Device and peculiarities of operation of heat guns on water

When the cold weather arrives, it becomes necessary to warm up a room without having a fixed heating system. Because of inadequate heating and waterproofing in flats, storage areas, commercial buildings, and industrial facilities, the humidity level rises. The low temperature can harm objects that thrive in warm conditions, such as products on display or exhibition halls. To speed up the drying process of the building’s foundation and walls and to maintain a specific room temperature, portable devices such as thermal water guns are employed. These devices are designed to have a high heat output while consuming a minimal amount of energy.

General characteristics of the device

A water heat gun is a powerful fan heater that uses hot water from a central heating system to heat the air in a space. This device features a heat exchanger with a heated liquid as its heating element. The fan heater’s casing is constructed with stainless steel and covered in a high-quality polymer coating, providing an IP44 protection rating. This unit is made up of the following components:

• heating element;
• durable housing;
• non-disassembled air heater assembly consisting of copper pipes with inserted aluminum plates;
• an axial fan that generates a directed airflow through the unit’s heating module;
• filter;
• mounting bracket;
• drain connections.

Water heat guns can be installed on the wall in a horizontal, vertical, or slightly angled position using a mounting bracket.

Principle of operation

Initially, frigid air is sucked in through the rear grille from the surrounding space and passes into the heat exchanger. Once it has been heated up by the air heater, it circulates back through either the rotary louvers or the protective and decorative grid. The supply line is equipped with both three-way and two-way valves, which function to control the speed of the fan and adjust the heating intensity of the unit.

The axial fan heater ensures that the system receives an appropriate amount of airflow to operate effectively. The number of ribs on the outer surface directly impacts the amount of heat output. Furthermore, this fan heater is responsible for maintaining the desired room temperature. Should the device detect an overheating situation, it will automatically shut off; conversely, when the air cools down, it will turn back on.

Features of operation

Modern water heaters can last for many years if used properly. Follow these recommendations to ensure the longevity of your device:

• To prevent internal corrosion, make sure to drain the water when the heater is not in use.
• The room where the heater is installed should have a minimum air temperature of -10°C.
• Avoid using the heater in an environment where there are acids, alkalis, resins, or technical fibers, as these can damage the material of the device.
• The relative humidity in the room should not exceed 80%.
• Keep an eye on the level of dust and solid particles in the air, which should not exceed 10 mg/m3.
• Always use the heater with grounding.
• During winter, when there is no water supply, make sure to drain the coolant to prevent the heater from freezing.
• Regularly clean the unit by wiping off any dust.
• Every 3-4 years, remove the fan heater from the wall and wash it.

Note: If the heat gun has been transported or stored at low temperatures, allow it to sit in the building for 2 hours before plugging it in.

Application of heat fans

A water heat gun is utilized in rooms that are equipped with a central heating system. There are several areas where this tool can be utilized:

• Storage rooms
• Manufacturing facilities
• Indoor sports facilities
• Construction sites
• Supermarkets
• Greenhouse facilities
• Offices in business centers
• Commercial pavilion
• Automobile workshops
• Restaurants and canteens

The devices are strategically installed along the room’s periphery and are linked to thermostatic sensors. Once the air temperature reaches a predetermined threshold, the system activates and initiates heat production. The mobile design enables efficient heating of industrial zones, resulting in substantial electricity cost savings.

Control of the water heat gun

In order to oversee and manage the functioning of the heat fan, specialized electronic gadgets are enlisted. A remote control is utilized to wirelessly operate the water sprayer. This contraption is provided as part of the package and installed on the wall.

The device is equipped with slide switches and multiple touch buttons. The device shell has an IP20 protection rating. If there is a mixing unit, the control panel is utilized for adjusting the output and heat output. It is important to note that only fan heaters of the same type can be controlled with a single device.

Please be aware that the control panel is pre-configured at the factory. However, you have the option to make the connection yourself by following the instructions provided by the manufacturer.

Features of additional accessories

1. The device known as a thermostat is responsible for opening the faucet and activating the fan heater whenever the room temperature falls below the desired level. This particular device is designed with a high level of protection, specifically an IP30 rating. The weight of the thermostat is approximately 200 grams.
2. The controller is a device that offers automated control over the operation of the water heat gun, and even provides the ability to program it on a weekly basis. Each controller can handle anywhere from 1 to 8 heaters, but it will require a connection to each individual unit in order to effectively control the speed of the heat output. Additionally, the controller is equipped with a built-in temperature measurement sensor.
3. Speed controller The fan speed can be adjusted with the help of a transformer controller. This device is specifically designed for controlling the speed of one heat gun. It provides the option to select from approximately 5 different speeds. It is wall-mounted and offers a high level of protection with an IP30 rating.
4. Temperature sensor The device allows for the installation of a controller in any room.

Power calculation

Water guns consume 0.1-0.5 kW of power with a heating output of 10-60 kW. One can determine the output of the fan heater based on the room’s area. This can be done by referring to the following table:

Using the table, it is simple to find the required parameter. For instance, if the room has an area of 100 m2, one should select a unit with a capacity of 100-130 kW.

Advantages of a water fan heater

• There are several benefits to using a water gun as a source of heat in a room:
• The water gun is compact in size, making it easy to install and fit into small spaces.
• The heating temperature of the housing is low, which helps to prevent overheating and potential damage.
• With the built-in thermostat, the water heater can automatically regulate the air temperature inside the building, providing a comfortable environment.
• The device operates quietly, allowing for a peaceful and quiet atmosphere in the room.
• The housing is designed with a high degree of protection (IP44), ensuring that it is resistant to water and foreign objects.
• Both the housing and components of the water gun are made of high-quality materials, ensuring durability and long-lasting performance.
• The water gun has a high efficiency rate of approximately 95%, maximizing its heating capabilities.
• It quickly heats and dries the room, providing warmth and comfort in a shorter amount of time.
• It can be used with or without the heating function, providing flexibility and versatility depending on the room temperature.
• The water gun comes with a remote control, allowing for convenient and easy operation.
• Accessing the internal components of the water gun is uncomplicated, making maintenance and repairs straightforward.
• The water gun can be easily mounted on the wall, ensuring even distribution of heat throughout the room.
• A fence grille on the water gun protects it from foreign objects, ensuring its longevity and performance.
• It consumes power efficiently, resulting in economical energy consumption.
• The water gun has a long service life, providing reliable and consistent heating for an extended period.

Main criteria for selection

When choosing a water gun, it is important to consider the following parameters in order to ensure maximum functionality:

• Check if a mixing unit is available as an additional option.
• Consider the noise level – higher power means higher noise level.
• Be mindful of the dimensions.
• Take into account the design of the device.
• Consider the power – the efficiency of drying and heating the room will depend on this factor.
• Consider the method of installation.

Overview of popular models

1. The Galletti AREO P 12 is an Italian brand heat water gun that has a power output of 8.9 kW. Despite its compact dimensions of 460 x 460 x 500 mm, this heater is capable of effectively warming a large area. Each unit goes through a rigorous quality control process. The Galletti AREO device also features a condensate collection tray. According to customer reviews, it operates quietly and can be used year-round.

The Ballu BHP-W2-30 Water Fan Heater offers a mechanical control system and is capable of heating an area of 420 square meters. Its compact dimensions measure 815 x 770 x 325 mm. This wall-mounted unit comes with convenient mounting brackets for easy installation. With a maximum heating power of 42 kW, it provides efficient heating for large spaces. However, one drawback of this model is the absence of automatic temperature maintenance. Manufactured in China, this heater is a reliable and cost-effective option for heating needs.

Designed with a durable housing made of high-quality plastic, this unit offers not only efficient heating performance but also boasts a maximum noise level of just 52.3 dB, ensuring a peaceful environment.

Water heat guns are the top choice when it comes to heating and drying industrial and manufacturing buildings. This device is cost-effective and ideal for spaces where regular heating systems fall short of their duty.