Water air heater for ventilation: types, the device, the operating principle

To address issues of air in private homes and industrial buildings, along with the fans used devices, heated or cooled air that comes from the street. This helps to improve the performance of the indoor climate, improve the level of comfort.

One economical and available devices is a water heater for ventilation, the more familiar residents northern regions. From our material you will learn about the principles of operation and design features of this type of equipment. Also, we describe in detail about a few popular models of heaters for ventilation.

The content of the article:

  • Types of water heaters for ventilation
  • The principle of operation and design features
  • Pros and cons of using
  • The use of water equipment
    • Scheme tying knots
    • Controlled heating process
    • installation and connection features
    • Rules of operation and the ability to repair
  • An overview of current models
    • №1 - KSK heaters
    • №2 - heaters Volcano
    • №3 - heaters Galletti AREO
  • Conclusions and useful videos on the topic

Types of water heaters for ventilation

Now we note that the devices used for heating air in ventilation and air heating systems, can work not only on the water.

There are four types of heaters, heating the coolant different way:

  • fire;
  • water;
  • steam;
  • electric.

Water the most popular due to budgetary costs and minimal maintenance costs. The only difficulty concerns mount, which requires to bring water supply pipe.

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Photo of

Water heater in the ventilation system

Water heaters in ventilation systems are used to heat the fresh air portion, a fence which is made on the street

Unit dimensions for large rooms

To avoid freezing heater on a cold period, the ducts connected to it is calculated so that the air pressure and the speed of its movement never decreased. That is unacceptable excess of the duct

Compact air heater with the fan

If you are unable to accurately predict and calculate the rate of air movement, heaters are used with a fan, stimulating the movement of air after processing it in a heat exchanger

Apparatus heating air in a small room

exchanger heaters is calculated so that the heat supplied to it enough to heat a particular area of ​​the room

Spirally-wound air heater

By type of heat exchanger tubes heaters are divided into a smooth pipe and ribbed. In the area of ​​finned heat exchange more effective they

Location ventilation heater in the house

In the private homes of the ventilation system with heaters and filters are usually placed on a cold attic. Supply of heated air is made through ceiling blowing holes

Location of the bypass valve

In order to control heat and heating the air temperature in the room, at the inlet of the heater is set automatic or manual bypass valve

Ventilation ventilation system with heaters

The fresh air ventilation system using heaters all units must be the same model and type

Water heater in the ventilation system

Water heater in the ventilation system

Unit dimensions for large rooms

Unit dimensions for large rooms

Compact air heater with the fan

Compact air heater with the fan

Apparatus heating air in a small room

Apparatus heating air in a small room

Spirally-wound air heater

Spirally-wound air heater

Location ventilation heater in the house

Location ventilation heater in the house

Location of the bypass valve

Location of the bypass valve

Ventilation ventilation system with heaters

Ventilation ventilation system with heaters

For this reason, it is impossible to install the device in apartments, but in large buildings (eg, warehouses, garages, catering establishments) system with the correct heater strapping enough effective.

Installation for heating air

Installation for heating the air in the premises of a large area consisting of the water heater and the radial type fan. Click to create air curtains and air ventilation in office buildings, stores, shops

A distinctive feature of steam devices - high speed to achieve the required temperature. They are relevant for industry, where it is easy to ensure the installation and maintenance of steam lines, for private housing their use impractical.

If you need a quick installation, uncomplicated communications eyeliner, use electrical heaters models ventilation. For their operation adequately protected power outlets. Coolant itself is not at all, Heating elements are heating elements. As with any electronic apparatus, they are disadvantageous from the material point of view.

Advantages of water heaters

Water heating equipment used in ventilation systems - the most economical and efficient option that can quickly heat a large space with minimal effort

The principle of operation and design features

Universal devices operating in the water, placed in locations with good access to the heating system. A simple, but quite effective design solution allows heated air in the range from + 70 ° C to + 100 ° C, and is important for hangars, gyms, supermarkets, greenhouses, warehouses, large pavilions - ie the bulk of premises, require additional heating.

VOLCANO heater in the greenhouse

EXAMPLE VOLCANO use the heater in the greenhouse. Heating is performed by distributing the hot air (temperature - + 90º C) using fan and adjustable louvers

If you've ever used a domestic heating radiator, it is easy to understand the principle of operation of the water unit. It also heats the air, but the role of the electric coils, enclosed in a small package, playing a set of metal pipes, which circulates the heated coolant.

The heating process is as follows:

  • hot water heated to the desired temperature (an average of from + 80 ° C to + 180 ° C) of the heating pipes enters heat exchanger consisting of a small aluminum, steel, or copper bimetal tubes;
  • the tube is heated air passing through the device;
  • internal fan distributes the heated air throughout the room and stimulates its movement in the opposite direction - to the device.

Especially warm water is not necessary, since it is part of the heating system, so there is a significant cost savings.

The design of the water heater channel

The design of the water heater type channel 60-35-2 galvanized steel, intended for ventilation and air conditioning systems. Typical duct size - 60 cm x 35 cm, Rows - 2, the maximum working pressure - 1.5 MPa, the maximum coolant temperature - 170 ° C +

Scheme standard water heater - a hybrid heat exchanger, and the fan convector. It is effective for heating large industrial premises, and when choosing the right binding - and for cottages with well-functioning ventilation system.

Pros and cons of using

If an enterprise has its own heating system, the use of heaters for air Ventilation of industrial premises It is the most cost-effective.

a fan heater system

Set water heaters to serve the warehouse. Heaters with an air flow of 5200 m³ / h and a water temperature + 130 ° C heated air and maintain a predetermined temperature

Advantages of the devices connected to the centralized system:

  • easy installation, no different in complexity from installation of heating pipes;
  • rapid heating of the volume space;
  • safe operation of all units;
  • possibility of adjusting the heated air stream;
  • strict industrial design.

But the main advantage is the absence of regular investments - payment occurs only when purchasing new equipment.

Prices for heaters

Prices on water heaters Bimetallic KSK production Novosibirsk company "T.S.T" manufactures thermal equipment. The final price depends on the basic configuration and technical specifications

The main disadvantage is considered impossible to use water patterns in everyday life, especially in urban housing. An alternative is the use of electrical appliances.

Another detail for the negative temperature: the equipment must be installed in the premises where the minimum threshold does not fall below 0 ° C.

The design of the water heater

The design of the water heater substantially no wearing parts. They rarely fail and require major repairs that should also be included in the "piggy bank" of benefits equipment

The use of water equipment

The radiator is the current node ventilation and has the features of the installation, operation and maintenance. To understand the connection and operation of the device will help trim diagrams and installation instructions.

Scheme tying knots

An arrangement of knots depends on the installation location, air circuits, technical characteristics. There are several options for mounting, among which the most popular is the mixing of return air with the supply air.

Closed system, assuming only the recirculation of air masses inside the building, used less frequently.

More power to the installation of the device occurs if well organized natural ventilation. The radiator can be connected directly to the heating system at the air intake, which is usually located in the basement.

In the presence of mechanical ventilation installation of heating device can be carried out at any convenient location.

Scheme strapping heater assemblies

Scheme strapping heater units for ventilation. Ball valves are installed at the inlet and outlet overlap allow water and thermomanometer - control the temperature and pressure

Demand for air systems has led to the fact that some companies began to produce ready-made model of tying knots in various designs.

This kit, designed to build and include the following details:

  • balance and check valves;
  • pumps;
  • bypasses, ball valves;
  • two-way valves;
  • pressure gauges;
  • purification filter.

An example of an integrated manufacturing units by the products of the company "Integration" (St. Petersburg).

Schematic diagram Strapping

Schematic diagram strapping ventilation installation type «SOLID», allowing to control the operation of the heating device to maintain a certain temperature in the room

Based on the installation conditions and the technical needs of the user, there are a few common parts layout combinations in nodes.

The following diagrams are four popular performance shown:

binding scheme

Legend presented for four strapping schemes are common: 1 - the ball valve; 2 - filter; 3 - three-way valve; 4 - pump circulation type; 5 - check valve; 6 - termomanomentr

In versions 1 and 3 nodes attached rigid manner in the 2 and 4 - by means of flexible metal hoses.

Controlled heating process

mixing units used for adjusting thermal power with air-heating device three-way valve. Thanks to the mix can significantly reduce heating costs flat.

The three-way valve to reduce the coolant temperature by mixing the hot water coming into the heater, a certain amount of cooled liquid, discharged from the heat exchanger.

installation circulating pump It increases the efficiency of the system. It is preferable to mount the output, since the cooling water (or alternative - glycol solution) prolongs the instrument.

There are several important conditions of operation of the mixing equipment:

  • maximum proximity to the heater;
  • accessibility for maintenance;
  • filtered without chemical inclusions coolant;
  • the room temperature above 0 ° C.

Technical characteristics of the devices may be different, but the average reference temperature of coolant of + 2 ° C to + 150 ° C. For regular monitoring of performance, mount two thermomanometer around the heat exchanger.

mixing unit

Sample mixing unit for the water heater. In fact, this is one of the variants of the binding with temperature control and control of its change

Adjusting the three-way valve is carried by the actuator and controller. Measuring devices allow you to accurately exhibit the desired temperature and pressure change.

installation and connection features

To install the heaters in manufacturing plants or other industrial facilities invite a team of specialists. Household devices can be connected independently, if strictly follow the instructions and have the skills to work with electric and heating devices.

For those who have arranged their own hands in the house heating system, Installation of air heating installation will seem like child's play.

Domestic models have a relatively small volume and light weight, but before hanging them on the wall (or ceiling) should test the strength of the base. Considered the most strong, concrete and brick walls, moderately suitable - wooden, the weakest - plasterboard.

The first metal frame is fixed - with the bracket holes to lock the housing. Some manufacturers frame is called a mounting bracket.

Place mounting duct heaters

Place mounting duct heaters for ventilation air in the system. If it is possible to lower the temperature below the normal, mandatory installation of frost protection thermostat

Suspended heater casing and alternately connects the pipe with a set of valves or mixing unit, which can be partially set up and installation of the device.

Inset into the heating system is carried out in two ways: by using the connecting fittings (couplings with gaskets) or welding of metal pipes. The second method is considered the most reliable, but it is not possible with a flexible connection.

One of the weakest areas - pipes heat exchanger, which is necessary to ensure stability. If there is the risk that the position of the instrument, it is better to replace the rigid pipe flexible elements. In any case, it is necessary to eliminate the load on the pipes. To ensure insulation system and prevent leaks, joints treated with sealant.

Tight connection pipes heater

If the water heater is installed on a permanent basis, it is connected rigid pipes. If you plan to transfer or displacement, it is better to use a flexible liner

Before the process of testing is necessary to remove air from the channels, check the operation of valves and guides blinds.

Rules of operation and the ability to repair

The equipment worked perfectly and fully carry out their functions, consider the following rules:

  • to monitor the composition of the air in the room (with the relevant requirements can be found in GOST 12.1.005-88);
  • make installation strictly according to instructions and on the recommendations of the manufacturer;
  • not to increase the coolant temperature higher than + 190 ° C;
  • Pressure to comply with norms - about 1.2 MPa;
  • After cooling the room to heat smoothly, approximately 30 ° C per hour;
  • ensure that the temperature does not fall below 0 ° C, otherwise the heat exchanger tube burst.

If the heater is installed in a room of high humidity, dust and moisture protection degree must be IP66 or higher.

Repair alone is not recommended, as the failure of one often leads the next, but in the end will just have to replace some parts. It is better to contact the service center and request the work to professionals. Also, before you buy should not be ignored calculation of heater powerOtherwise there is a chance to waste money.

An overview of current models

To make an impression on the brand and model of water heater, consider multiple devices from different manufacturers.

№1 - KSK heaters

Heaters KSK-3, manufactured by the company ZAO T.S.T.

KSK heater

Lineup water heaters XK domestic production includes a 2/3/4-in-line device performance and differing sizes


  • the coolant temperature at the input (output) - +150 ° C (+70 ° C);
  • Inlet air temperature - from -20 ° C;
  • Working pressure - 1.2 MPa;
  • The high temperature - +190 ° C;
  • service life - 11 years;
  • working resource - 13 200 hours.

The outer parts are made of carbon steel, heating elements - of aluminum.

№2 - heaters Volcano

Water heater Volcano mini - a compact device the Polish brand Volcano, characterized by practicality and ergonomic design. Adjusting the airflow produced via controlled shutters.

Volcano mini heater

One heater Volcano mini able to produce as much heat as giving ten conventional bimetallic radiator composed of ten sections


  • power within the borders - 3-20 kW;
  • Maximum Performance - 2000 m³ / h;
  • type heat exchanger - double-row;
  • protection class - IP 44;
  • The high temperature coolant - 120 ° C;
  • maximum working pressure - 1.6 MPa;
  • internal heat exchanger volume - 1.12 L;
  • guides blinds.

Water heaters Volcano designed to heat the air of domestic and industrial premises with an aqueous fluid.

№3 - heaters Galletti AREO

Heater Galletti AREO Italy.

Water heater brand Galletti AREO

Water heaters brand Galletti AREO able to run on heating the treated area, and the cooling of the space in the hot weather

Models equipped with a fan, a copper-aluminum heat exchanger and the drain pan.


  • a power heating mode - from 8 KW to 130 KW;
  • cooling capacities - from 3 kW to 40 kW;
  • Water temperature - + 7 ° C +95 ° C;
  • temperature - from 10 ° C to + 40 ° C;
  • Operating pressure - 10 bar;
  • number of fan speeds - 2/3;
  • electrical safety class - IP 55;
  • motor protection.

In addition to these instruments brands in the market of air heaters and water heaters can meet models of the following brands: Teplomash, 2VV, Fraccaro, Yahtec, Tecnoclima, Kroll, Pakole, INNOVENT, Remko, Zilon.

Conclusions and useful videos on the topic

Overview water teplonagrevatelya brand Volcano:

Details about the technical characteristics of the model Ballu BHP-W-60:

The simple design and affordable for the independent performance of the installation - the reasons for choosing the type of water heaters. The correct choice of instrument and competent installation piping will increase the efficiency of the ventilation system and improve the heating of industrial and residential premises.

There were questions about the topic of the article? Or maybe you sewed the shortcomings in our material or want to supplement it with interesting information? Please write your comments in the box located below.

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