minutes, the system will automatically clear the foultcode. If the antifreeze activation conditions are still met, the antifreeze function will automatically restart. Automatic fault diagnosis and fault code display function: The intelligent microcomputer can monitor various safety devices in real time, gas proportional valve and other components, find faults and shut down safely when necessary. Advanced fault code display function, is easy to use and maintain. Specifications: Gas intended for: Universal LPG Total nominal gas consumption: 63. 3MJ h Number of injector: 5 injector size: 1. 15mm Max. Working water pressure: 0. 4MPA Min. working water pressure: 0. 1MPA Nominal gas pressure: 2. 75KPa Nominal manifold pressure: 1. 92 KPA Powerinput : 12V DC, 3amp Water heating capacity (temp rise 25K): 9L min Maximumwatertemp: 65C Heat output: 18kW Productdimensions: (WxHXD)413413388mm Includes: 1*RV water heater 1*Controller 1*Quick connectors 1*Exhaust hole rubber ring 2*Keys 1*Shower head and nose 1*Gas piping 1*manual Shipping: Free Shipping Delivery Time: 2 6 working days Warranty: Returns: Customers have the right to apply for a return within 60 days after the receipt of the product 24 Hour Expert Online: Solve your installation and product problems