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Indirect Space Heaters



Indirect fired space heaters provide large volumes of 100% clean, fume-free, and warm air. This makes them ideal for heating indoor, enclosed, and poorly ventilated areas safely and effectively, such as enclosed workshops, halls, marquees, and other areas where there are people and animals.

Indirect Space Heaters

Portable heaters for enclosed spaces

Indirect fired space heaters are designed for heating enclosed, indoor, and poorly ventilated spaces. They produce only clean, fume-free, warm air, so they can be used for heating halls, marquees, galas, event tents, workshops, farmhouses, and a range of other indoors spaces safely.

These heaters can be fuelled using diesel, heating oil, paraffin or kerosene. The flame burns inside a combustion chamber and warms a heat exchanger. A fan at the back of the unit draws air in and passes it around the heat exchanger. The temperature of the air rises as it blows over the heat exchanger. The clean warm air blows out of the front of the heater while fumes are expelled out of the top of the unit through the flue.

These portable heaters can be placed outside the area you want to heat, and the clean, warm air can be ducted inside through flexible hoses. They can also be used as a more permanent heater, by placing the unit indoors and installing a flue to exhaust the fumes outside through a wall or roof.

Indirect oil fiired heaters are highly versatile pices of equipment. As the warm air is 100% clean and safe, you can use them in sensitive areas, such as food processing factories, oil refineries, foundries, or storage centres. With the output warm air also being dry, you can use them for drying applications and frost protection.

National Heater Shops has an extensive selection of indirect-fired diesel space heaters from trusted brands such as Master, Arcotherm, Heylo, and Thermobile. So, whether you need to heat a small workshop or large barn, we can find the perfect product for your needs. We have also created a range of heater package deals which include everything you need to get started right away, including FREE DELIVERY to mainland UK.