Stationary Warm Air Heaters S

Powerful hall heating for every requirement

Warm air heaters heat the room air and are characterised by an even, pleasant heat transfer. Our S-series warm air heaters have been developed to meet the latest requirements for heating systems and fulfil your individual heating requirements exactly. They combine our long-established Kroll quality with modern, energy-saving technology for trouble-free continuous operation.

The units are ready for use after a short lead time and emit the generated heat directly into the air. In the process, you remain flexible: whether heating oil, liquid or natural gas operation, 2- or 1-stage burner, as a ducted or single unit, horizontal or vertical, full-touch or classic control: our S series can easily meet your individual demands in both new and existing buildings.

Thanks to the generous output range between 25 kilowatts and 652 kilowatts, the right version is available for every location. Customised duct systems can be used for hot air distribution in several rooms. Pressures of up to 1600 Pa are possible.

Our warm air heaters can be used in fresh, mixed and particularly environmentally friendly recirculation mode according to specific requirements. The systems help to reduce energy costs in winter and can also contribute to a pleasant room climate in summer by recirculating air.

Type S

The classic

Proven for years, used thousands of times and available in more than 20 variants.
Efficiency up to 93 percent (Hi)
Wide power range available between 25 kW and 652 kW
Pressures between 50 and 1,600 Pa
Individual special solutions possible

Special accessories such as louvre controls, intake filters, automatic heating oil deaerators, etc., make it possible to solve any challenge according to requirements. Individually adapted duct systems can be used for warm air distribution in several rooms.

The warm air heaters were developed in accordance with current requirements for heating systems and, in combination with a 2-stage burner, completely fulfil the EU regulation of the ErP Directive 2021. They combine long-established Kroll quality with modern, energy-saving technology for trouble-free continuous operation. The appliances can be operated all year round: In summer, they provide fresh air in ventilation mode, in winter they ensure pleasant temperatures and help to reduce your energy costs. The combination with our Ceiling Fan DV is particularly useful in large, high rooms and can provide you with further savings potential through heat recovery.

We guarantee the quality of our products - As the first manufacturer in the heating and ventilation sector, we offer our customers a full 3-year manufacturer's warranty.

Contact

Telephone

Technical Service
Telephone +49 (0)7191 / 9070-222
Telefax +49 (0)7191 / 9070-201

Please have the item number and serial number of the unit ready when making enquiries.

Sales
Telephone +49 (0)7191 / 9070-200
Telefax +49 (0)7191 / 9070-201

E-Mail

Technical Questions
service@kroll.de

Questions regarding Sales
vertrieb@kroll.de

General requests
info@kroll.de

S-devices overview


Nominal heat load	26 kW
Nominal heat output	24,1 kW
Volume flow	2.120 m³/h
Pressure max.	freely blowing
Temperature increase	35 K
Oil consumption	2,2 kg/h
Gas consumption (natural gas E)	2,8 m³/h
Gas consumption (LPG)	2,0 kg/h
Electrical input	230/50 V/Hz
Electrical power consumption	0,64 kW
Flue pipe Ø	130 mm
Length	715 mm
Width	455 mm
Height	1.275 mm
Weight	93 kg
Sound pressure level	68 dB(A)


Nominal heat load	40 kW
Nominal heat output	37,3 kW
Volume flow	2.890 m³/h
Pressure max.	freely blowing
Temperature increase	36 K
Oil consumption	3,4 kg/h
Gas consumption (natural gas E)	4,2 m³/h
Gas consumption (LPG)	3,1 kg/h
Electrical input	230/50 V/Hz
Electrical power consumption	1,12 kW
Flue pipe Ø	130 mm
Length	865 mm
Width	505 mm
Height	1.500 mm
Weight	124 kg
Sound pressure level	71 dB(A)


Nominal heat load	51 kW
Nominal heat output	47,8 kW
Volume flow	3.660 m³/h
Pressure max.	freely blowing
Temperature increase	37 K
Oil consumption	4,3 kg/h
Gas consumption (natural gas E)	5,4 m³/h
Gas consumption (LPG)	4,0 kg/h
Electrical input	230/50 V/Hz
Electrical power consumption	1,59 kW
Flue pipe Ø	130 mm
Length	975 mm
Width	585 mm
Height	1.645 mm
Weight	157 kg
Sound pressure level	71 dB(A)


Nominal heat load	73 kW
Nominal heat output	68,3 kW
Volume flow	5.310 m³/h
Pressure max.	freely blowing
Temperature increase	35 K
Oil consumption	6,1 kg/h
Gas consumption (natural gas E)	7,7 m³/h
Gas consumption (LPG)	5,7 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	1,11 kW
Flue pipe Ø	180 mm
Length	1.085 mm
Width	665 mm
Height	1.835 mm
Weight	191 kg
Sound pressure level	68 dB(A)


Nominal heat load	95 kW
Nominal heat output	88,1 kW
Volume flow	8.090 m³/h
Pressure max.	freely blowing
Temperature increase	31 K
Oil consumption	8,0 kg/h
Gas consumption (natural gas E)	10,1 m³/h
Gas consumption (LPG)	7,5 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	1,74 kW
Flue pipe Ø	180 mm
Length	1.150 mm
Width	765 mm
Height	1.895 mm
Weight	245 kg
Sound pressure level	69 dB(A)


Nominal heat load	108 kW
Nominal heat output	98,5 kW
Volume flow	9.290 m³/h
Pressure max.	freely blowing
Temperature increase	31 K
Oil consumption	9,1 kg/h
Gas consumption (natural gas E)	11,4 m³/h
Gas consumption (LPG)	8,5 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	1,89 kW
Flue pipe Ø	180 mm
Length	1.150 mm
Width	765 mm
Height	1.995 mm
Weight	265 kg
Sound pressure level	69 dB(A)


Nominal heat load	129 kW
Nominal heat output	120 kW
Volume flow	9.200 m³/h
Pressure max.	50
Temperature increase	44 K
Oil consumption	10,8 kg/h
Gas consumption (natural gas E)	13,7 m³/h
Gas consumption (LPG)	10,2 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	1,1 kW
Flue pipe Ø	250 mm
Length	1.250 mm
Width	1.025 mm
Height	2.180 mm
Weight	399 kg
Sound pressure level	63 dB(A)


Nominal heat load	163 kW
Nominal heat output	150 kW
Volume flow	11.800 m³/h
Pressure max.	60
Temperature increase	43 K
Oil consumption	13,7 kg/h
Gas consumption (natural gas E)	17,2 m³/h
Gas consumption (LPG)	12,8 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	2,2 kW
Flue pipe Ø	250 mm
Length	1.250 mm
Width	1.025 mm
Height	2.180 mm
Weight	405 kg
Sound pressure level	66 dB(A)


Nominal heat load	194 kW
Nominal heat output	180 kW
Volume flow	13.800 m³/h
Pressure max.	70
Temperature increase	44 K
Oil consumption	16,3 kg/h
Gas consumption (natural gas E)	20,5 m³/h
Gas consumption (LPG)	15,3 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	1,5 kW
Flue pipe Ø	250 mm
Length	1.750 mm
Width	1.025 mm
Height	2.180 mm
Weight	495 kg
Sound pressure level	61 dB(A)


Nominal heat load	250 kW
Nominal heat output	230 kW
Volume flow	18.400 m³/h
Pressure max.	100
Temperature increase	42 K
Oil consumption	21,0 kg/h
Gas consumption (natural gas E)	26,5 m³/h
Gas consumption (LPG)	19,7 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	3,0 kW
Flue pipe Ø	250 mm
Length	1.750 mm
Width	1.025 mm
Height	2.180 mm
Weight	503 kg
Sound pressure level	66 dB(A)


Nominal heat load	280 kW
Nominal heat output	260 kW
Volume flow	20.600 m³/h
Pressure max.	100
Temperature increase	42 K
Oil consumption	23,5 kg/h
Gas consumption (natural gas E)	29,6 m³/h
Gas consumption (LPG)	22,0 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	4,0 kW
Flue pipe Ø	250 mm
Length	2.200 mm
Width	1.025 mm
Height	2.180 mm
Weight	662 kg
Sound pressure level	67 dB(A)


Nominal heat load	326 kW
Nominal heat output	300 kW
Volume flow	23.400 m³/h
Pressure max.	100
Temperature increase	43 K
Oil consumption	27,4 kg/h
Gas consumption (natural gas E)	34,5 m³/h
Gas consumption (LPG)	25,7 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	5,5 kW
Flue pipe Ø	250 mm
Length	2.200 mm
Width	1.025 mm
Height	2.180 mm
Weight	689 kg
Sound pressure level	70 dB(A)


Nominal heat load	423 kW
Nominal heat output	390 kW
Volume flow	29.500 m³/h
Pressure max.	180
Temperature increase	45 K
Oil consumption	35,5 kg/h
Gas consumption (natural gas E)	44,8 m³/h
Gas consumption (LPG)	33,3 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	5,5 kW
Flue pipe Ø	300 mm
Length	2.200 mm
Width	1.220 mm
Height	2.645 mm
Weight	1.004 kg
Sound pressure level	69 dB(A)


Nominal heat load	489 kW
Nominal heat output	450 kW
Volume flow	35.000 m³/h
Pressure max.	250
Temperature increase	44 K
Oil consumption	41,1 kg/h
Gas consumption (natural gas E)	51,7 m³/h
Gas consumption (LPG)	38,5 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	11,0 kW
Flue pipe Ø	300 mm
Length	2.200 mm
Width	1.220 mm
Height	2.645 mm
Weight	1.015 kg
Sound pressure level	73 dB(A)


Nominal heat load	544 kW
Nominal heat output	500 kW
Volume flow	37.500 m³/h
Pressure max.	160
Temperature increase	45 K
Oil consumption	45,7 kg/h
Gas consumption (natural gas E)	57,6 m³/h
Gas consumption (LPG)	42,8 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	7,5 kW
Flue pipe Ø	300 mm
Length	2.700 mm
Width	1.220 mm
Height	2.745 mm
Weight	1.185 kg
Sound pressure level	69 dB(A)


Nominal heat load	598 kW
Nominal heat output	550 kW
Volume flow	42.600 m³/h
Pressure max.	180
Temperature increase	44 K
Oil consumption	50,3 kg/h
Gas consumption (natural gas E)	63,3 m³/h
Gas consumption (LPG)	47,1 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	11,0 kW
Flue pipe Ø	300 mm
Length	2.700 mm
Width	1.220 mm
Height	2.745 mm
Weight	1.196 kg
Sound pressure level	71 dB(A)


Nominal heat load	652 kW
Nominal heat output	600 kW
Volume flow	48.300 m³/h
Pressure max.	260
Temperature increase	42 K
Oil consumption	54,8 kg/h
Gas consumption (natural gas E)	69,0 m³/h
Gas consumption (LPG)	51,3 kg/h
Electrical input	400/50 V/Hz
Electrical power consumption	15,0 kW
Flue pipe Ø	300 mm
Length	2.700 mm
Width	1.220 mm
Height	2.745 mm
Weight	1.248 kg
Sound pressure level	74 dB(A)