... is suitable for shops, restaurants, organization, hotel, office building, farm.Simple design, easy to operate.Easy maintenance, less troubles.More ... : CE, GOST, ROSTECHNADZOR, AGANatural-gas output pressure: 2-6kpa,air ventilation:>2.5m³/h LPG output pressure: 2.8±0.5kpa ... ,air ventilation: >1.1kg/hConnecting tracheal (inner diameter): 10mmWarranty: one year ...