Products
Master XL 91 – infrared oil fired heaters
Infrared heaters deliver heat quickly and right where it is needed without any air movement. They are suitable for dust-free drying walls or paints, defrosting machinery or pipe lines, and heating work areas. This powerful technology results in significant energy savings and can be used in dusty areas or outside.
Key features
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Low noise
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Infrared heating (short wave)
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No air flow
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2-step power
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Electronic flame control with photocell
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Post-ventilation
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Oil level indicator
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Oil pump filter, suction filter and inlet filter
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Snorkel
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Adjustable direction/tilting
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Trolley included
Similar to the sun, short-wave infrared radiation heats the objects without heating the air. Once objects (or walls) are penetrated with heat, they can also reradiate and heat other objects. Infrared radiation heats through fog or wind. Infrared radiation travels straight, unlike hot air which rises. Infrared heaters are an excellent solution for:
- Heating objects, bodies or walls indoors and outdoors.
- Drying plaster walls. Infrared heat penetrates the wall and evaporates the humidity of the wall from inside. Unlike an air flow heater which creates a dry surface which traps humidity in the wall.
- Heating objects or limited indoor spaces. Unlike other methods where the hot air is quickly dispersed in the room.
- Saving energy, because less energy is required for achieving the same heating effect.
Product specifications
Heating power
Heating power
Heating power
Fuel consumption
Fuel autonomy
Thermostat control
Electric power
Power supply
Rated current
Tank capacity
Product size (l x w x h)
Box size (l x w x h)
Net/gross weight
Pallet
110 V
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
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: 4033.049
Accessory for B 230, B 360, BV 110, BV 170, BV 290, BV 400, XL 9, XL 91
Useful downloads
Master catalogue
Master XL 9ER-XL 9SR user manual
Related products
Infrared oil fired heaters – hybrid
The DC 61 delivers heat fast and exactly to the place where it is required without any air movement.
Infrared oil fired heaters with Master burner
Highly efficient and easy to use the XL 61 heats up a room or working space quickly at a low energy cost.
Infrared electric heaters
Infrared heaters deliver heat quickly and right where it is needed without any air movement.
Featured insights
Ensure that construction heaters are applied effectively and safely by following this helpful guide.
Become the go-to supplier for construction and water damage restoration
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