Instantly producing 5 litres of Hot Water per minute. With 0.25 bar startup and ignited by 2pcs D-size cell batteries Runs on propane or butane gas cylinder. 37mbar for propane gas and 30mbar for butane gas. Heat is easy to adjust via water knob and gas knob Equipped with a folding handle for easy carrying whenever you go for camping tours in remote areas, like campsite, RV, stables, holiday house and other off grid areas Drain plug is applied to drain the residual water from the appliance to avoid being frozen or broken For low water pressure areas, heater and pump assembly (AY132P43, AY132Max) for your choice.