Autonomous heating systems based on gas boilers are widespread in Europe.
In our country, they are less popular, however, the situation changes every year. Users are actively switching to heating with the help of imported and domestic heating installations.
The choice of boilers is very wide, which makes it possible to choose the appropriate installation for any conditions or room size.
Consider floor standing gas boilers produced by the domestic company Lemax.
Floor standing gas boilers Lemax
Lemax was founded in 1992 in Taganrog. Gas boilers manufactured by this company are assembled from imported components from leading European manufacturers.
Floor standing boilers are non-volatile, operate on natural draft and do not need to be connected to the power supply, however, they have the ability to connect water heating units and turbo nozzles to create forced draft.
Floor-standing boilers Lemax are presented in a large assortment, the model range has samples with a capacity of 6 to 100 kW, which allows you to heat apartments or large houses.
NOTE!
The main feature of the units is the simplicity of design and the absence of unnecessary units and parts that complicate the design of boilers and increase the risk of failure.
Brand product line
Currently, Russian gas boilers Lemax are represented by models with a wide range of capacities. The brand's lineup includes boilers designed to heat buildings of various sizes, which have different levels of functionality. Boilers are produced in wall and floor formats, while owners of private houses often pay attention to the latest modification of the device. Other models of domestic-made boilers can be found in our article "Russian-made gas boilers: varieties and properties."
Any gas heating boilers Lemax, reviews of which are mostly positive, are distinguished by the following competitive advantages:
- high efficiency;
- ergonomic design;
- neat body;
- operational safety;
- ease of connection to the circuit;
- long term use of the boiler in the heating system.
The Taganrog brand has achieved these advantages through cooperation with leading European manufacturers of automation and heat exchangers, supplying high-quality components for domestic boilers.
Types
There are two types of construction of floor-standing gas boilers Lemax:
- Single-circuit.
- Double-circuit.
Single-circuit models only work for heating the home. They perform a single function, therefore they do not have any superfluous elements and demonstrate maximum reliability.
Double-circuit models, in parallel with heating the house, prepare hot water for domestic needs.
Inside the tank with heating water (heating water, or heat carrier) there is a copper coil through which water is passed from a separate make-up line.
They do not mix with each other, heating is produced by transferring a certain amount of heat from the hot coolant to that part of the flow that is currently passing inside the coil.
If the water intake is not too active, the amount of DHW is usually sufficient to meet all needs.
In addition, there are models with different types of heat exchangers.:
- Steel.
- Cast iron.
Stainless steel withstands significant heat and is resistant to galvanic corrosion. wall thickness 2 mm, welded construction. Cast iron heat exchangers have an increased wall thickness of 4 mm and are used on high power boilers.
Ductile cast iron of special grades is resistant to temperature changes and is able to compensate for different degrees of heating at individual points.
Reviews of some options for gas boilers
If you choose Lemax gas boilers, reviews of which will be discussed in the article, then it should be noted that this equipment, equipped with an atmospheric burner, can be represented by a wall-mounted or floor-standing option. In the latter case, the heat exchanger is made of cast iron and steel. According to users, it is difficult to give preference to a specific material, because each has undeniable advantages. For example, steel is lightweight and does not fear impacts, which can be important when loading and unloading.
The cast iron heat exchanger has thick walls, according to users, this significantly extends the life of the device. However, do not forget that cast iron is a very fragile material. Ordinary people call wall-mounted gas boilers "Lemax", reviews of which it will be useful to read before purchasing, mini-boilers.
A small metal body of such equipment contains a burner, circulation pumps in the amount of one or two pieces, an expansion tank, a security system, a control device or heat exchangers, a thermometer, and a pressure gauge.
When consumers begin to talk about a gas evacuation system, they identify a forced and natural way. If the boiler has a forced gas exhaust system, then the device is equipped with special fans, with the help of them gas is removed. Such models, according to consumers, act as ideal for those premises in which the presence of a chimney in the traditional sense is not provided. Due to the fact that the combustion products are removed through a coaxial chimney, it will be enough to make a hole in the wall for its organization.
Advantages and disadvantages
The advantages of Lemax floor-standing gas boilers include:
- Simplicity, reliability and durability of the design.
- Energy independence, increasing stability and reliability of work.
- Ease of controls.
- Low fuel consumption.
- Relatively low price with high quality components.
- It is possible only to heat the dwelling, or to additionally prepare hot water.
There are also disadvantages:
- Firing up Lemax boilers is quite difficult, especially in the absence of skill.
- Natural cravings are very unstable, depending on many external factors.
Disadvantages are inherent in all non-volatile models of gas boilers. However, they are repeatedly compensated by undoubted advantages, therefore it is more correct to consider them as design features.
How does a floor-standing Lemax boiler work
The company manufactures a wide range of floor heating equipment. In her work, she uses the automation of the Italian manufacturer SIT
The principle of operation of Lemax gas boilers is simple. A gas burner is built into the housing, with the help of which the heat exchanger is heated. It has a built-in DHW coil and heating system. The coolant starts in a natural or forced way. All floor-standing versions of gas boilers are non-volatile. Gas boiler ignited with a piezoelectric element in manual mode. When the flame is extinguished, it is necessary to repeat the process of starting the combustion again.
What series and models belong to the floor
The Lemax floor standing boilers group includes the following series:
- Patriot... There are 6 models with power from 6 to 20 kW, which is optimal for apartments or small private houses.Parapet-type installations are equipped with convection holes in the body, allowing to heat the room. If such a boiler is in the kitchen, no radiators are needed. A coaxial chimney eliminates the need for time-consuming connection to a common building chimney.
- Premium... The series consists of single and double-circuit models of floor-standing gas boilers with a capacity of 7.5 to 100 kW. There are 22 models in total. Double-circuit units have the letter B. The most capacious series that allows you to choose the right boiler for any room or working conditions. The simplicity of the design makes them very reliable and durable, and the low gas consumption contributes to the popularity of this equipment.
- Premium N... They differ from the basic Premium series by the presence of the 820 Nova Sit gas valve. The rest of the features and parameters are the same as for the models of the main line, but the power of the models is limited to 35 kW.
- Wise... These boilers are a novelty, they appeared relatively recently. Made of ductile gray cast iron. They are available in 5 models with a capacity of 16, 25, 35, 40 and 50 kW. Single-circuit models with a sectional heat exchanger. They differ from conventional series by the need to connect to the power supply network.
- Leader... They are also a novelty in the Lemax range. Non-volatile single-circuit boilers with a capacity of 16 to 50 kW. Cast iron sectional heat exchanger allows to obtain high efficiency of heat energy transfer.
All models have approximately the same design, differing only in details. The presence of boilers of different capacities allows you to select the sample with one or two circuits most suitable for the proposed conditions.
Model overview
The manufacturer offers several lines in which all possible boiler designs are presented - atmospheric and parapet, single and double-circuit, steel and cast iron, floor-standing and mounted.
Wester clever
The line of four models is atmospheric convection boilers, differing only in power indicators. Wester Clever 20/30 is characterized by high heat transfer, the heat carrier at the outlet is heated up to 90 ° C. Wester Clever 30 specifications:
• efficiency - 90%.
• Heating power - 34,000 watts.
• Weighs 85 kg.
• HxWxD - 961x470x556 mm.
• Fuel consumption - 1.75 m3 / h.
Wester Clever 40 - has a higher throughput. It consumes fuel - 2.5 cubic meters per hour. Heating capacity 45,000 watts. Weighs 110 kg. The most powerful representative of the series is Wester Clever 61.
It can work non-volatile or be connected to the mains. The maximum gas consumption is 3 cubic meters. m / h. Works without interruption even at a pressure of 6 mbar.
Premium
Installed in rooms with chimneys. Power range in the line - from 8 to 100 kW. There are modifications with one and two circuits. Universal - can be connected from either side - left or right. Automatic regulation of the intensity of the fire. Made of 2mm steel sheets. Heat exchangers treated with anti-corrosion agents. Devices are provided to prevent the blowing out of the flame. As an example - Premium 16:
- The efficiency is 90%.
- Single-circuit. Atmospheric type.
- Volatile.
- Heating capacity 16,000 watts.
- Weight - 55 kg.
- Heats up to 160 m².
For heating large areas, Premium boilers 70-100 kW are suitable. These are powerful devices weighing up to 250 kg.
Premium Nova is an upgraded version of the Premium line. There is an automatic system that supports the specified parameters. Adjustment of the coolant pressure is provided.
Patriot
It is possible to work with any type of ventilation - natural or forced. Parapet and wall versions can be installed in apartments. Combustion products are discharged through a coaxial chimney. The heat exchanger is treated with an anti-corrosion compound. Power 6-20 kW. There are injection mini-torches and overheating protection. Features Premium -12.5:
• efficiency - 87%
• 12.5 kW.
• Parapet installation.
• Non-volatile.
• Closed firebox.
• 50 kg.
Wise
Material - Czech cast iron (4 mm). Ideal ratio of heat carrier volume to mass and heat exchanger area. They are not afraid of temperature and gas pressure surges. If desired, switch to liquefied fuel. It is also possible to connect indirect heating tanks, thermostats, remote climate control systems. Heating capacity in the line - from 16 to 60 kW. Wise 35 parameters:
• Single-circuit device. Floor installation.
• Open firebox.
• Heating capacity 35,000 watts.
• efficiency - 90%.
• There is an auto-ignition.
• 141 kg.
Specifications
Consider a table of the main technical characteristics of Lemax floor standing boilers:
| Characteristics | The values |
| Boiler type | Gas |
| type of instalation | Floor |
| Type of fuel | Natural, optionally liquefied gas |
| Thermal power | 6-100kW |
| Efficiency | 87 -93% |
| Gas consumption | 0.38 - 2.6 m3 / h |
| Maximum coolant temperature | 90° |
| Coaxial chimney diameter | 250-310 mm |
| Chimney length | 330-800 mm |
| Water pressure in the system nom / max | 1,5 / 2 bar |
Device
Floor-standing gas boilers Lemax have a heat exchanger in the form of a welded or cast iron container, which forms a water jacket around the combustion chamber.
A gas burner is installed in its lower part, and a gas valve, adjusting devices and connecting pipelines are located under it.... The upper part of the heat exchanger has a passage for installing a chimney, which can be of a classic or coaxial design.
The pipes for connecting the heating circuit for different models are located either on the sides or on the back of the boiler. There is also a DHW make-up pipeline (for dual-circuit models).
The operation of the unit consists in the flow of the coolant into the tank of the heat exchanger, heating and independent exit under the influence of gravity - the density of the heated layers decreases slightly, which contributes to their displacement by colder layers of liquid.
The independent circulation of the coolant is based on this effect. Hot water is heated in a copper coil installed inside the heat exchangerand.
The smoke is removed by natural oven draft.
User's manual
Operation of floor-standing gas boilers Lemax is reduced to igniting the burner as needed and setting the desired temperature. All other operations - replenishing the volume of water in the heating circuit, installing a chimney, connecting a boiler - are performed without interfering with the design of the boiler.
To ignite the burner, turn the knob to position 1, which means it is switched on to the operating mode. Then it must be drowned all the way and held while pressing the piezo ignition button.
When the pilot burner lights up, the button is released, but the regulator is held for about a minute.
It is periodically necessary to clean the internal components of the boiler from carbon deposits and soot.... You also need to monitor the condition of the heat exchanger, gas valve and other units of the unit.
Periodic maintenance should be performed by a service technician. It is not recommended to engage in these works on your own, especially if the warranty period has not yet expired.
Download instruction
Download the instruction for the floor-standing gas boiler Lemax.
About company
Lemax, or rather a group of companies, was founded in 1992. Initially, it was a trading company engaged in the wholesale supply of heating equipment and metal. Later, in the mid-90s, it was decided to create a separate division for the assembly of gas boilers under its own brand. This is also the hallmark of Lemax. The main focus is on the development and design of gas boilers using imported parts.On the one hand, this eliminates the need to organize its own technological production, but on the other hand, it makes the entire model range quite diverse, without established features and characteristics.
Many times Lemax has been the leader in sales on the Russian market. The main advantages of the products are attractive prices, an expanded network of stores and service centers, as well as the principled use of foreign parts, at least recently.
Price range
The model range of Lemax floor standing boilers is very wide, so the price range is also quite large. The lower limit is about 18 thousand rubles, and the upper one is approaching the mark of 100 thousand rubles.
For remote or hard-to-reach areas, the cost will be noticeably higher, since transportation in difficult conditions is a very costly undertaking.
NOTE!
When buying a boiler, you will have to make expenses for the chimney, delivery and installation, warranty agreement and other necessary additions. you need to be prepared for these costs, the amounts can be found out in advance.
