❯ P roducts ❯ Hall heating
Energy-efficient hall heating through innovative technology
Energy efficiency – sustainability – low operating costs: With state-of-the-art condensing and hybrid technology, the RBW warm air heater from LK Metallwaren sets standards in its product segment. Used decentrally and installed on the ceiling, it draws in the rising waste heat from the hall, filters it and returns the purified air to the hall at a combustion chamber and via the heat exchangers, without creating drafts. This heats the air to the desired room temperature. The optimized heat exchange increases the efficiency of the system – in terms of calorific value – to up to 99 percent. Moreover, by tapping the thermal cushion under the hall ceiling, the temperature difference at height can be reduced to a minimum.
Hybrid technology “Made by LK Metallwaren” The RBW warm air heater is heated with liquid gas. Heat pumps or solar air collectors can be used as an additional, resource-saving supplement. The intake outside air is heated and fed to the plant via a duct system. Technology “Made by LK Metallwaren” enables further heating cost savings of up to 30 percent.
Draft-free supply air distribution
The Thermovent mixed air distributor developed by our designers has two built-in low-pressure axial fans. They control the admixture of secondary air into the supply air flow, making use of the heat cushion under the hall roof. Due to the special arrangement of the axial fans, the main air flow of the decentralized hot air generator mixes with the secondary air flow. In this way, the heating of the supply air flow can be significantly reduced at the supply air distributor and a differential temperature to the room temperature that is up to fifty percent lower can be achieved.
Particularly in high halls, the reduced heating differential temperature allows the temperature gradient to be reduced noticeably. The admixed hall air warms the colder fresh air and thus significantly reduces energy consumption.
Project examples
Project example
IPT-Pergande GmbH, Weißandt-Gölzau
Type of use of the hall
- Production and storage (particle and drying technology)
Plant number and type
- 2 pieces RBW 125 (production hall)
- 2 pieces RBW 175 (rack storage)
- 1 piece RBW 125 (intermediate and tank storage)
Installed heating capacity
- 50 kW (production hall), 475 kW (rack, intermediate and tank storage)
Total air volume flow
- 24,000 m³/h (production hall), 48,000 m³/h (rack, intermediate and tank storage)
Air exchange:
- 1.47-fold/h (production hall), 1.2-fold/h (rack, intermediate and tank storage)
Heating medium:
- Natural gas
Hall dimensions:
- Production hall SC Street: 68 x 20 m, hall height: 12 m
- Shelf, intermediate and tank storage: 3,356 m²
Special features of the plants
- Infinitely variable outdoor air system in the production halls
- Condensing technology with high efficiency of up to 99 percent (based on calorific value)
Project example
Witron Logistik und Informatik GmbH, Parkstein
Type of use of the halls
- Production of storage systems and warehouse technology
- Number and type of plants: 8 x RBW 175 (production hall), 4 x RBW 175 (warehouse)
Installed heating capacity:
- 1,400 kW (production hall), 700 kW (warehouse)
Air flow total:
- 72,000 m³/h (warehouse), 144,000 m³/h (production hall)
Air exchange:
- 0.7 times/h (warehouse), 0.9 times/h (production hall)
Heating medium:
- Natural gas
