Warm Air Heater

Optimize your industrial volume with an efficient warm air generator

Choosing a warm air generator for a workshop, factory, or agricultural building isn't just about kilowatts; it's a strategic decision that impacts your profitability and the comfort of your team. At Climatik, we support professionals in implementing high-efficiency heating systems capable of handling very large volumes. With our expertise in thermal engineering, our advisors guide you toward solutions from leading manufacturers to ensure rapid and controlled temperature rise, regardless of the harshness of winter.

Understanding the three types of warm air generators

Fixed warm air generator: the sustainable solution for buildings The fixed warm air generator, often installed vertically or suspended horizontally, is the cornerstone of permanent industrial heating. Its main advantage lies in its ability to be connected to a chimney flue and a duct network to distribute heat evenly throughout the building. Fueled by oil or gas, it offers enormous heating power, allowing it to maintain a constant temperature in warehouses spanning several thousand square meters. This is the ideal option for structures where heating is required throughout the winter season, offering thermal efficiency often exceeding 90% thanks to high-tech heat exchangers.

Indirect combustion warm air generator: the safety of clean air The indirect combustion warm air generator is essential whenever the public or personnel are permanently working in a closed, poorly ventilated space. Its great advantage is the complete separation between the combustion circuit and the heated air: combustion gases are evacuated via a duct, while only clean, odorless warm air is blown into the room. This technology is particularly popular for heating event tents, sports halls, or mechanical workshops. Although it requires the installation of a smoke exhaust, it guarantees absolute health safety and full compliance with indoor air quality regulations.

Direct combustion warm air generator: power and mobility The direct combustion warm air generator is the emergency or construction site heating solution par excellence. Unlike the indirect model, the flame is in direct contact with the airflow, resulting in 100% efficiency. Its great advantage is its compactness and ease of movement, making it the preferred tool for drying slabs, thawing machinery, or heating very open spaces (agricultural hangars, structural work sites). The essential point to remember is that it releases combustion gases into the heated space; it therefore requires significant natural ventilation to replenish oxygen and evacuate residual moisture produced by combustion.

Which technology for your industrial environment?

For a manufacturing workshop or an automotive garage, opt for a fixed indirect combustion generator. You benefit from perfectly healthy air for your employees, silent operation, and an installation that takes up no floor space if you choose a suspended version.

For a storage hangar or an open agricultural building, the direct combustion generator (often called a heat cannon) is the most relevant choice. It offers instant heating power at the best cost and perfectly withstands dusty environments or frequent drafts.

For event companies or structure rental companies, the mobile indirect combustion generator is the norm. Its ability to remain outside the marquee while sending hot air via flexible ducts allows for discreet heating of receptions, without engine noise and without any risk related to combustion gases for guests.

Diffusion modes: direct blowing or duct network?

Beyond the energy source, how you distribute heat is crucial. Direct blowing is perfect for localized work areas or single, unpartitioned volumes. It is the simplest and least expensive solution to install.

Meanwhile, diffusion via a duct network allows the airflow to be divided to heat several rooms simultaneously or to distribute heat to all corners of a very large hall. This method avoids overheating zones near the appliance and ensures a perfectly stable temperature throughout your workspace.

Climatik's expertise for your volume heating

At Climatik, we don't just sell machines: we dimension your heating solution according to your building's insulation and geographical area. An undersized generator will operate in overdrive, increasing your maintenance and consumption costs.

Our technical team helps you choose between fuel oil, propane gas, or natural gas, taking into account your storage constraints and budgetary goals. All our warm air generators are factory tested and meet the strictest European standards for emissions and safety, with fast delivery throughout France to meet your urgent needs.

Questions about Warm Air Heater?

Our experts answer your questions.

Which hot air generator is the most economical to use?

For large volumes, fuel cost is the decisive factor.

Natural gas: the champion of fixed installations

If your building is connected to the city gas network, a fixed gas generator is unbeatable. The cost per kWh is the lowest on the market, and maintenance is reduced.

Fuel oil: mobile power

For construction sites or isolated hangars, fuel oil remains the benchmark. Although the price fluctuates, its energy density allows for heating immense volumes with complete autonomy, without relying on a heavy gas installation.

Electric: for small volumes only

A 15 kW electric generator is perfect for a 100 m² workshop but would become a financial black hole for a 1000 m² warehouse.

Why choose indirect rather than direct combustion?

It's a matter of health and safety before it's a matter of price.

Direct combustion: for open spaces

The efficiency is 100% because all the heat remains in the room. But so do the combustion gases. It is reserved for open construction sites, ventilated greenhouses, or drying materials.

Indirect combustion: for occupied spaces

Burned gases are vented through a chimney. The blown air is 100% clean. This is mandatory for enclosed workshops, marquees open to the public, or factories. The efficiency is 90%, but safety is total.

Can one generator heat multiple rooms?

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How do I calculate the power needed for my shed?

Forget simplistic calculations, three factors dominate.

Volume (V) and Insulation (K)

An uninsulated sheet metal shed requires 3 times more power than a modern building meeting RT2020 standards. On average, count 30 to 40 watts per cubic meter for a poorly insulated building, and 15 to 20 watts for an insulated building.

Temperature difference (Delta T)

If you want 18°C inside when it's -5°C outside, your needs are much higher than simply keeping it frost-free at 5°C. A 20% oversizing is often recommended to ensure a rapid temperature rise in the morning.