Ensure that construction heaters are applied effectively and safely by following this helpful guide.
Monika Kokoreva
- 8 min read
Master BV 77 – indirect oil fired air heaters
Indirect oil fired air heaters – high pressure
Master indirect oil heaters are highly efficient and generate 100% clean, dry and fume-free warm air. They are ideal for places with limited ventilation like shops, event tents, food preparation areas or exhibition halls. They can be used with flex hoses to distribute the warm air.
View all of our indirect oil fired air heaters, commercial grade tent heaters and other types of commercial heater to meet your required applications.
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Key features
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High pressure heaters
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Clean hot air
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Optional connection to a flexible tube
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Flue gas exhaust
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Heat exchanger
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Overheat thermostat
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Post-ventilation
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Thermally protected motor
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Three oil filters: oil pump filter, suction filter and inlet filter
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External suction filter with transparent glass cup
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Electronic flame control with photocell
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Stainless steel combustion chamber
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Oil tank with level indicator
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Trolley included
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High quality brand fuel pump
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Fuel pump with access for easy maintenance
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Snorkel – breather for non-drip fuel tank
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Diagnostic LED
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These heaters can burn: biofuel HVO 100, diesel or kerosene
Product specifications
Heating power
21
kW
Heating power
71,700
Btu/h
Heating power
18,100
kcal/h
Air flow
1,550
m³/h
Fuel autonomy
19
h
Thermostat control
Analogue or digital
Fuel consumption
2.0
l/h
Power supply
220-240/1ph/50
V/Hz
Electric power
0.3
kW
Rated current
1.5
A
Protection
IP44
Tank capacity
36
l
Flue tube
120
Ømm
Flex tube
305
Ømm
Product size (l x w x h)
1130 x 380 x 660
mm
Box size (l x w x h)
1200 x 400 x 530
mm
Net/gross weight
33/37
kg
Pallet
8
pcs
Dual voltage
Available
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
Product code: 4013.260
Accessory for BV 77
Product code: 4013.261
Accessory for BV 77
Product code: 4013.262
Accessory for BV 77
Product code: 4515.572
Accessory for BV 77-110-170-290, BV 400, BV 471, B 18 EPR
Master PVC flex tube Ø310mm, 7.6m for BV 77, BV 110, BV 170, BV 290, BV 400, B 30 EPR, BV 471 heater
Product code: 4515.553
Accessory for BV 77, BV 110, BV 170, BV 290, BV 400, B 30 EPR, BV 471
Product code: 4515.360
Accessory for B 18 EPR, BV 400, BV 471
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.
Indirect oil fired air heaters – high pressure
Master indirect oil heaters are highly efficient and generate 100% clean, dry and fume-free warm air.
Indirect oil fired air heaters – high pressure
Master indirect oil heaters are highly efficient and generate 100% clean, dry and fume-free warm air.
Indirect oil fired air heaters with 2 stage Master burner
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