Warm air heater RBW
The warm air heater RBW sets standards in energy efficiency, sustainability and low operating costs in hall heating, with innovative condensing technology. The decentralised heating units, mounted under the ceiling, suction the rising heat from the hall, filter it and lead the cleaned air past a stainless steel combustion chamber to heat the air to the desired room temperature. Inside the new heat exchanger, a turbulent flow of the exhaust gases is continuously generated and thereby ensures an optimised heat exchange. The efficiency of the system (based on the calorific value) increases to more than 106% - an increase of over 10% compared to conventional decentralised systems!
Furthermore, via steady tapping of the heat cushion under the ceiling, the temperature difference is reduced to a minimum of 0.1 ° C to 0.4 ° C per meter.
The RBW type decentralised hot air system is heated with natural gas or low sulphur fuel oil. The system can also optionally be supported by solar air collector resources. Suctioned air is heated and fed in via a channel system. Heating costs can be reduced even further to 15%.
|Nominal heat output / Gas, |
|Nominal heat output / Oil, |
|50 / 100||50 / 120||70 / 175||80 / 250|
|Nominal air flow (m3/h)||7.000 / 10.500||8.000 / 12.000||12.000 / 18.000||15.000 / 22.000|
|Drive capacity ventilator (kW)||0,75 / 2,1||0,9 / 3,0||0,9 / 3,0||1,7 / 5,4|
|Sound level* (dB/A)||61||63||64||65|
|max. gas flow rate |
(natural gas)** (Nm3/h)
|max. oil flow rate (kg/h)||9,2||11,5||16||23|
The patented mixed air distribution system with two built-in low-pressure axial fans for the controlled mixing of secondary air into the supply air stream also uses the heat cushion under the ceiling. Due to the special arrangement of the axial fans in the "Thermovent mixing air distribution", via the injector action, the primary air flow from the direct fired warm air heater is mixed with the secondary air stream. Thus, the temperature of the supply air distributed is considerably reduced, thus achieving a lower difference in temperature to room temperature by up to 50% with the air distributor. Especially in high halls, due to the reduced heat-up temperature differential, the thermal lift from the floor to the roof is significantly lowered. Using the blended hall air cooler, fresh air is heated and burner runtimes are thereby greatly reduced.
© 2018 by LK Metallwaren GmbH