How the gas convector works

When looking for dependable and efficient heating options, many homeowners choose gas convector heaters. These gadgets use natural air currents to disperse heat throughout a space because they work on the convective heat transfer principle. Knowing how gas convectors operate will enable you to make well-informed decisions regarding the economical and efficient heating of your house.

A burner unit that runs on propane or natural gas is the central component of a gas convector heater. The gas enters the burner when the heater is turned on, where it ignites to produce a controlled flame. This flame warms the air passing through a heat exchanger, which is usually made of metal.

A natural convection current is produced when the air surrounding the heat exchanger heats up, becomes less dense, and rises. To replace the rising warm air, cooler air from the surroundings is drawn into the heater’s bottom. As long as the heater is operating, this cycle will continue, spreading heated air throughout the space steadily.

The ability of gas convector heaters to heat a space quickly is one of their main benefits. Gas convectors heat the air itself, as opposed to some other heating systems that use radiant heat, which warms objects directly. This implies that they can quickly increase a room’s temperature and offer almost instantaneous warmth when you need it most.

Gas convectors are renowned for their efficiency as well. Once they reach the right temperature, they don’t need much energy to run because they rely on natural convection currents to distribute heat. When compared to electric heaters or central heating systems, this may lead to lower energy bills.

Gas convectors are useful and efficient, but it’s still important to use them safely and sensibly. Make sure a trained professional installs and maintains your heater, and always adhere to the usage guidelines provided by the manufacturer. All winter long, you can have warm, cozy warmth in your home by learning how gas convectors operate and taking the necessary safety measures.

How the convector works

The way a gas convector works is based on how a gas’s characteristics change as its temperature rises.

Mounted convector for gas

The air rises higher, gets heated, and becomes lighter as it passes through the convector’s heat exchanger. New, cold air segments replace the heated air. The device’s name, convection, refers to this movement of air layers.

The internal design and working principle of this heater clearly dictate where it should be installed: a convector should be installed as low as possible to maximize its efficiency.

Because of its density and heavier weight, the coldest air is inherently at the bottom and will heat up first in this configuration. In actuality, heat losses are typically greatest under windows, so this is where a gas heating unit is most frequently attempted to be installed.

The fundamentals of how a gas convector works

A tangential fan is frequently included with the gas heater. The installation aids in boosting the rate of heated air supply and greatly quickens the room’s heating process. Furthermore, some pricey models have thicker body walls, which allows them to store a lot of heat and radiate it into the surrounding area. These units offer the best heating quality by fusing the benefits of convectors and traditional radiators.

Gas convector design

The following elements are often found in a gas convector:

  • housing;
  • heat exchanger
  • gas burner;
  • combination valve;
  • combustion products exhaust system;
  • thermostat;
  • automation system.

Certain parts may be made differently or not at all, depending on the kind and functionality of a given device.

The gas convector’s body serves both aesthetic and protective purposes. Usually composed of sturdy metal, it is coated with a unique heat-resistant paint that prevents corrosion and can tolerate sudden temperature swings. Gas is continuously burning inside the device while it is operating, so the casing needs to dependable shield the room’s interior from open flames. The housing’s upper and lower sections each have unique air-circulation slots.

Heat exchanger

The heat exchanger’s job is to swiftly and effectively heat the air. As a result, the surface area in contact with the air flow must be maximized. Its surface is designed to be as ribbed as possible for this reason. Simultaneously, the heat exchanger is constructed from heat-resistant steel or cast iron and coated with heat-resistant dye due to its principle of operation, which involves continuous heating from the gas flame.

Gas burner

The gas convector’s principal parts

The burner’s gas combustion produces the heat required for the gas convector to function. It typically consists of the ignition and the main component and is housed inside the heat exchanger. The ignition burner is connected to an electrode, which uses a piezoceramic or electronic discharge to ignite it. The primary burner ignites if the automatic system hasn’t shut off the gas supply because of a malfunction in any component of the system.

Combination valve

By installing a combined gas valve, the convector’s combustion chamber’s gas pressure can be controlled based on signals produced by thermostats or the automation system. Accordingly, the valve adjusts the fuel supply to the convector by increasing, decreasing, or stopping it.

Smoke extraction system

There are two types of gas heaters: those with forced and natural drafts. Additionally, there are various arrangements for gas convectors:

  • Fireplace-type appliances draw air from the room, and the combustion products are discharged into a vertical chimney, i.e., a vertical chimney. е. Their principle of operation is similar to that of a conventional stove.
  • Parapet heaters are more environmentally friendly and safer. Air intake and flue gas discharge in them is made through a coaxial pipe, which is laid through the outer wall to the street. The draught in this case is maintained by the built-in fan.

Most manufactured convectors operate on the second scheme, which offers easier installation and more user-friendly operation.

In order to protect the device from foreign objects and extinguish the flame, the chimney pipe is led out horizontally at a distance of 50 to 120 mm (depending on the power of the convector and the diameter of the outlet pipe). The chimney pipe is closed with a grate.

Like any other contemporary heater, a gas convector can keep the room at the desired temperature. A thermostat is used for this, and it regulates how the gas valve operates. In the event that the target temperature has been attained, the gas supply is reduced to a level that is still adequate to sustain it.

Automation system

Inbuilt automation evaluates sensor data and keeps an eye out for any anomalous circumstances. The convector shuts down instantly when there is a drop in gas main pressure, an interruption in the air supply to the combustion chamber, a malfunctioning gas duct fan, a flame failure, and other issues.

In "How the Gas Convector Works," we explore the central mechanism of home heating technology. Gas convectors are useful and effective appliances that heat your house using natural gas. They function by pulling cool air from the space, heating it with gas in a heat exchanger, and then redistributing the heated air back into the space. A thermostat regulates this process to maintain the ideal temperature in your room. Gas convectors are a popular option for many homes because they provide an affordable and dependable means of keeping your house warm during cold weather.

Peculiarities of installation

Usually, there are no significant issues during the gas convector installation process. Making sure all connections are tight and drilling the proper hole in the wall for the coaxial chimney are the two main tasks. This work is typically broken down into multiple phases:

  1. Selecting and preparing the installation site. As we have already said, the convector is best to hang under the window. These requirements are contained in building codes and regulations (SNiP). After determining the exact position of the housing, it is necessary to mark the place for the gas pipe outlet;

  • Installationof the convector and gas duct. The coaxial pipe is assembled and put on the outlet spigot. All joints are treated with heat-resistant sealant. The convector is fixed to the wall using the appropriate fasteners; Installation of the gas exhaust pipe
  • Gas supply. The gas pipe should approach the heater installation location only along the street. A shut-off valve must be installed at the point of connection to the convector;
  • Test run. Open the gas supply and immediately check the tightness of the connections. To do this, use a soft sponge soaked in soapy water. In a correctly assembled assembly, no bubbles should form when applying the mortar;
  • If everything works normally, light the burner, check the height of the gas flame through the viewing window and set the desired temperature on the thermostat. When this temperature is reached, the convector should switch to a less intensive burning mode, which is necessary to maintain a comfortable level of heat in the room.
  • Watch the video to learn more about installing a gas convector.

    An excellent option for heating rooms with a gas supply is a gas convector. It requires no complex calculations or piping, making installation easy. It might be the best choice if you occasionally need temporary heating.

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    What is a gas convector – design features and operation

    How a gas convector works

    The natural convection of air masses is the basis for the operation of gas heating convectors, which heat living spaces. There are always cold air masses at the floor of the space. The air rises during heating and then begins to cool. The natural circulation of air masses serves as the foundation for the operation of every convector.

    Principle of operation of convectors

    Here’s how a gas heating appliance operates:

    1. Inside the convector there is a heat exchanger connected to convection channels.
    2. The heat exchanger is heated by burning gas.
    3. The air passes through the heating element and heats up.
    4. Heated air flows into the room.

    The gas convector’s principle of operation has various benefits that set it apart from similar devices in a positive way.

    Advantages of gas convectors

    Convection heaters operate on an advantageous principle that offers various benefits.

    • Less gas consumption – the air in the room is heated directly, and not due to the heat carrier, which increases the efficiency of the equipment and reduces heating costs.
    • No need for heat carrier. Heating of the room is carried out by heating the air. Convectors can be installed in unheated rooms, starting only when necessary, without fear of the heating system shrinking. For this reason, installing a gas convector for a summer house is the best option.
    • Versatility – the heater can be connected to the central gas pipeline or cylinders. The convector requires connection to the combustion products exhaust pipe for its operation.
      Connection to the power supply network is necessary only for convector models with a fan. The fan accelerates air circulation and increases the speed of heating the room several times.

    Similar to a hot-water boiler, a gas heating convector installation in an apartment requires a permit from the gas service and a heating project.

    Types of convectors on gas

    It’s important to understand the key distinctions between current equipment and the benefits and drawbacks of modifications in order to select the best convector.

    What qualities allow heaters to be categorized?

    • Method of installation – there are wall and floor models. The first ones take up less space, are characterized by low weight and efficiency, are limited in performance (maximum power of 10 kW).
      For heating a garage, rooms with a large area, it is better to choose a floor model. Heaters have a large weight due to the increased heat exchanger. Performance of floor convectors reaches several mW (industrial versions).
    • Flue gas venting. A conventional convector has an open gas combustion chamber. The principle of operation of the device somewhat resembles a simple wood stove. The design has several disadvantages – burns oxygen, requires good ventilation of the room, as well as the manufacture of a complex system of smoke removal.
      New generation convectors use a closed combustion chamber. Coaxial pipe is used instead of a chimney. Air intake is carried out from the street, so in the process of operation does not burn oxygen in the room. Systems with a closed combustion chamber have only one disadvantage – the cost is 30-50% higher than that of classic models.
    • Material of heat exchanger. The principle of convector operation is associated with constant thermal action. One of the frequent reasons for the failure of the heater is the burning of the walls of the chamber. The heat exchanger is made of steel or cast iron. The crystalline structure of the latter metal ensures a long service life (about 50 years) and high heat output. The steel chamber will last about 10-15 years.
    • Fan. Convectors of large capacity are equipped with a system of forced air circulation. Budget household models may not have a fan.
    • Gas type. Models are designed to work on any type of "blue" fuel. Natural gas convector can also operate on propane gas. A special adapter kit will be required for conversion.
    • Control automation. Budget models are equipped with ordinary thermostats. Programmable control unit allows you to control the temperature in the room and set the required heating mode.

    The material of the heat exchanger, the accessibility of a transition kit, and the features of the control unit all affect how much a gas convector costs.

    Whether it is possible to install a convector in a living room

    Using gas convectors to heat a home or apartment is totally safe. There are several factors that need to be considered:

    • Models with a vertical chimney, equipped with an open combustion chamber. The operation of convectors of this type is allowed in private and country houses, but is prohibited in multi-storey buildings. In apartments it is recommended to install systems without a chimney.
    • It is somewhat easier to obtain permission to install a convector than to obtain documents for the operation of a gas-fired hot water boiler. The gas service authorizes the use of heaters for heating industrial and domestic buildings.

    How to choose a gas convector

    The technical details of heaters must be taken into consideration. Selecting a convector with a closed-type cast iron heat exchanger and a programmable control unit is the best option.

    The following factors must be considered when selecting the equipment:

    • Capacity calculation. Air convection is used to heat the room. Consequently, the heaters are only effective in confined spaces. A separate convector should be installed for each room. The power is calculated using the formula 100 watts per 1 m².
    • Type of housing. Heaters with a closed combustion chamber and combustion products output through a coaxial chimney are suitable for apartments. You can put any type of equipment in your house. However, when installing a heater with a closed chamber, it is necessary to take care of a constant and intensive supply of fresh air.
    • Fuel type. Gas heating convector on liquefied gas is prohibited to install in the apartment of a multi-storey building, because of the high explosion hazard of cylinders.

    At the time of manufacture, every convector has the ability to be connected to the main gas pipeline. A special reducer must be purchased if connecting the gas convector to a cylinder in the future (in certain modifications, it is included in the set).

    Which company is the best convector to choose

    The following manufacturers offer heaters for residential use:

    The available equipment has power ranging from 1.5 to 10 kW, allowing it to heat a large room up to 100 m² as well as a small workshop.

    How to correctly install a convector

    The operating instructions contain a detailed description of all installation requirements, regulations, and restrictions. Specifically, it says:

    • Installation of a gas convector in a wooden house. During operation, the body is heated to 50-55 ° C. It is necessary to insulate wooden surfaces in contact with the heating parts of the construction. The rules of installation in a wooden house prescribe the manufacture of fire breaks of the roof.
      [If a coaxial pipe is used, no insulation is required where it passes through a wooden wall. The surface of the coaxial chimney is heated insignificantly, due to the special design of the burner and the pipe.
    • Location from the floor. Air heating of a summer house or a residential house has certain peculiarities that affect the efficiency of heating. To ensure maximum performance, you should install the convector as close to the floor as possible. As a result of this solution, the intensity of circulation of convection flows increases and the efficiency of the equipment increases.
    • The gas pipe is connected to the heater exclusively through the street. A shut-off valve should be installed at the connection point.

    An official from the gas service is present when the test is started up. The documentation for the convector is labeled appropriately.

    What is better, a gas convector or a boiler?

    Everything is dependent upon the building’s technical features and operational quirks. Convector installation takes less time and material resources.

    For country homes that are not heated during the winter, air conditioning is advised. Once installed, a water circuit is not required, and the building can only be heated sporadically. It is possible to warm the room in 20 to 30 minutes, even if the temperature is below zero.

    In terms of economy, a gas convector for a home using bottled gas is not as efficient as a boiler connected to the main pipeline, but it is more functional. When there is no gas supply, choosing an air heater makes sense. When the cylinder is fully filled, the heater can operate for about ten days.

    The efficiency of the convector is restricted by the characteristics of convection flows, but it heats the space more effectively and quickly while using less fuel. The heating intensity drops with the presence of obstructions like walls, furniture, etc.

    The best option for heating a small room or country house is a convector type heater. Nevertheless, installing a conventional gas boiler is preferable for residential heated homes with spacious rooms.

    Calculating a warm water floor’s capacity and temperature

    Gas convector

    These days, the widest variety of heat sources and devices are employed for the purpose of heating buildings. Every conceivable design and principle of operation—from gas boilers to electric heaters to geothermal energy—is covered. A heating gas convector is also included in this variety. This device resembles a regular radiator except that it uses liquefied or main natural gas and is a little bit bigger. Heat from the combustion of gas enters the room instantly through the heat exchanger, instead of heating water and then distributing it to radiators.

    Understanding the unique characteristics of this kind of heater and estimating the range of its use based on the benefits and drawbacks of the gas convector are fascinating.


    The natural gas-powered convector is designed to heat buildings for a variety of uses. Air from the street is used for combustion, and combustion products are released into a closed chamber during the process. The heat exchanger and combustion chamber body absorb the heat released during fuel combustion, which is subsequently transferred to the room’s air. Rapid heating causes the air to rise, creating space for colder air and ensuring that there is active convection going on throughout the space.

    More quickly and actively than electric convectors, or even more so than convector-type radiators for water heating systems, gas convectors warm the air. The increased rate of heat transfer from the combustion chamber and the heat exchanger’s higher surface temperature are to blame for this.

    In these circumstances, a gas convector is a great option:

    • The main heating of a small room or house with one or two adjacent rooms.
    • As a replacement for a solid fuel stove, which was previously used to heat the house.
    • For fast heating and maintaining a comfortable temperature in a garage, utility room, small country house.
    • As an addition to the central heating system in rooms where it is difficult to install a water radiator (basement and semi-basement, attic, veranda, etc.).п.).
    • For heating a greenhouse.

    Only small homes or single rooms are suitable for using a gas convector as a main heating replacement. Based on the capacity models of gas convectors that are currently available, the efficiently heated area can be computed with ease. Devices with a capacity of 2.5–6 kW are more frequently found on sale than those with a capacity of 12 kW. In the first scenario, a 50 m2 room can be sufficiently heated by the convector. The most potent models are only needed for public and industrial spaces up to 100 m^.


    The way a gas convector operates

    The gas convector’s design is extremely straightforward and includes:

    • combustion chamber;
    • gas burner;
    • automation unit (Eurosit);
    • heat exchanger forming the outer part of the combustion chamber;
    • coaxial chimney.

    The type of combustion chamber is closed. Both the air supply and the combustion products are released into the street. There aren’t many convector models with an open burner, but it’s best to stay away from them because they quickly exhaust the oxygen in the space and fill it with CO2 and other combustion byproducts.

    Combustion chamber and heat exchanger material:

    The steel chamber is less expensive and lighter. Convectors filled with steel weigh 10–15 kg less than those filled with cast iron. The service life of such a device is reduced and it still burns out over time, even if the manufacturer used special heat-resistant steel.

    The lifespan of a cast-iron combustion chamber is practically infinite; its only weakness is abrupt temperature changes. what results in the material’s microcracks. Other than that, cast iron has a high heat capacity, is resistant to corrosion, and does not thin when exposed to open flames—all of which are advantageous qualities for a heating appliance.

    A single-module burner with a straightforward design powers the convector, ensuring uniform combustion over a wide area. Each nozzle needed to have a tiny flame torch so that the gas, which had been mixed with air in a specific amount, burned completely and left no trace.

    Gas convectors are built in accordance with GOST 5542, which specifies low pressure gas at 1274 Pa. Convectors frequently assist with the installation of a cylinder filled with liquefied gas that is delivered via a reducer and jaculator. Mechanical automation—typically the dependable EuroSit—is in charge of controlling the gas supply, output power regulation, and room temperature.

    The chimney is shown as a coaxial pipe, which is made up of two distinct channels formed by inserting a smaller-diameter pipe into a larger-diameter pipe. To keep the gas burning, fresh air from the street enters through the space between the pipes and is released through the internal duct for combustion products. Presumably, the convector is situated close to the street’s edge wall. Through a prepared channel, the chimney exits the building directly. The chimney should be as short as possible.


    The heat exchanger heats quickly and actively, reaching temperatures of up to 600 °C, but more often than not, its surface is built with sufficient convection flow to sustain temperatures between 60 and 120 °C.

    Using a supercharger, a fan that can swiftly run a large volume of air through the convector, is one way to actively and quickly remove heat from the heat exchanger and at the same time quickly warm up the heated room.

    This method works well, for instance, when heating a garage, summer house, production or construction area, or utility room. where it is typically cold and, if needed, quick action is taken to create comfortable conditions for people. When the convector serves as the primary heat source, the fan will only run partially during the initial stages of the process, until the air reaches the desired temperature, at which point it will be switched off and not operate.

    The most compact convectors should be specified separately. The fan is always running in these. In order to minimize the weight and dimensions of the heat exchanger, its area is reduced. Additionally, in order to attain the necessary heat output, a fan is required to have enough time to remove heat from the combustion chamber.

    The gas convector heats up by burning gas in a combustion chamber
    The heat from combustion is transferred to metal fins or tubes
    A fan or natural convection moves air over the heated fins or tubes
    Warm air rises and circulates around the room

    An economical and effective way to heat your house is with a gas convector heater. These heaters generate heat through combustion using either natural gas or propane as fuel, which is then distributed throughout your living area. Gas convectors, as opposed to conventional central heating systems, offer focused warmth, enabling you to heat particular rooms as needed.

    The rapid and responsive heat output of gas convector heaters is one of their main benefits. Gas convectors heat a room almost instantly, in contrast to some other heating systems that take some time to warm up. This makes them perfect for quickly warming up a cold room or adding extra warmth on chilly days.

    In addition, compared to other heating systems, gas convectors are comparatively simple to install and require little upkeep. For homeowners seeking to upgrade their heating options, a gas convector heater is a sensible option because it can deliver dependable warmth for many years with proper maintenance.

    Gas convectors also provide flexibility in terms of energy consumption and control. The majority of models have movable heat settings, so you can alter the degree of warmth to suit your tastes and the local climate. By doing this, you can potentially lower your long-term heating costs in addition to optimizing comfort and improving energy consumption management.

    To sum up, gas convector heaters offer a practical and efficient way to heat your house. Their rapid heat output, simplicity of installation, and controllability make them a sensible substitute for conventional heating systems. A gas convector heater can help you stay warm and cozy during the winter months, whether you’re looking to heat one room or your entire home.

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    Sergey Ivanov

    I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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