<p>Attention:</p> <br>Please confirm the size of Gas pipe, Water Inlet, Water Outlet before purchasing an order. <br><br><p>Water & gas combination unit ,Fitted with over heating and pressure safeguard</p> <p>Suitable for both summer and winter</p> <p>Mains power not required </p> <p><b>Electrical requirement: DC3V, Automatic electric ignition powered by two (2) size 'D' batteries (batteries not included); No electrical hook up; No standing pilot;</b></p> <p>Description:</p> <p>1. High efficient energy saving : the heater exchanger and main burner adopt mostly advanced energy-saving and</p> <p>combustion technology to decrease gas consumption and burning noise.</p> <p>2. Low water-pressured startup : the water control linkage valve makes the heater start up under low water pressure</p> <p>and shortage areas and those living in high stairs.</p><p>3. Manifold auto protection : for the sake of your safety</p><p>4. Ion flame inspection : to automatically shut down gas power under unexpected flameout.</p><p>5. Over water pressure protection function : to automatically decrease pressure under excessive high water pressure.</p> <p>6. Controller design : both cold water and warm water can be properly controlled</p> <p>7. Magnificent thin-shaped appearance : it is designed by modern fashionable line shape.</p> <br><br><b>Please confirm enough water pressure and gas pressure before using</b><br> <br><br>Tips: In a cold weather, we suggest letting the water out of the unit after finishing use the product. Otherwise, the cold temperature may cause residual water in the heater to freeze and crack the tank. <br><br> Make sure there is sufficient water pressure, gas pressure and power to supply the water heater. Otherwise, the water heater will not be able to heat and doesn't work.