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Indirect fuel fired air heaters

Virtually maintenance free and able to operate in temperatures as low as -40°C, our range of commercial indirect fuel fired air heaters are ideal for the toughest of conditions. Being indirect fired, means clean air and no combustion or fumes, making for a suitable tent or temporary building heating solution. Discover the range and speak to an expert today.

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Why choose indirect fuel fired air heaters?

Some heaters, such as gas and oil systems, utilise the power of combustible fuels to warm air. While this can deliver large volumes of heat output quickly and efficiently, direct-fired heaters react directly with the air flow pumped into a space.

This is an incredibly efficient means of circulating warm air, but it does introduce the products of combustion, such as noxious fumes and CO2, within its air stream. These units are ideal for use outside, but to use them indoors, sufficient ventilation is required.

Indirect types of heaters also consume fuel as a source of energy. However, where this heating solution differs is the method in which it heats the air. Instead of combusting directly with the atmosphere, the flame is housed in a combustion chamber.

As the combustion chamber is warmed, the heat output is transferred indirectly through the use of a heat exchanger, producing a stream of warm, clean and fume-free air. This makes these portable heaters suitable for use inside as well as outside, at only a marginal loss in heat efficiency compared with direct-fired units.

Indirect fuel-fired air heaters are incredibly effective solutions used all over the world to fulfil numerous different roles, from construction site heating to refugee camp solutions. As a result, determining which type of indirect unit is the most cost-effective is impossible.

The economy and efficiency of any type of heater will depend on many factors. One example may include the role it must fulfil. Will it be used to keep staff and workers warm? Heat temporary structures? Dry wet paint or plaster? As well as this, it is also important to consider how large spaces are, where the unit is positioned and the reliability and maintenance costs associated with a unit.

All this is to say that the cost-effectiveness of an indirect-fired heater will vary from setting to setting. To maximise operational efficiency and limit fuel consumption, well-built units from trusted and experienced manufacturers often realise the best results.

Furthermore, Dantherm Group is also championing the development of efficient BioFuel-powered indirect-fired heaters. Rather than rely on diesel, our BioFuel models employ HVO 100 to produce the same degree of clean, fume-free heating power in a much more environmentally friendly and sustainable way.

With decades of experience within the world of climate control, our devices place an emphasis on reliability, sustainability, efficiency and usability.

To learn more about our full range of indirect fuel-fired heating systems, speak to a member of our expert team today.

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We believe in climate control built to your specifications

Every solution we deliver starts with a bespoke consultation. Our highly trained experts work to understand your unique requirements so you receive exactly what you need.

Manufactured in-house by our specialist engineers, we tailor solutions that meet your expectations, and instantly connect you with the right supplier.

Indirect fuel-fired air heaters: Frequently Asked Questions

What is an indirect fuel-fired air heater?

Indirect fuel-fired heaters are a unique type of system that utilise fuels, combustion chambers and heat exchangers to create vast amounts of warm, clean air rapidly.

How does an indirect fuel-fired air heater work?

To deliver warm air quickly and cleanly, indirect fuel-fired heaters first draw in cool air. At the same time, fuel is burnt to create a flame, which is enclosed within a sealed combustion chamber.

As air is drawn through and the system operates, the heat inside this chamber is efficiently transferred to the passing air. This creates warmth, without generating unwanted byproducts, such as water or CO2.

What type of fuel is used in an indirect fuel-fired air heater?

Indirect-fired heaters work by burning a variety of fuels, such as natural gas, propane or diesel.

What are the advantages of using an indirect fuel-fired air heater?

Indirect fuel-fired systems are the solution of choice for many commercial and industrial applications because:

  • The hot air produced is free from noxious fumes and potent smells
  • Units are able to deliver large volumes of warm air quickly
  • Flexible ducting can distribute warm air to multiple spaces at once
  • They can be safely used indoors and out

What are some common applications for indirect fuel-fired air heaters?

Indirect fuel-fired heaters are used in a wide range of industries to perform numerous tasks. Some of these include:

  • Heating tents and other temporary structures
  • Keeping teams warm on enclosed construction sites
  • Regulating the temperature of livestock on farms
  • Maximising the comfort of guests at outdoor events

What safety features should I look for in an indirect fuel-fired air heater?

To allow you to prioritise the health and wellbeing of your teams, we incorporate a wide range of safety features across our lineup of market-leading systems. These include:

  • Digitally controlled combustion, which enhances reliability and safety
  • Robust steel frames, a feature which protects those working around units
  • Limit thermostats, which helps to prevent units from getting too hot

Our European suppliers and servicing partners are also committed to supporting you and your solutions well into the future, helping you uphold strict safety standards for years to come.

Can I buy your indirect fuel-fired air heaters online?

For all of our indirect fuel-fired air heaters, VAT-registered companies can get a quote very quickly by pressing 'I want to buy' and inserting their enquiry and contact details.

However, you cannot carry out the entire purchasing process on our website. This is because due to the solution you wish to purchase and your area of residence, you may or may not need to buy through a local Dantherm Group representative. We will facilitate this when you use the 'I want to buy' button for the heater of your choice.

Can I bulk buy indirect fuel-fired air heaters for a large project?

Yes, we can fulfil bulk orders across our range of indirect fuel-fired air heaters for large, bespoke projects. Get in contact with our experts or go direct to your local Dantherm Group representative to discuss the exact needs of your project and how we can meet your requirements.

Can I speak to someone for technical advice to buy the right indirect fuel-fired air heaters?

At Dantherm Group, we pride ourselves on ensuring all solutions we supply are tailored to your precise needs. Our decades of experience and total control over the design and manufacture of our range of indirect fuel-fired heaters means we can provide you with bespoke, technical advice to ensure you receive the most efficient, effective and sustainable solution.

Reach out to our experts for a free, specialist consultation about your specifications so we can advise you on the most suitable solution.

What is your delivery time for indirect fuel-fired heaters?

This depends. For some standard indirect heaters, as well as their accessories and consumables, we offer day-to-day delivery. Larger or more complex orders will likely have a longer lead time.

For detailed information on when you can expect to receive the solutions you are interested in, please reach out to your local Dantherm Group representative.

Do you sell indirect fuel-fired air heaters to private individuals?

No. Dantherm Group indirect heaters included on this website are sold only to industry professionals either directly or via our extensive network of suppliers.

Do you provide support, servicing and parts for these indirect fuel-fired air heaters?

Yes. We have dedicated offices, suppliers and servicing partners based across Europe to provide timely, ongoing support across our entire range. You can get in touch through our contact form and we will make sure your enquiry is handled by the office or service partner best suited to your needs.

We also have an extensive network of spare parts dealers throughout Europe, who are geared to provide you with a complete stock of spare parts for your solutions. We are committed to catering to your needs and getting you the required parts as quickly and easily as possible.

How can I become a supplier to sell your indirect fuel-fired air heaters?

If you would like to become a supplier of Dantherm Group indirect fuel-fired air heaters, please refer to our Supplier Code of Conduct.

Get in touch with our team via email or over the phone if you have an enquiry, and we will get back to you at our earliest convenience.

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