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Master B70 Direct Oil Fired Space Heater - 240v 20kW

  • Master B70 Direct Oil Fired Space Heater - 240v
  • Master B70 Direct Oil Fired Space Heater - 240v
  • Master B70 Direct Oil Fired Space Heater - 240v
  • Master B70 Direct Oil Fired Space Heater - 240v
  • Compact Oil Fired Space Heater
  • 20kW / 68,280 BTU Heating Capacity
  • 400m³/hr Airflow
  • 240v Power Supply
  • Handy Portable Design
  • Suitable For Building Sites & Well Ventilated Areas
  • Runs on Diesel or Kerosene
Price Match
Rapid Delivery
3 Year Warranty

Call FREE for expert advice

0808 196 9380


Fast, Efficient & Cost Effective Heat: Provides a simple, convenient and effective way of heating a range of outdoor and well-ventilated spaces. Please note, direct fired heaters must not be used in indoor / poorly ventilated spaces.

Tough & Robust Construction: Built to perform in challenging areas, including construction sites, yards, workshops, warehouses, agriculture and more.

Compact & Portable Design: Convenient size and carry handle makes this heater easy to transport and move around on site.

High Quality Components: Two oil filters (oil tank filter and suction filter), thermally protected motor, electronic flame control with photocell and tough stainless steel combustion chamber ensure safe, reliable and effective performance.

Easy To Use Controls: No complex controls, for quick and easy start up.

On Board Fuel Tank: 19 litre on board fuel tank keeps the heater fuelled up for up to 10 hours of use.

Thermostat Connectivity: An optional thermostat can be connected to this heater, allowing you to set a required temperature. The thermostat will switch the heater on and off as required in order to maintain the set temperature. This saves fuel and adds extra convenience.

Overheat Thermostat: Shuts down the heater automatically if it overheats, to prevent accidents.


Master B70 Oil Fired Space Heater

Safe. Affordable. Reliable.

This incredibly robust Master B70 oil fired heater has been designed for regular or intermittent use in industrial or commercial environments. This 20kw direct oil fired heater is built to last due to its heavy-duty and robust exterior body, stainless steel combustion chamber and thermally protected motor. All of these design features ensure a long service life. The Master B70 boasts a lightweight chassis considering its performance capabilities making it an ideal space heater for moving around or between sites. 

Thermostat Connectivity

Allowing you to control your climate effectively

This portable master space heater features a thermally protected motor and can also be attached to external analog or digital thermostats to give operators even more control over the application area temperature. Though this oil fired heater has a lightweight body, its performance is uncompromised. The Master B70 heater is specifically designed for portability and consists of easily serviceable parts including the oil and suction filters and an oil tank level indicator.

Portable & Lightweight Design

Fast & efficient all-round heating solution

This portable, professional and powerful Master B70 direct oil fired heater offers one of the most efficient and reliable all-round heating and drying solutions of any unit of this type and style on the market today. This 20kW 240v portable oil fired heater is perfect for applications such as warehouses, factories and construction sites. This oil fired heater features a thermally protected motor, standard photocell cut off, electronic flame control, state of the art external body cooling system, overheat switch protection and high air displacement as standard making it the perfect appliance for all applications.

Please note: Direct oil fired space heaters use a combustion system to create instant hot air and do not expel the fumes separately. Only use direct oil fired heaters outdoors or in open and well ventilated spaces. Proper ventilation of the area is necessary to prevent the reduction of the oxygen supply. These units are not suitable for use with waste oil.


Heating power: 68300 Btu/h
Air Flow: 400m³/h
Tank Capacity: 19l
Fuel Autonomy: 10h
Weight: 15kg
Dimensions L x W x H (mm): 745 x 300 x 405

Latest Reviews

Happy I went with the Master heater

I went for the Master B70 because I thought it would be good to have a good quality heater that can be serviced and fixed rather than just a cheap thing that you have to throw away after a few months. It works well so far, all good.

Mr Galvin

Really good diesel heater

Very happy with the Master B70 gas heater. It feels very good quality and warms up really quickly on our yard.


Not cheap but you get what you pay for

If you can afford to go for the Master B70 I would recommend it. It's better than the cheaper brands and feels much tougher and better made. You buy cheap you buy twice.

Brett Iloba