How should you choose an indirect-fired heater?

Choosing an indirect-fired heater begins with consulting our HVAC specialist engineers. They assess your project’s size, heating requirements, fuel availability, and environmental conditions to design a custom solution. Our heaters offer clean, fume-free air, making them ideal for enclosed spaces and moisture-sensitive applications.

How quickly can Aggreko provide commercial electric heaters?

An indirect fired heater uses a heat exchanger to warm air without direct contact with combustion gases. This warm air is subsequently delivered out into the space via ducting, while the exhaust fumes from the combustion process are expelled via a flue or chimney. The IDF provides 100% clean, dry, and fume-free heat. It’s ideal for enclosed spaces and moisture-sensitive environments.

What is the difference between direct-fired and indirect-fired heaters?

Direct-fired heaters heat air by burning fuel directly, releasing combustion gases into the air. Indirect-fired heaters use a heat exchanger, delivering clean, fume-free air, making them safer for enclosed or sensitive areas.

Indirect Diesel Fired Heater (IDF)

IDF for moderately high temperature rise applications where clean, dry air and reduced fire risk are essential

Industry-leading indirect diesel fired heaters

In environments with limited ventilation such as construction or manufacturing sites, heating requirements need to be carefully balanced against the impact on safety and key processes. When HVAC heaters introduce flames, fumes, and local emissions, they can quickly affect safety, efficiency, productivity, and product/service quality. Indirect heaters keep any flames and fumes away from the area you need to heat.

We’ve designed our indirect heater hire service to be flexible, robust and portable. What’s more, we know the importance of keeping noise levels to a minimum, so we build our equipment with industry-leading soundproofing.

Our indirect diesel fired heaters are built specifically for the rental industry. They have:

Fork pockets and lifting eyes for easy installation and manoeuvrability across your site
Fan-only functionality to ensure fresh air
Full safety controls and a fan-only cool-down period
Full internal heat regulator sensing for improved efficiency

Turnkey solutions
Proactive support
Safe and sustainable

Looking for IDF Heaters?

Deliver constant, reliable heating with our indirect fired heaters

At Aggreko, our indirect diesel heaters are portable and ideal for either localised or large-scale space heating. They're also fully fume-free with no additional moisture. Our indirect diesel heaters have high-quality fuel filters that provide trouble-free running, so you can stay focused on your job and leave the maintenance to us.

All of our indirect diesel heaters can be with an external thermostat for added control and fuel efficiency.

Safe heating with indirect diesel fired heater for enclosed spaces

Flexibility matters, which is why we’ve built our diesel heater fleet to be versatile. Our heaters can deliver clean, fume-free heat in a variety of different applications where people, animals and food are present, including:

Stadiums, halls and arenas, to provide comfort heating during events in enclosed spaces with limited ventilation.
Food and drink production and processing facilities.
Manufacturing facilities and warehouses, to keep storage temperature just right during peak production periods, or during HVAC system maintenance or downtime.
Shipping vessels and rigs, to ensure logistical and operational spaces are efficiently heated to the right temperatures.