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Airrex

AH-300i

Diesel-fuelled infrared space heater with wifi control

Last reviewed 13 September 2026

Where to hire or buy the Airrex AH-300i

Specifications

Heat output15kW (51,000 BTU/hr)
FuelDiesel
CoverageUp to 1500m3 in a ventilated space
ControlWi-Fi / 4G smartphone connectivity plus thermostat
PumpBattery-powered fuel pump included

Figures taken from an established dealer: source. Specifications change by model year and configuration - confirm with the supplier before relying on them.

Who uses it

A mid-sized diesel infrared heater built for sheds, workshops and large tents where mains gas or ducted warm air is not practical. Its wifi control lets a site manager start it before arriving on a cold morning.

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GetBrent is an independent directory and is not a dealer for, nor affiliated with, Airrex. Model and brand names are the trademarks of their owners, used here only to identify the products they refer to.