Features:1. The 3 levels of temperature adjustment 4.2kw 70 square meters super large space, soft light speed warm.2. Safe to use, dark light is not glaring ODS hypoxia protection Dumping and shutting down protection Accidental flameout protection.3. Ceramic heating element design, up to 70 square meters large heating area, natural convection and dispersion of air, evenly scattered in every corner of the room.4. The heater adopts dark light design, no wind but no dryness, silent design, does not disturb your work and sleep, warm and comfortable all day long, no wind, no dry 60B quiet sound.5. 3 seconds rapid heating, fast constant temperature, large area of the whole house, constant temperature convection heating, warming the whole family.Specifications:Name: Gas HeaterApplicable to gas source: 20Y (liquefied gas)/12T (natural gas)Safety device: flameout / hypoxia / dumping protectionSize: about 380*280*560mm/14.96*11.02*22.05inPacking size: about 390*290*570mm/15.35*11.42*22.44inUse environment: indoor/outdoorIgnition method: pulse ignition safety device (a No. 1 battery needs to be installed, the battery is not included)4.2kw heating area: about 20-70㎡Material: cold rolled steel plate, ceramic platePacking List:Option A:1*Gas Heater1*Pressure Reducing Valve1*1.5m Hose2*Buckle Clips (Liquefied Gas)Option B:1*Gas Heater1*Pure Copper Tee1*3m Hose 5*Buckle Clips (Natural Gas)