Thousands of warehouses, factories, workshops and agricultural buildings across the UK are not connected to the mains gas network. For these off-grid buildings, oil-fired warm air heaters provide reliable, high-output heating without depending on external gas infrastructure. And with HVO renewable fuel now offering up to 90% lower carbon emissions as a drop-in replacement, oil-fired heating has a clear future.

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Why Oil-Fired Heating Still Makes Sense for Industrial Buildings

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• No mains gas required: Oil-fired heaters are completely independent of the gas grid. Store fuel on site and control your own supply, ideal for rural warehouses, remote workshops and off-grid industrial sites

• Fast, responsive heat: Modern oil burners deliver rapid warm-up and responsive output control, important in large buildings where temperatures need to come up quickly

• Lower capital cost: Oil-fired warm air heaters typically cost less to purchase and install than heat pump systems, with simpler infrastructure and faster installation

• HVO compatible: Modern oil-fired heaters run on HVO renewable fuel as a drop-in replacement, delivering up to 90% lower carbon emissions without replacing the equipment

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Hadar Fornax Oil-Fired Unit Heater

 

The Hadar Fornax is a 30 to 200 kW oil-fired warm air unit heater with a 304 stainless steel combustion chamber and heat exchanger. Built for demanding industrial environments, it runs on 35-second oil, 28-second oil or HVO renewable fuel.

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• 30 to 200 kW: Covers small workshops through to large warehouses and factories

• 304 stainless steel: Combustion chamber and heat exchanger built for long life in harsh conditions

• Fuel flexibility: 35-second oil, 28-second oil or HVO renewable fuel

• Free-blowing or ducted: Optional EC-motor centrifugal fan for ducted installation

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Hadar Zephr Cabinet Heater

For larger buildings requiring higher output, the Hadar Zephr cabinet heater is a multi-fuel heater ideal for large off-grid warehouses, distribution centres and production facilities.

 

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• Up to 300 kW (600 kW special order): High output for the largest warehouses and distribution centres

• Multi-fuel: Natural Gas, LPG, oil and HVO from one platform

• Free-blowing or ducted: EC fan drives for efficient air distribution

• Modulating burner: Adjusts output to match demand, reducing fuel consumption

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Where Oil-Fired Heating Makes Sense and the HVO Pathway

 

Oil-fired heating is particularly well suited to off-grid and rural buildings without mains gas, sites with existing oil storage and infrastructure where a retrofit is more cost-effective than a full replacement, buildings with high or variable heat demand that benefit from fast oil burner response and remote or temporary sites where a gas connection is not practical.

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The biggest development in oil-fired heating is HVO (Hydrotreated Vegetable Oil) as a drop-in replacement fuel. HVO delivers up to 90% lower lifecycle carbon emissions, burns more cleanly with less soot and fewer particulates and has excellent long-term storage stability. Both the Fornax and Zephr can run on HVO without major modifications, meaning off-grid businesses can significantly reduce their carbon footprint immediately by switching fuel rather than replacing equipment.

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If you are heating an off-grid warehouse, factory or workshop, contact Hadar Industries today for a free site survey and recommendation on the right oil-fired or HVO-compatible heating solution.