Features:1) Winter/summer shift2) 20 minute auto shut-off device3) Automatic ignition at low water pressure4) Overheat protection and flame failure protection5) Water drainage for antifreeze6) Oxygen

Features:1) Winter/summer shift2) 20 minute auto shut-off device3) Automatic ignition at low water pressure4) Overheat protection and flame failure protection5) Water drainage for antifreeze6) Oxygen

Features:1) Winter/summer shift2) 20 minute timer3) Automatic impulse ignition4) Overheat protection and flame failure safety device5) Water drainage for antifreeze6) Oxygen depletion sensor7) Elegant

Features:1) Summer & winter type possbile2) Zero pressure possible3) 20 minutes timer4) Pulse and electrinic ignition5) Overheat protection6) Flameout protection7) Gas leakage protectionOuter packing:

Specifications:1) Starting water pressure: 0.02mPa2) Working water pressure: 0.02-0.4mPa3) Gas pressure: 2800Pa4) Output water ratio: 6.0L/minFeatures:1) Winter/summer shift2) 20 minute auto off devic

Specifications:1) Starting water pressure: 0.02mPa2) Working water pressure: 0.02-0.4mPa3) Gas pressure: 2800Pa4) Output water ratio: 6.0L/minFeatures:1) Winter/summer shift2) 20 minute auto off devic

Specifications:1) Starting water pressure: 0.02mPa2) Working water pressure: 0.02-0.4mPa3) Gas pressure: 2800Pa4) Output water ratio: 8.0L/minFeatures:1) Winter/summer shift2) 20 minute auto off devic

Specifications:1) Starting water pressure: 0.02mPa2) Working water pressure: 0.02-0.4mPa3) Gas pressure: 2800Pa4) Output water ratio: 6.0L/minFeatures:1) Winter/summer shift2) 20 minute auto off devic

Specifications:1) Starting water pressure: 0.02mPa2) Working water pressure: 0.02-0.4mPa3) Gas pressure: 2800Pa4) Output water ratio: 4.0L/minFeatures:1) Winter/summer shift2) 20 minute auto off devic