9 best heat guns indirect heating

To dry premises under repair or to heat a large area, heat guns are often chosen. Apparatuses with indirect heating have a triple heat exchanger, where diesel fuel is burned in a closed rather than open chamber, which protects the room from saturation with carbon dioxide and smoke. For fresh air is sufficient to periodically ventilate or connect the chimney, which outputs products of combustion into the street. When choosing a heat gun, it’s important to consider performance, safety, and equipped with features. Let’s take a look at the 9 best models with different power, 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 heating guns

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

First we will consider heat guns, which have an increased capacity due to the power of 50-90 kW. Ideal for heating large hangars, showrooms or workshops with 500-1000 m2 of floor space.

Frico HDI85 (90.6 kW)

Rating: 4.9

In the first place, the experts placed the heat gun from Frico. Indirect heating takes place in a completely closed chamber, and the surface of the housing does not get warmer than 40 degrees. The unit has high wheels with rubber tires, making it easy to transport on a flat floor. A handle is provided for transportation of the heat gun. The combustion of the flame is monitored by an electronic stabilization system, so the equipment is safe. On the dashboard there is a thermostat that can be connected remotely via a connector and output in a convenient location. Users in the reviews like the fact that the heat gun indirect heating system has a twin electrode, which provides 100% combustion of diesel.

This is the best reliable heat gun. It uses a high-pressure pump from Dantos (Denmark) for the fuel supply, which ensures stable performance and even draught. According to the resource is the most enduring HPF, so the unit indirect heating will not require additional investment for repairs over 5-8 years. Since the fuel pump is expensive, the model is important to consider for those who want to spend the money only once.

Advantages

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

Disadvantages

• high cost;
• No cable winding device;
• burns 7.17 l.

Ballu BHDN-80 (80 kW)

Rating: 4.8

In second place, the heat gun from the Russian brand, which has a capacity of 80 kW and is designed for an area of 800 square meters. Electric ignition with a button starts the combustion of fuel and indirect heating. The device is equipped with a fuel tank capacity of 68 liters, which is enough for 10 hours of continuous operation. In the summertime, the fan of the device can be used without heating, to supply cool air. During one hour the heat gun blows up 3300 m³. Indirectly heated heat exchanger has three channels and provides an efficiency level of 82%. Heat-resistant chromium-nickel steel is used for its manufacture, so the element works up to 10 years without failure, which is liked by buyers in the reviews. Combustion of the flame is controlled by a photocell.

This heat gun with indirect heating experts called the best in terms of instant efficiency. After pressing the button and ignition of the burner, the surface of the outlet immediately reaches a temperature of 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 heating of the room that was standing unheated.

Advantages

• There is a device for winding the mains cord;
• digital display for temperature control;
• rubber wheels;
• additional fuel filter.

Disadvantages

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

Zitrek BFG-70B (70 kW)

Rating: 4.7

The third place is occupied by the diesel unit of indirect heating with the power of 70 kW, designed for the premises with the area of 600-700 square meters. 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 pleased with the absence of an unpleasant odor, which is common in other heat guns when starting up, and a relatively low cost among similar indirect heaters of other brands. The gun can operate using diesel fuel or kerosene. Heater has the dimensions 1275x505x795 mm and weighs 65 kg. For operation, a 220 V mains connection is required to power the electronic equipment and fan. The last one consumes 750 W per hour.

We recognized the heat gun as the best on the duration of operation. It is able to heat indirectly continuously from one refill for 17.5 hrs. This is made possible by the largest tank in the category, with a capacity of 70 liters.

Advantages

• digital display;
• cord winding compartment;
• Easy to start with the button;
• case made of durable sheet steel.

Disadvantages

• The black cover gets covered with dust faster;
• thermostat with mechanical operating principle.

The best heat guns with indirect heating capacity 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, renovation rooms (drying plaster, putty, etc.). d.), cottages.

KROLL MA37 (40 kW)

Rating: 4.9

One of the most powerful units in this category is the KROLL MA37. Its output reaches 40 kW, making it suitable for an area of 300-400 square meters. Fuel consumption is 3.39 liters per hour and a fuel tank capacity of 51 liters. At 1 meter from the nozzle, the temperature of the air stream reaches 60 degrees. To prevent the fire from going out, the process is monitored by a photocell. A fuse is provided for safe operation of the heat gun in automatic mode. The owners in the reviews are satisfied with the system of diesel preheating in the filter element, which facilitates start-up and increases the stability of the process with indirect heating.

This heater has a very powerful airflow – 2050 m³/h, which is at the level of “older” models. This is made possible by a high-pressure fan and a narrowed outlet nozzle. This design allows an accelerated airflow that results in a better drying of the walls when the heater is installed close to the ground.

Advantages

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

Disadvantages

• The fuel filter is without a transparent bulb, so you can not see its condition;
• there is no device for winding the mains cable;
• You must buy the thermostat separately.

Ballu BHDN-20 (20 kW)

Rating: 4.8

The heat gun from the Russian manufacturer is equipped with an ignition switch and starts the heating by pressing a button. The temperature is regulated by a mechanical thermostat, which has a scale with indicators of degrees. The unit is suitable for an area of 200 square meters and produces 500 m³ of air volume per hour. The heat gun has its own tank with a capacity of 24 liters. Separate fan start without heating. Overall dimensions 89x67x44 cm and weight 22 kg. Rubber wheels and a handle are provided for transportation of the heat gun. The chimney connection is made through a stainless steel pipe. In their reviews, customers are satisfied with the economical fuel consumption of 1.63 l per hour.

Our experts are convinced by the water protection of the gun. The housing is hermetically sealed and reliably seals electrical parts and the combustion chamber from humidity. It allows to use the device for indirect heating outdoors under the rain (construction site, facade drying under the stretched foil) or in rooms with high humidity.

Advantages

• Built-in thermostat with a temperature indicator on a scale;
• mains diode;
• Own wheels for transportation and stand;
• economic consumption of fuel – 1.63 l/h.

Disadvantages

• no screen;
• No hooks for winding the cable;
• it is impossible to connect the external thermostat and the regulator in a convenient location.

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

Rating: 4.7

Diesel gun with indirect heating capacity of 21 kW, at a fan consumption of 300 W / h and the fuel consumption of 2 liters per hour. The unit is already equipped with a thermostat that can be made external through the connection of a wire connector. The heat gun has the dimensions 1050x425x605 mm and weighs 43 kg. Air output is 1000 m³/h, so the heat quickly disperses into the room. Optimal to use the device to heat a room with an area of 200 square meters. Protective equipment controls the presence of the flame and cuts off the feed of diesel, if the fire accidentally goes out. Judging by the reviews, the owners of the unit with indirect heating are satisfied with the work of the electronic temperature regulator, which helps to maintain the set values more accurately than mechanical analogues.

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

Advantages

• digital screen;
• capacious tank of 55 liters;
• There is protection against overheating;
• built-in electronic temperature regulator.

Disadvantages

• short power cord;
• No cable winding device.

Profteplo DK-21H (21 kW)

Rating: 4.6

The model with indirect heating has a power of 2100 W and blows through itself 1000 m3 of air per hour. The heater is equipped with a voltage regulator and protects the electronics from power surges. Automatic ignition of the flame (ignited by a candle) by pushing a button. The device is equipped with a thermostat and can be connected to an external regulator to control the temperature from a comfortable place. The heat gun weighs 43 kg and its dimensions are 1080x510x685 mm. Reviews show that it is able to operate at low input voltage from 170 V.

The heat gun is the best in the category with capacity of 20-40 kW due to the duration of continuous operation on one fill-up tank. Thanks to the fuel tank with 55 liters capacity, the indirect heater is able to work for 34 hours. Economical burner consumes 1.6 l/h fuel oil. A heat gun is worth paying attention to those who need continuous drying or heating of the room, but don’t have the opportunity to monitor the device and add fuel.

Advantages

• 82% efficiency thanks to the three-pass heat exchanger;
• controlled electronic ignition;
• external thermostat can be connected;
• Operates at low line voltage.

Disadvantages

• no power control;
• no display.

Master BV 77 E (20 kW)

Rating: 4.5

Italian manufacturer’s heat gun has an attractive design with rounded forms. Indirect heating works in a three-circuit heat exchanger, and the fuel can be diesel or kerosene. Fuel tank holds 36 liters, and the flow rate is 1.67 l/h. Owners in reviews report that the indirect heater functions properly – no spontaneous stops. The users also like the fact that the design includes two filters (in the pump and between the tank and the burner), which protects the device from low-quality diesel.

Experts singled out the heat gun as the best because of the possibility of equipping a special channel, produced by the Italian manufacturer for this model. A huge flexible hose is put on the nozzle, which allows to put the heater outdoors and deliver only hot air into the room. Moisture-proof case of the heat gun allows you to operate the heater in the rain. No noise or smoke in the room, and no condensation dripping off the metal.

Advantages

• beautiful design;
• moisture-proof design;
• provides for adjusting the temperature;
• high wheels;
• electric ignition.

Disadvantages

• high cost;
• Low handle without hooks for cable winding.

NeoC

ma NPI-20 (21 kW)

Rating: 4.4