Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply; German version EN 834:1994— 12 стр.
Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply; German version EN 834:2013— 33 стр.
Heat cost allocators for the determination of the consumption of room heating radiators - Appliances with electrical energy supply; German version EN 834:2013— 33 стр.