Indirect Fired Diesel Heaters
Indirect fired diesel space heaters are efficient pieces of equipment for heating a wide range of spaces safely and effectively. They feature a flue system which exhausts fumes produced during combustion out of the top of the heater, meaning only 100% clean, dry and fume free warm air comes out of the front of the unit. The warm air can be directed into spaces using flexible ducting hoses. Indirect space heaters are perfect for heating enclosed, poorly ventilated spaces safely, such as halls, marquees, tents, workshops, construction sites and more. They can also be used for drying applications, as the warm & dry air they produce helps to speed up drying times.

Arcotherm
Arcotherm EC32 Indirect Oil Fired Space Heater
- 29kW Heating Capacity
- 1150 m3/h Airflow
- 110v/230v Dual Voltage Power
- Clean, Fume-Free Warm Air
- Warm Air Can Be Ducted
- Flue, Thermostat & Ducting Available As Accessories
- Ideal For Marquees, Workshops & Events
- 2022 Stock Arriving November!

Thermobile Industries BV
Thermobile ITA 35 Indirect Oil Fired Space Heater
- 24.8kW Heating Capacity
- 230v Or 110v Power Supply
- 40L Internal Fuel Tank
- Clean, Fume-Free, Warm Air
- Can Be Used With Ducting
- 91% Heat Exchanger Efficiency
- Heat Resistant Combustion Chamber
- Ideal For Commercial & Industrial Applications

Arcotherm
Arcotherm Space Heater Package (Single Outlet)
- Choice of Arcotherm Indirect Fired Heaters
- Ducting, Flue, Rain Cowl, Thermostat & Diffuser Included
- Free Delivery
- Choice of Standard & Low Level Diffuser
- Everything You Need In One Package Deal
- Ideal For Heating Marquees, Workshops & Enclosed Areas

Thermobile Industries BV
Thermobile ITA 45 Indirect Oil Fired Space Heater
- 45.1kW Heating Capacity
- 230v Or 110v Power Supply
- 80L Internal Fuel Tank
- Clean, Fume-Free, Warm Air
- Can Be Used With Ducting
- 91% Heat Exchanger Efficiency
- Heat Resistant Combustion Chamber
- Ideal For Commercial & Industrial Applications
Indirect Fired Space Heaters
Perfect for heating enclosed & poorly ventilated spaces safely
Indirect oil fired heaters are tough and reliable space heaters that produce 100% clean, dry and fume free warm air. They are ideal for heating poorly ventilated, enclosed spaces such as marquees and tents, halls, workshops and more. They are very popular space heaters in the events industry, as clean warm air that they produce heats spaces effectively and safely, without causing harm to occupants within the space. Their portable design allows these space heaters to be put in place for a temporary application and then removed again when the event is over.
Our range of portable indirect fired space heaters includes models from some of the best brands in the industry – including Master, Arcotherm & Thermobile. These heaters can be fuelled using standard diesel, red diesel or kerosene. An internal fan is powered by electricity and used to draw air into the heater and expel the clean warm air out of the front of the unit.
Flexible ducting hoses can be attached to the outlets on these heaters, to vent the warm air into the space or the area you wish to heat. Indirect fired diesel heaters can also be used with a thermostat, which allows you to set a required temperature within the space. The thermostat will switch the heater on and off as required in order to maintain the set temperature, adding convenience and saving money on fuel.
Indirect oil fired space heaters can also be used to assist with drying applications on site. As warm air is able to hold more moisture than cold air, heating a space you wish to dry using warm air helps moisture to evaporate into the air, which can then be collected by a dehumidifier. Refrigerant dehumidifiers also work better in heated spaces, therefore further improving drying times.
We have a wide range of indirect fired space heaters available online, in different sizes to suit all kinds of different spaces. The Master BV77 is an very popular 20kW indirect fired heater. It is ideal for heating small marquees and tents, halls and workshops. Its compact size makes it very easy to transport to and from a site. We also have much larger models available, such as the Arcotherm Jumbo 145M – a 137kW industrial heater ideal for heating large marquees and buildings and multiple areas on large work sites.
Indirect diesel heaters are the industry standard heaters for marquees and events – we have even created a range of ‘Indirect heater packages’, which give you everything you need to heat a marquee, hall or other space with one of these indirect diesel heaters. (What's more - we even have FREE DELIVERY to the UK mainland on those heater packages!)