AH 45 helical gas heater

AH 45 helical unit heater for natural gas G20 or propane gas G31 – SEET

The AH 45 helical unit heater operating on G20 natural gas or propane gas is a high-performance heating solution, designed to provide controlled thermal comfort in tall or large professional buildings.

Developed to meet current regulatory requirements, the device complies with the ErP 2021 directive. It is available in five versions, covering a power range from 13 to 80 kW. Its two-stage heating operation allows for precise adjustment of heat distribution according to needs, without using a condensing function.

Efficient combustion and emission control

The AH 25 is equipped with a high-efficiency multi-flame burner, classified as NOx Class 5, ensuring low pollutant emissions and reliable combustion. The two-stage gas solenoid valve modulates power to 52% or 100%, ensuring a progressive temperature increase. Sealed combustion, combined with automatic ignition, enhances safety and operational stability.

Heat exchange and air diffusion

The seamless, four-pass tubular heat exchanger has a thickness of 1.5 mm, ensuring excellent thermal transmission and high durability. The helical fan with crescent-shaped blades provides homogeneous distribution of hot air, even in large volumes.

Easy installation and regulation

Designed as a standalone heating system, the AH 25 gas unit heater can be installed in a balanced flue configuration, on a facade or on the roof. Its electronic board compatible with a pilot wire simplifies regulation and integration into existing thermal management systems, while ensuring precise control and quick implementation.

Recommended applications

• Industrial buildings

• Logistics warehouses

• Workshops and garages

• Commercial premises

• Multipurpose halls and sports facilities

Robust and suitable for intensive use, the AH 25 helical unit heater for G20 natural gas offers durable and consistent performance. It is a reliable solution that complies with current standards for professionals seeking efficient, modular, and secure heating.