Rex Nordic

Heater in a car repair workshop.

A 244 m² car repair workshop with six-meter-high ceilings is not the easiest space to keep warm during Finnish winters. Concrete walls, a partially insulated sheet-metal roof, and a frequently opened overhead door allow heat to escape easily. Thanks to the Airrex diesel space heater, the hall maintains a steady temperature of +16–17 °C throughout the winter.

Janne Mukkala, owner of JM-Konehuolto Oy from Finland, has been using the Airrex heater for six years – and wouldn’t switch to anything else. “The heater has worked flawlessly. It starts automatically when the door has been open and the temperature drops, and it quickly brings the warmth back. Reliability is what I value most.”

A fuel-powered heater that supports district heating in freezing weather

Before installing the Airrex, the workshop’s temperature fluctuated constantly during the winter. District heating alone wasn’t enough to keep the workspace comfortable, especially when the overhead doors were opened in sub-zero conditions. The Airrex diesel space heater provided the extra boost that was missing.

“Now we can open the door as often as needed without losing the indoor warmth,” says Mukkala. “Airrex works as a fuel-powered supplementary heater that reacts quickly to temperature changes and supports the district heating system.”

An energy-efficient heater like Airrex is an excellent choice for garages or workshops where efficient, odorless heat is needed without complicated installation. At JM-Konehuolto, the unit is used daily throughout the winter season, sometimes even overnight.

Airrex – easy to use and built to last

The Airrex infrared heater has been operating in the workshop for six years without a single service need. “I’ve never had to do anything to it – it just works.”

Thanks to its advanced oil burner technology and simple design, Airrex is nearly maintenance-free. The heater operates quietly and odorlessly, without smoke or fumes inside the building. We still recommend replacing the annual service kit to maintain optimal performance and energy efficiency year after year.

A satisfied user – warm workshop, minimal effort

Simple, reliable, and economical – that’s how many Rex Nordic customers describe the Airrex infrared heaters. “It has been the most reliable heating solution we’ve ever had,” says Mukkala. Airrex perfectly complements district heating and keeps the workshop warm all winter long, even though insulation isn’t perfect and the doors are opened frequently.

Who is the Airrex diesel space heater for?

The Airrex diesel space heater is ideal for garages, repair shops, warehouses, and workshops – any space that requires efficient heating and ease of use. Thanks to its mobility, the unit can be easily moved wherever warmth is needed. The fuel-powered heater also performs reliably in locations where electrical power is limited or traditional heaters fall short.

Facts: JM-Konehuolto Oy, Finland

Type of business: Car repair workshop
Facility size: 244 m² | Height 6 m
Structure: Concrete walls and floor, partially insulated metal roof
Heating solution: District heating + Airrex AH-800i diesel space heater
Usage: Daily during winter, occasionally overnight
In operation: 6 years | No maintenance required
Maintained temperature: +16–17 °C