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Diesel Heaters Overview

diesel heater Elmos Among the large selection of heaters, our attention was attracted by devices operating on diesel fuel. Today for you a short overview of the best models.


  1. Device and principle of operation
  2. Varieties of liquid fuel heaters
  3. Overview of diesel heaters from well-known manufacturers
  4. Expert recommendations for selection

The device and principle of operation of diesel heaters

Diesel heater deviceThe diesel heater consists of the following elements:

  • fuel tank;
  • combustion chambers;
  • fuel nozzle;
  • pipes for air intake;
  • spark plugs;
  • flame stabilizers;
  • impeller and fan motor;
  • filters for incoming and outgoing air;
  • pump;
  • controller.

Diesel is poured into the tank. Fuel enters the combustion chamber through a nozzle. To ignite the fuel, the air is blown up by a fan. The air must be clean and dust-free and filters are installed for this. Filters are used to clean the exhaust air from combustion products. The temperature regime is regulated by a controller and a flame stabilizer.

Varieties of liquid fuel heaters

Depending on the scope of application, diesel heaters are produced for garages, summer cottages, heating warehouses, houses, outdoor works, industrial premises, agricultural structures..

By the principle of heating, devices of direct and indirect action are distinguished. Direct heating devices are manufactured without special ducts or filters. Due to the fact that the combustion products of these heaters enter the premises, they are only used for repair work at low temperatures or in industrial premises. In modern models of diesel heaters of this type, an automatic flame control system is installed..

Indirect combustion devices purify the exhaust air using a chimney and an installed filtration system. This type of heater can be used for residential premises. They have a built-in flame control system, protection against overheating.

Infrared Diesel Heater

Diesel Infrared HeaterWhen eliminating accidents in power supply networks, heat supply networks or on pipelines in the industrial sector, a diesel infrared heater is often used. It is wall or ceiling mounted and is great for heating buildings with high ceilings. Infrared heaters can be seen in the winter areas of restaurants and cafes..

The principle of operation of an infrared device is similar to exposure to sunlight. Diesel fuel, when burned, generates heat rays that affect the surrounding objects, but do not warm up the air itself. Heat is transferred from heated objects to the air space.

Infrared devices differ from a simple diesel heater by installed heat reflectors and ray emitters.

Air Diesel Heater

HydronicExperts call this type of heaters heat guns. The body of the device is made of durable metal to provide protection against mechanical damage and overheating. The heater works on the principle of a simple fan. The room is heated by a moving stream of heated air.

The air in the room will be warm as long as the heat gun is on. After turning it off, the temperature drops rapidly.

Overview of diesel heaters from well-known manufacturers

German brands of diesel heatersKroll Gk 40

Kroll Gk 40

Perfect for industrial premises: warehouses, construction sites, production halls. Highly reliable autonomous heating is provided by fuses and pneumatic spray. Diesel heaters produce 43 kW and up to 1050 m3 / h of heated air. Manufacturer’s warranty – 2 years. Fuel tank capacity – 46 l.

Fugar Passat 35 

The device is used to heat rooms that are not too large. German equipment is notable for good quality of operation, installation of a pneumatic spray gun on the burner to reduce diesel consumption. The manufacturer gives a one-year warranty. The performance of the autonomous diesel heater is 30 kW.

Infrared French heater Caiman VaL6

Infrared diesel heater Caiman VaL6The brand has a high efficiency of 99.9%. This is the best heater for diesel fuel, during which there is no noise, smell, smoke, dust, and fire safety has 3 modes. Powered by both diesel and kerosene. The manufacturer guarantees three years of flawless operation. It works in automatic mode for 13 hours. The device is intended for professional use..

Italian heater brand Biemmedue

Diesel heater BiemmedueThe indirect heating device is used for residential premises. Design features – located on the electronic panel, high mobility rate, zero heating of the outer casing, flame control, overheating protection. The fuel tank holds 42 liters. The manufacturer’s warranty is 12 months. The capacity is 22 kW.

Korean diesel heater manufacturer

Korean brand Ayrex AN 300

Ayreks AN 300The devices are designed for heating large areas. Infrared heaters for liquid fuel have their own characteristics:

  • a sensor for diesel consumption control is installed;
  • the tube register is covered with antipyretic materials;
  • minimum noise performance;
  • easy movement;
  •  timer for starting and shutting down the device; remote control;
  • does not burn oxygen;
  • protective grilles.

Capacity is 14 kW.

Korean brand Optima DSPI-90

Optima DSPI-90The device is used to heat rooms up to 100 m2. Diesel Euro 4 is suitable as fuel.

Technical features of the brand:

  • remote control;
  • fuel combustion is 100%;
  • manual heating control from 0 to 40 degrees;
  • the internal parts of the device are coated with high quality catalysts;
  • can be used for heating residential premises;
  • has fire protection in 3 modes;
  • minimal noise effect;
  • environmentally friendly device.

The Optima heater is perfect for heating a summer cottage because during its operation there is no noise and smell, minimal electricity consumption, there is a touch display, sound notification in case of an emergency, the possibility of climate control.

Video review of the OPTIMA DSPI-120 diesel heater

Expert recommendations for selection

Diesel infrared heater deviceIf you do not know how to choose a diesel heater, heed the advice of experts:

  • First you need to decide on the choice of a diesel heater by the type of heating.
  • In living quarters, infrared diesel heaters placed on the wall or ceiling are excellently used..
  • To determine the power of the device, correctly calculate the heating area.
  • Study the specifications carefully and make comparisons between different models.
  • For non-residential premises, give preference to a device with good overheating protection and an automatic control system.
  • Choose a heater with the highest efficiency.
  • The body of the heater must be made of good material.
  • Ask the seller to issue a warranty card.

Video review of diesel heat guns Aurora Diesel Heat 30 – 40

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