Review of the best according to the editorial board. On the selection criteria. This material is subjective and does not constitute advertising and does not serve as a purchase guide. Before buying, you need to consult with a specialist.

Heat guns are often chosen to dry out a renovated room or heat a large area. Indirectly heated units have a triple heat exchanger where diesel fuel is burned in a closed, not open chamber, which protects the room from carbon dioxide and smoke saturation. To supply fresh air, it is sufficient to periodically ventilate or connect a chimney that brings combustion products to the street. When choosing a heat gun, it is important to consider performance, safety, and availability. Let's take a look at the 9 best models with different powers, which were selected by experts based on reviews and characteristics, which will make it easier to choose for a specific task.

Rating of the best indirect heat guns

Nomination	a place	Name of product	price
The best heat guns of indirect heating with a power of 50-90 kW	1	Frico HDI85 (90.6 kW)	RUB 111,900
	2	Ballu BHDN-80 (80 kW)	RUB 89,990
	3	Zitrek BFG-70B (70 kW)	RUB 59,990
The best heat guns of indirect heating with a power of 20-40 kW	1	KROLL MA37 (40 kW)	RUB 114,264
	2	Ballu BHDN-20 (20 kW)	RUB 28,700
	3	ZUBR DPN-K9-21000-D (21 kW)	RUB 29 720
	4	Profheplo DK-21N (21 kW)	RUB 33,638
	5	Master BV 77 E (20 kW)	RUB 59 800
	6	NeoClima NPI-20 (21 kW)	RUB 27,916

The best heat guns of indirect heating with a power of 50-90 kW

First, let's consider heat guns, which have increased productivity due to the power of 50-90 kW. Such equipment is suitable for heating large hangars, exhibition pavilions or workshops with an area of ​​500-1000 m².

Frico HDI85 (90.6 kW)

Rating: 4.9

In the first place, experts placed the heat gun from Frico. Indirect heating is carried out in a completely closed chamber, and the surface of the case does not heat up over 40 degrees. The machine has high wheels with rubber tires for easy transport on a flat floor. There is a handle for transporting the heat gun. The combustion of the flame is monitored by an electronic stabilization system, so the equipment is safe. There is a thermostat on the dashboard that can be connected remotely via the connector and brought out to a convenient place. Users in the reviews like that the indirect heating heat gun has a double electrode system that provides 100% diesel fuel combustion.

This is the best heat gun in terms of reliability. It uses a high-pressure pump from Dantos (Denmark) for fuel supply, which provides stable performance and even thrust. In terms of resource, these are the most hardy high-pressure fuel pumps, so the indirect heating device will not require additional investments for repairs within 5-8 years. Since the fuel pump is expensive, it is important to look at the model for those who wish to spend money only once.

Advantages

• there is a transparent filter with a fine mesh for additional cleaning of diesel fuel;
• rubberized wheels;
• easy to transport;
• flame control by photocell.

disadvantages

• high price;
• there is no device for winding the cable;
• burns 7.17 liters per hour.

Ballu BHDN-80 (80 kW)

Rating: 4.8

In second place is a heat gun from a Russian brand with a capacity of 80 kW and designed for an area of ​​800 m². Electric ignition with a button starts the combustion of fuel and indirect heating. The device is equipped with a fuel tank with a capacity of 68 liters, which is enough for 10 hours of continuous operation. During summer, the appliance fan can be used cold to blow in cool air. The heat gun pumps 3300 m³ per hour. The indirect heat exchanger has three channels and provides an efficiency level of 82%. For its manufacture, heat-resistant chromium-nickel steel is used, so the element works up to 10 years without breakdowns, which customers like in reviews. The combustion of the flame is controlled by a photocell.

This indirectly heated heat gun was rated by experts as the best in terms of instantaneous efficiency. After pressing the button and igniting the burner, the temperature on the surface of the outlet neck immediately reaches 75 degrees. After 20-30 seconds, this figure rises to 175 degrees. The heat gun has the fastest “response” in the category, which accelerates the warming up of the room, which stood without heating.

Advantages

• there is a device for winding the power cord;
• digital display for temperature control;
• rubberized wheels;
• additional fuel filter.

disadvantages

• high flow rate – 6.4 l / h;
• the cost is about 90,000 rubles;
• short handle.

Zitrek BFG-70B (70 kW)

Rating: 4.7

In third place is an indirect diesel apparatus with a power of 70 kW, designed for rooms with an area of ​​600-700 m². The fan of the heat gun blows out up to 2000 m³ per hour. On the side there is a control panel with a start button and a built-in thermostat. Temperature readings are shown on a digital display.

In the reviews, buyers are satisfied with the absence of an unpleasant odor that other heat guns have when starting up, and the relatively low cost among similar indirect heating heaters from other brands. The gun is capable of operating from diesel fuel or kerosene. The heater has dimensions of 1275x505x795 mm and weighs 65 kg. During operation, a 220 V connection is required to power the electronic equipment and the fan. The latter consumes 750 watts per hour.

We recognized the heat gun as the best for the duration of work. It can carry out its indirect heating continuously from one refueling for 17.5 hours. This is possible due to the largest tank in the category with a capacity of 70 liters.

Advantages

• digital display;
• compartment for winding the cord;
• convenient button start;
• housing made of durable sheet steel.

disadvantages

• the black casing becomes covered with dust faster;
• thermostat with a mechanical principle of operation.

The best heat guns of indirect heating with a power of 20-40 kW

This category of heat guns is much more compact than the previous one and is suitable for heating small workshops, garages, rooms under repair (drying plaster, putty, etc.), summer cottages.

KROLL MA37 (40 kW)

Rating: 4.9

One of the most efficient indirect heating units in this category is the KROLL MA37. Its power reaches 40 kW, which makes it suitable for an area of ​​300-400 m². The fuel consumption is 3.39 liters per hour, and the fuel tank holds 51 liters. At a distance of 1 m from the nozzle, the air flow temperature reaches 60 degrees. To prevent the fire from extinguishing, a photocell monitors the process. A fuse is provided for the safe operation of the heat gun in automatic mode. The owners in the reviews are satisfied with the diesel preheating system in the filter element, which makes starting easier and increases the stability of the process with indirect heating.

This heat gun has a very powerful air flow – 2050 m³ / h, which is in performance at the level of the “older” models. This is made possible by a high-pressure fan and a tapered outlet nozzle. This design allows you to create an accelerated airflow, contributing to better drying of the walls with a close installation of the heater.

Advantages

• there is a fuse for safe operation;
• flame combustion is controlled by a photocell;
• automatic cooling;
• air consumption 2050 m³ / h.

disadvantages

• fuel filter without a transparent flask, so its condition is not visible;
• there is no device for winding a network cable;
• the thermostat will need to be purchased separately.

Ballu BHDN-20 (20 kW)

Rating: 4.8

A heat gun from a Russian manufacturer is equipped with an electric ignition and starts thermal heating by pressing one button. Temperature control is carried out by means of a mechanical thermostat, which has a scale with degree indicators. The device is suitable for an area of ​​200 m² and produces an air volume of 500 m³ per hour. The heat gun is equipped with its own tank with a capacity of 24 liters. There is a separate start of the fan rotation without heating. The device has dimensions 89x67x44 cm and weighs 22 kg. For transportation of the heat gun, rubber wheels and a handle are provided. The chimney is connected through a stainless steel pipe. In the reviews, buyers are satisfied with the economical consumption of diesel fuel, which is 1.63 liters per hour.

Our experts liked the heat gun by the protection of the body from water. The casing is hermetically sealed and reliably protects the electrical parts and the combustion chamber from moisture. This allows the indirect heating device to be operated outdoors in the rain (construction site, drying the facade under a stretched film) or in rooms with high humidity.

Advantages

• built-in thermostat with a temperature indicator on a scale;
• network diode;
• own wheels for transportation and stand;
• economical fuel consumption – 1.63 l / h.

disadvantages

• no screen;
• there are no hooks for winding the cable;
• it is impossible to connect an external thermostat and bring the regulator to a convenient place.

ZUBR DPN-K9-21000-D (21 kW)

Rating: 4.7

Diesel cannon with indirect heating has a power of 21 kW, with a fan consumption of 300 W / h and a fuel consumption of 2 l / h. The unit already has a thermostat, which can be made remote by connecting to the wire connector. The heat gun has dimensions of 1050x425x605 mm and a mass of 43 kg. The capacity is 1000 m³ / h, so the heat quickly spreads through the room. It is optimal to use the device for heating a room with an area of ​​200 m². Protective equipment monitors the presence of a flame and cuts off the supply of diesel fuel if the fire is accidentally extinguished. Judging by the reviews, the owners of the device with indirect heating are satisfied with the operation of the electronic temperature controller, which helps to maintain the set values ​​more accurately than the mechanical counterparts.

This heat gun is the best for the warranty period provided by the manufacturer. The company is ready to repair the indirect heating device free of charge and change parts at its own expense within 5 years. No one else on our list has such an indicator (the usual competitors' warranty is valid for 1-2 years).

Advantages

• digital screen;
• capacious 55 l tank;
• there is overheating protection;
• built-in electronic temperature controller.

disadvantages

• short power cord;
• there is no cable winding device.

Profheplo DK-21N (21 kW)

Rating: 4.6

The indirectly heated model has a power of 2100 W and drives through itself 1000 m³ of air per hour. The heater is equipped with a voltage stabilizer and protects the electronics from surges. The flame is ignited automatically (ignited by a candle) when the button is pressed. The device is equipped with a thermostat and it is possible to connect an external regulator to control the temperature from a convenient place. The heat gun weighs 43 kg and has dimensions of 1080x510x685 mm. Reviews show that it is capable of operating at a reduced input mains voltage from 170 V.

The heat gun is the best in the category with a power of 20-40 kW due to the duration of continuous operation with one tank filling. Thanks to the fuel tank with a capacity of 55 liters, the indirect heating device can operate for 34 hours. An economical burner consumes 1.6 l / h of diesel fuel. The heat gun is worth paying attention to those who need long-term drying or heating of the room, but it is not possible to monitor the device and add fuel to it.

Advantages

• 82% efficiency thanks to 3-pass heat exchanger;
• controlled electronic ignition;
• connection of an external thermostat is possible;
• works at low voltage in the network.

disadvantages

• there is no power regulation;
• no display.

Master BV 77 E (20 kW)

Rating: 4.5

The heat gun from the Italian manufacturer has an attractive design with rounded shapes. Indirect heating works in a three-circuit heat exchanger, and diesel oil or kerosene can act as fuel. The fuel tank holds 36 liters, and the consumption is 1.67 liters per hour. The owners in the reviews report that the indirect heating device is functioning properly – there are no spontaneous stops. Users also like that the design provides two filters (in the pump and between the tank and the burner), which protects the device from low quality diesel fuel.

Experts singled out the heat gun as the best because of the possibility of equipping with a special channel produced by the Italian manufacturer for this model. A flexible, huge hose is put on the nozzle, which allows you to take the heater out into the street, and supply only hot air to the room. The waterproof housing of the heat gun allows the heater to be operated in the rain. There is no noise and smoke in the room, and condensation does not drip from the metal.

Advantages

• Beautiful design;
• moisture-proof design;
• temperature control is provided;
• high wheels;
• electric ignition.

disadvantages

• high price;
• low handle without hooks for winding the cable.

NeoClima NPI-20 (21 kW)

Rating: 4.4

The review of the best heat guns operating on the principle of indirect heating is completed by an apparatus from the domestic brand NeoClima. The model generates a thermal power of 2100 W, making up 1000 m³ of air per hour. The burner burns 1.63 liters of diesel fuel during this time. The fuel supply is stored in a tank with a capacity of 41 liters. The heat gun is equipped with an electric ignition and a temperature controller. It takes up little space on the floor, since its dimensions are 108x68x51 cm. The device weighs 40 kg. The flame is controlled by a photocell. The owners in the reviews like the quick access to operating temperature and the consumption of electricity in the amount of 300 W per hour.

The heat gun is considered the best because it has a very affordable cost. Despite the budget, the product with an indirect heating source is equipped with a heat exchanger made of stainless heat-resistant steel AISI310S and a combustion chamber made of a similar material, which prolongs their resource. The model has a built-in voltage regulator, fuel level indicator and a small display.

Advantages

• high pressure fan with pressure gauge;
• fuel level indicator;
• Efficiency 82%;
• three-way heat exchanger;
• transparent filter.

disadvantages

• sold without mains plug;
• only 1 year warranty;
• small diameter wheels do not pass well through the thresholds in doorways.

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Attention! This rating is subjective and does not constitute an advertisement and does not serve as a purchase guide. Before buying, you need to consult with a specialist.