Which heating solution is the right choice for your circumstances?
Grzegorz Kruk
- 9 min read
Master B 300 – direct oil fired heaters
Direct oil fired heaters – low pressure
Direct oil heaters are highly efficient devices that provide large volumes of instant heat where it is required. They are ideal for open or well-ventilated areas like factories, warehouses or construction sites. Master direct heaters are known for their efficiency, robustness, ease of use and operational safety.
View all of our direct oil fired air heaters or browse our full range of heaters that are suitable for multiple applications and environments.
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Key features
-
Low pressure heaters
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High air flow
-
Two oil filters – oil tank filter and suction filter
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Thermally protected motor
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Electronic flame control with photocell
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Stainless steel combustion chamber
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Trolley included
-
Oil tank with level indicator
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Designed for easy handling and transportation
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Easy maintenance
-
These heaters can burn: biofuel HVO 100, diesel or kerosene
Product specifications
Heating power
44/88
kW
Heating power
150,500-301,000
Btu/h
Heating power
37,900-75,800
kcal/h
Air flow
900/1,800
m³/h
Fuel autonomy
23/12
h
Thermostat control
Analogue or digital
Fuel consumption
4.2/8.4
l/h
Power supply
220/240/50-60
V/Hz
Electric power
0.28/0.56
kW
Rated current
1.2/2.4
A
Protection
IP41
Tank capacity
105
l
Product size (l x w x h)
1240 x 670 x 640
mm
Box size (l x w x h)
1600 x 750 x 900
mm
Net/gross weight
53/70
kg
Pallet
1
pcs
Dual voltage
No
Our tools
Air flow heater recommendation tool
Use our calculator to get recommendations for the size of air flow heater you need for your room.
Master 3-year limited warranty
Register your Master product here to take advantage of the benefits of the 3-year limited warranty.
Master Climate Solutions app
Use the Master Climate solutions app to calculate power and get recommended heating, cooling, drying or ventilation products for your work area.
Accessories and consumables
Product code: 4150.109
Accessory for direct oil, indirect oil, AIR-BUS, BLP ET, B 18, B 30, RS 40, XL 9, XL 61, XL 91, DC 61, CF 75
Product code: 4150.112
Accessory for direct oil, indirect oil, AIR-BUS, BLP ET, B 18, B 30, RS 40, XL 9, XL 61, XL 91, DC 61, CF 75
Product code: 4150.133
Accessory for direct oil, indirect oil, AIR-BUS, BLP ET, B 18, B 30, RS 40, XL 9, XL 61, XL 91, DC 61, CF 75
Product code: 4150.134
Accessory for direct oil, indirect oil, AIR-BUS, BLP ET, B 18, B 30, RS 40, XL 9, XL 61, XL 91, DC 61, CF 75
Useful downloads
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Indirect oil fired air heaters – high pressure
Master indirect oil heaters are highly efficient and generate 100% clean, dry and fume-free warm air.
Featured insights
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