Master XL9 SR – Infrared Oil Heater

The XL 9SR and 91 are infrared oil fired heaters with separate Master burner.

Infrared oil heaters deliver heat fast and exactly to the place where it is required without any air movement. They are excellent at providing direct heat with minimal air disturbance.

Similar to the sun, short-wave infrared radiation heats the objects without heating the air. Once objects 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 the direct application of targeted heat, such as for drying or wetness evaporation. 

As with all Master heaters, the XL 61 is plug and play: they do not need installation. They are portable, can warm up very quickly, and can be controlled by a remote thermostat. Master heaters are designed to minimise environmental impact, they are robust and designed to last many years. Spare parts are also available for at least 10 years, increasing life expectancy. Master offers a 3-year warranty on all products for peace of mind. 



  • Greenhouses and nurseries
  • Commercial grow operations
  • Grow-rooms
  • Controlled environment agriculture (CEA) facilities
  • Vertical farming
  • Indoor farming
  • Urban farming



  • Low noise
  • Infrared heating (short wave)
  • No air flow
  • 2-step power
  • Electronic flame control with photocell
  • Post-ventilation
  • Oil level indicator
  • Oil pump filter, suction filter and inlet filter
  • Snorkel (XL 91)
  • Adjustable direction/tilting
  • Trolley included



XL 9SR XL 91
Heating power kW 29 | 43 29 | 43
Heating power Btu/h 99,300 | 146,900 99,300 | 146,900
Heating power kcal/h 25,000 | 37,000 25,000 | 37,000
Fuel consumption l/h 2.7 | 4.03 2.7 | 4.03
Fuel autonomy h 21 | 14 21 | 14
Thermostat control Analogue Analogue or digital
Electric power kW 0.16 0.19
Power supply V/Hz 220-240/1ph/50 220-240/1ph/50
Rated current A 0.7 0.7
Tank capacity l 60 60
Product size (l x w x h) mm 1070 x 700 x 980 710 x 970 x 990
Box size (l x w x h) mm 1200 x 750 x 1130 1030 x 750 x 1190
Net/gross weight kg 69/85 69/85
Pallet pcs 1 1
110 V Available Available




Why Choose Vertikit?

  • No bias and no bull. You'll always get a straight answer from our team on your best options, regardless of manufacturer.
  • Prepared for anything. Our collective history of working with both growers and industry means that whatever the size or complexity of your operation we'll have you growing in no time.
  • Vertikit source from many industries, we love to mix and match the best tech from a wide range of innovators from around the globe (yes, globe - we're scientists remember).

Real Industry Expertise

Don't be surprised to see the odd PhD knocking around our office. When you work with Vertikit you are choosing actual leaders of the field. We've got years of research experience and practical project knowledge to share.

Our Unique Approach

With our level of experience comes the ability to be really creative when it comes to product choices. Our curated product catalogue comes from the world's best suppliers of the specific technologies you need to succeed, regardless of whether they are farm-specific.