Water-air heater for ventilation systems. Copper connections. Housing cover can be removed for maintenance work. With rubber seal on the air connection nozzles. Control/pump group to be taken into account on site. Article: WRH 20-2, Installation position: vertical / horizontal, Housing material: galvanized sheet steel, Weight: 5.23 kg, Weight with packaging: 5.61 kg, Nominal width: 200 mm, Free cross-section: 1701 cm2, Width: 305 mm, Height: 258 mm, Depth: 380 mm, Width with packaging: 375 mm, Height with packaging: 285 mm, Depth with packaging: 381 mm, Air heater type: Water, Heating output: 5000 W, Mass flow: 210 kg/h, Flow temperature: 70 °C, Return temperature: 50 °C, Max. water temperature: 100 °C, Max. water pressure: 6 bar, Water pressure difference: 11100 Pa