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16L 4.2GPM Tankless Water Heater Natural Gas Water Boiler On-Demand Whole House

Save 23% Save 23%
Original price $399.99
Original price $399.99 - Original price $399.99
Original price $399.99
Current price $309.99
$309.99 - $309.99
Current price $309.99
11 in stock, ready to be shipped


    • Please link the water heater gas inlet interface according to the manual.
    • When installing the water heater to connect the outlet pipe, please do not exceed the torque of 3.5N.m twist the pipe.
    • Empty the water tank in cold weather to avoid any crack.
  • Do not install the water heater and the exhaust pipe near any flammable or explosive items.
  • Please seal the air inlet, water inlet and water outlet with the attached gasket, do not use raw material tape or other materials to seal, otherwise it will cause air leakage and water leakage.

Gas Type: Natural Gas

Capacity:16L/min (4.2GPM), 25 degrees warm water producing rate

Working temperature:-8-45℃

Thermal input: 32 KW

Thermal efficiency: ≥80.8%

Temperature rise: 25℃

Copper water tank

High-quality stringy stainless steel panel

Minimum working water pressure: 0.025MPa

Gas pressure: 1000Pa

Fire Catching Ways: Electricity pulse automatic fire catching

Discharge Ways: Flue automatic gas discharge

Applicable water pressure :Zero pressure starting

Cold water connection: G1/2" tube

Warm water connection: G1/2" tube

NPT 1/2" female to G 1/2" male

Gas Pipe:  G 1/2''

Vent Type:4.3" Flue Duct

Automatic ignition system, Flame failure protection device

Water & gas combination unit ,Fitted with over heating and pressure safeguard

Suitable for both summer and winter

20 min. off self-timer

Mains power not required

Electrical requirement: DC3V, Automatic electric ignition powered by two (2) size 'D' batteries (batteries not included); No electrical hook up; No standing pilot

Gross weight: 21 Lbs

  • High efficient energy saving : the heater exchanger and main burner adopt mostly advanced energy-saving and combustion technology to decrease gas consumption and burning noise.
  • Low water-pressured startup : the water control linkage valve makes the heater start up under low water pressure and shortage areas and those living in high stairs.
  • Manifold auto protection : for the sake of your safety
  • Ion flame inspection : to automatically shut down gas power under unexpected flameout.
  • Over water pressure protection function : to automatically decrease pressure under excessive high water pressure.
  • Controller design : both cold water and warm water can be properly controlled
  • Magnificent thin-shaped appearance : it is designed by modern fashionable line shape.