Products


AIR-BUS BV 471-691 – indirect oil fired air heaters
Indirect fuel fired air heaters with separate Riello burner
AIR-BUS indirect air flow heaters have a wide heat exchanger in stainless steel pipes and a separate Riello burner. They offer high efficiency and the possibility of connecting up to four flex tubes per unit.
Key features
-
Strong and robust steel frame with metric bolts
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Powerful fan
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Air pressure 250 Pa (400 Pa for centrifugal version)
-
Digital control of the combustion
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Unique 'cold start' button for very cold environments
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Possible connection to 4, 2 or 1 flexible tubes
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Flue gas exhaust
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Separate Riello oil burner
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Summer/Winter switch for ventilation only
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Electronic flame control with photocell
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Fan-Limit thermostat with automatic reset
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Limit thermostat with manual reset
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Fuel preheater
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Two oil filters: oil pump filter and suction filter
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Quick connector to external tank (optional)
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High-efficiency heat exchanger made of stainless steel pipes
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Stainless steel combustion chamber
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Robust wheels included
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4 robust crane hooks
Product specifications
Heating power
136
kW
Heating power
464,000
Btu/h
Heating power
116,900
kcal/h
Air flow
8,500
m³/h
Fan type
Axial
Air pressure
250
Pa
Thermostat control
Analogue or digital
Fuel consumption
12.93
l/h
Power supply
220-240/1ph/50
V/Hz
Electric power
1.5
kW
Rated current
6.9
A
Electronic box protection
IP55
Flue tube
200
Ømm
Air outlet diameter
4 x 27
cm
Air outlet diameter
1 x 60
cm
Product size (l x w x h)
1790 x 880 x 1360
mm
Box size (l x w x h)
1730 x 755 x 1325
mm
Net/gross weight
270/300
kg
Suitable for
Our tools
Air flow heater calculator - Master
Use our calculator to get recommendations for the size of air flow heater you need for your room.
Master 3-year limited warranty
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Accessories and consumables
Useful downloads
Master catalogue
Catalogues
Master AIR-BUS fuel tank manual
Manuals
Related products
Featured insights

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- 5 min read
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