【Tankless Water Heater】- Propane Tankless Water Heater with Steady Temperature Control & Multiple Safety Protections (Flame Failure Device, Anti-Freezing Protection, Overheating Protection). Only 0.2 MPa (29 PSI) minimum water pressure required (suitable for 0.2–0.8 MPa), outputs 4.74 gallons of hot water per minute. Applicable exclusively to Natural Gas (LNG). 【Efficient & Energy Saving】- The 4.74 GPM Instant Propane Water Heater features a maximum power output of 123,000 BTU/hour, providing on-demand hot water for 2-3 points of simultaneous water supply to meet bathroom and kitchen hot water demand. This Propane Water Heater’s heat exchanger and main burner are designed with advanced combustion technology, which effectively decreases gas consumption and reduces burning noise. 【Quality Material】- Our Water Heater is Crafted from stainless steel, and this Propane Water Heater exhibits high temperature resistance and corrosion resistance. It also features a built-in oxygen-free copper water tank, which helps reduce heat loss and ensures a prolonged service life. It is equipped with an LED smart digital display, allowing you to effortlessly adjust the temperature according to your preferences. 【Easy to Assemble and Use】- This propane tankless water heater features standard 1/2" NPT water inlet, water outlet, and gas inlet connections for easy integration with existing plumbing. It comes with a 6 cm (2.3 in) diameter exhaust vent for straightforward installation. Note: For safe and proper operation, this appliance must be installed with adequate ventilation and a dedicated exhaust pipe to vent combustion gases outdoors. 【Widely Application】- Compared to tank water heaters, it saves over 50% of available space, and is suitable for both bathroom and kitchen hot water demand. It is great for indoor installation in homes, small cabins and remote apartments, and there is no need to install an expansion tank. Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water inside the water heater. 【Tankless Water Heater】- Propane Tankless Water Heater with Steady Temperature Control & Multiple Safety Protections (Flame Failure Device, Anti-Freezing Protection, Overheating Protection). Only 0.2 MPa (29 PSI) minimum water pressure required (suitable for 0.2–0.8 MPa), outputs 4.74 gallons of hot water per minute. Applicable exclusively to Natural Gas (LNG).