Best Diesel Heaters of 2025

The HCALORY Diesel Heater offers rapid heating, reaching 100 degrees in under 10 minutes, making it perfect for quickly warming up your vehicle or workspace. Its energy conservation feature utilises a low-noise fuel pump, ensuring minimal fuel consumption while providing nearly 10 hours of continuous heat from its 5L tank. With multiple control options including remote control, LCD panel, and a Smart APP, you can easily adjust settings for your convenience. The heater's highland mode allows it to function effectively at altitudes up to 18,045 feet, ensuring reliable heating wherever you are.

The Hyundai Diesel Heater is an excellent choice for efficiently heating medium-sized garages, factories, and workshops. With its impressive 70,000 BTU output, it distributes heat quickly and evenly across an area of approximately 496m³, ensuring comfort in larger spaces. You'll appreciate the low fuel consumption, making it a cost-effective solution for your heating needs. Plus, the thermostat allows you to easily adjust the temperature to your liking, providing you with control over your environment.

The JCB Diesel Space Heater boasts a powerful 63KW output, ensuring efficient heating for spaces up to 1300m³. With a low fuel consumption of just 5.8 litres per hour, you can enjoy significant savings while staying warm. The adjustable heat settings, complemented by a built-in thermostat, allow you to customise the temperature to your liking. Additionally, the fitted flame cone effectively directs heat to specific areas, making it an ideal choice for focused heating needs.

The Dirty Pro Tools Heater is designed for efficient heating in workshops and industrial spaces. With its large 30 kw stainless steel combustion chamber and fan cooling, it ensures even distribution of warmth, making your environment more comfortable. You can use either diesel oil or kerosene, providing flexibility depending on your fuel availability. The built-in flame sensor and automatic overheat protection enhance safety, giving you peace of mind while you work. Additionally, the included wheels make transportation easy, allowing you to move the heater wherever it’s needed.

The Draper Infrared Heater is a high-performance, low-noise solution for heating spaces efficiently. Its combination of an in-line fuel filter, electromagnetic pump, and internal combustion chamber ensures reliable ignition and powerful heat output. This makes it ideal for use with both kerosene and diesel, catering to your specific fuel preferences. Whether you're working in open or semi-open environments, this heater provides the warmth you need to stay comfortable and productive.

The Sealey AB458 Heater is designed to meet rigorous standards, ensuring reliability and performance. Its clean burning feature means you can enjoy warmth without harmful emissions, making it an eco-friendly choice. Additionally, the heater is fitted with a safety cut-out, providing peace of mind as it automatically shuts off in case of emergencies. This combination of efficiency and safety makes the Sealey AB458 Heater an excellent option for keeping your greenhouse warm and secure.

The Aprafie Diesel Heater is an efficient 8KW heating solution for your vehicle, operating on diesel fuel. It pre-heats your engine and defrosts windows quickly, saving you valuable time on cold mornings. This heater provides instant warmth, with cool air being heated rapidly in the combustion chamber. You can enjoy a restful night's sleep thanks to its quiet operation. Additionally, its energy efficiency ensures you stay warm without breaking the bank on fuel costs.

The Draper 04175 Space Heater is designed for high efficiency, featuring a compressor pump that ensures quick and even heating. You will appreciate the great fuel economy it offers, saving you money over time. Constructed from high-quality steel, it boasts a protective gloss black powder coated finish that enhances its durability. Plus, its steel frame with wheels makes it easy to manoeuvre, allowing you to position it wherever you need warmth in workshops, garages, factories, or jobsites.

The Exokugo Heater Cover is designed specifically for 50,000 BTU and 80,000 BTU kerosene and diesel forced air heaters. Its heavy-duty waterproof 600D Oxford cloth ensures your heater is well protected against water, dirt, dust, smoke, and odours, significantly extending its lifespan. The cover features two side handles, making it easy for you to install and remove when needed. Additionally, the elastic hem cord and buckle strap allow for a snug fit, ensuring your heater remains covered securely, no matter the weather conditions.