Lemax gas boilers are in greatest demand and are the most common among domestic manufacturers. Almost all models have an excellent efficiency of 90% (the rest - 87%), have one of the lowest gas consumption rates in the class of budget Russian boilers, and a simple and trouble-free design. There are both volatile and non-volatile models on sale, single-circuit and double-circuit, floor- and wall-mounted, with steel and cast-iron heat exchangers.
The cost of all models is within the market average and slightly higher - from 13 thousand rubles for the simplest models.
In the article we will look at the best models of wall-mounted and floor-standing gas boilers Lemax, how they behave in practice, what advantages and, most importantly, disadvantages are noted by the owners, as well as what malfunctions may arise during the operation of boiler units in real conditions.
Features of Lemax gas boilers
Gas boilers from the Taganrog manufacturer Lemax are distinguished by:
- Ease of use,
- Reliable protection for safe use,
- High efficiency,
- Long warranty period,
- Modern design.
Lemax gas boilers are produced in various classes and are suitable for heating both private houses and apartments. The power of the boilers is designed for different areas of the heated room.
Service
Maintenance requirements are quite simple, typical of all gas boilers.
- Annually inspect all connections and components of the heating system, the boiler itself, and light cleaning of the burner module.
- Every 2-4 years it is advisable to mechanically clean the heat exchanger; a feature of Lemax boilers is a removable top panel, which makes the task easier.
- Every 4-7 years we recommend cleaning the boiler heat exchanger to remove scale.
All points can be completed either independently or with the involvement of specialists (which, of course, is more effective and safer).
Premium series boilers
Premium series boilers have two model ranges of varying power and, accordingly, heated room area.
- Boilers with a power of 7.5-60 kW, made of high-tech steel 2 mm thick. The area of the heated room is up to 200 square meters. The quality of the steel meets all quality requirements of Russian and European standards.
- Boilers with a power of 70 to 100 kW, made of high-tech steel 3 mm thick. The area of the heated room is designed to be up to 500 square meters. meters.
Premium series boilers are non-volatile and operate on natural gas with natural or forced coolant circulation. The boiler heat exchanger is treated with a special anti-corrosion compound, which allows you to extend the life of the boiler.
The boilers are equipped with protection against overheating, soot formation, and draft blowing.
Universal connection on the right and left sides allows you to install boilers in any room.
Convenient system control and setting the required temperature make the Premium series boilers one of the most popular among Lemax products. Boilers are produced as single-circuit, intended for heating a room, and double-circuit, which in addition to heating the room supply hot water.
About the manufacturer
The Lemax trademark belongs to Lemax LLC (TIN 6154001478), registered in 1992 in Taganrog, the manufacturer’s address has remained unchanged to this day. The main activity is the production of gas heating boilers, but the company also produces water heaters and heating radiators. Products are distributed both through official dealers and through regular partner stores.
In addition to a large sales structure (due to demand, the brand is represented in almost all stores), the service structure is also developed, there is a hotline and a sufficient number of competent specialists in almost all regions of Russia.
The photo shows the Lemax Wise model.
In practice, boilers under the Lemax brand have really proven themselves to be reliable and trouble-free, having some of the best technical characteristics on the domestic boiler market. Often in private homes you can find models from 2005-2010 that are still working. The closest analogue is the Siberia model, which sparks debate about which of these two brands is more reliable and has a better price-quality ratio.
Review of Siberia gas boilers Some of the most reliable among domestic models
However, Lemax is the leader in demand, which can be explained by their well-known features. Gas consumption indicators are among the best among domestic models, for example, the maximum gas consumption of the most famous model Lemax Premium-10 with a power of 10 kW is 1.2 m3/hour, for Lemax Leader-16 with a power of 16 kW - 1.9 m3/hour. I would especially like to note the excellent build quality, which is not typical for domestic manufacturers: the gaps are even and minimal, everything is perfectly assembled and fixed, connections and bends do not rust even after 4-6 years of operation.
The device using the example of the Lemax Leader model.
The boiler design is standard for most domestic models: the famous Italian EuroSit automatic system and Polidoro burners. This design means that there is simply nothing to break in it. Steel heat exchangers are made of high-quality steel, which until today does not raise questions, but its thickness is only 2 mm versus 3-4 mm for analogues. Reliable and time-tested, but the fact remains a fact.
A more noticeable disadvantage is the high demands on connection, installation and configuration. Installation of Lemax boilers is somewhat more complicated than its analogues and requires certain competencies. It would not be worth focusing attention on this if it were not for the fairly frequent cases of incompetence of employees of Gorgaz, Oblgaz, etc., who make mistakes in organizing the wiring of boilers, which can lead to problems with the startup and operation of the automation (it may be necessary to replace the damaged wiring with factory).
Boilers are also demanding when it comes to the initial adjustment of the burner: if the gas pressure is too strong, frightening pops are possible when igniting; if the gas pressure is too low, there will be problems with igniting the main burner. It is especially important to comply with the requirements for the chimney: if there is insufficient draft, the draft sensor is triggered and the boiler goes out. Also, the boiler goes out even at the slightest reverse draft. However, this phenomenon is typical for all atmospheric structures that are not protected from backdraft and is only possible if there are errors in the design of the chimney.
Otherwise, the main rule is to carefully comply with all requirements, carry out installation and commissioning work correctly. According to reviews from owners and installation practice, all well-tuned boilers, regardless of the model, operate without problems for 10 years or more.
Patriot Series
Patriot series boilers are designed for use not only in private homes, but also in apartments. The chimneyless design of the boiler allows the fuel to burn in a special closed compartment.
The chimneyless system allows you to install boilers in apartments; combustion products are removed through a coaxial chimney. The air intake comes from outside.
- The boiler power ranges from 6 to 20 kW.
- The modern equipment of the burner from the Italian company SIT makes the operation of the boiler convenient and of high quality.
- The boilers are also protected by the system from overheating; the heat exchanger is coated with an anti-corrosion compound.
- Boilers can be either floor-mounted or wall-mounted.
Price range
The cost of Lemax Premium series boilers ranges from 17,500 rubles. up to 32,000 rub . This price is typical for large cities in the central regions of Russia; for remote settlements the cost will increase due to logistics conditions.
When purchasing a boiler, you must take into account that the basic package does not include a chimney and additional devices, so they will have to be purchased separately. You should also immediately conclude a warranty agreement in order to be able to seek help in case of unexpected breakdowns.
Leader Series
Leader series boilers are equipped with cast iron heat exchangers made in the Czech Republic. Cast iron heat exchangers coated with a special anti-corrosion compound provide the boiler with good heat transfer. The thickness of cast iron is 4 mm.
- The boilers are equipped with protection against soot formation and overheating. The boiler power ranges from 16 to 50 kW.
- Boilers are produced only as single-circuit boilers with an injection burner and a gas valve made in Italy.
- The boiler is equipped with piezo ignition, which allows you to conveniently light the boiler. The thermomanometer displayed on the panel allows you to control the temperature and pressure of the gas.
The most expensive models of Lemax boilers. The manufacturer promises a boiler service life of up to 25 years.
PRIME series
PRIME series – wall-mounted gas boilers with a power from 18 to 32 kW. Convenient operation and installation of Lemax boilers of this series makes them popular among users. The boilers are equipped with a brass hydraulic hammer, which does not allow the system to fail when the water supply pressure changes.
The closed combustion chamber allows you to use a boiler in a private house or apartment, removing combustion products through a coaxial chimney.
- The boilers are double-circuit, which allows not only to heat a room of up to 300 square meters. meters, but also use hot water.
- Boilers depend on electricity, which is not always convenient when the power goes out frequently. To ensure uninterrupted operation of the boilers, a generator is installed in this case.
Basic problems and solutions
For the convenience of considering the most common malfunctions, we will compile a table:
| Problem | Cause | Solution |
| The main burner turns off | Weak draft (vacuum), the chimney is clogged with frost or debris. The gas pressure is weak or the adjustment is incorrect | Clean the chimney, adjust the gas pressure |
| Gas smell | Gas leak due to loose connections | Turn off the gas tap and report any leaks to the gas service. |
| Elongated orange flames | Weak draft, Clogged burner nozzles | Clean the chimney or nozzles |
| Coolant circulation is weak or completely absent | The required slope was not specified during installation. There is not enough water in the system. Airy areas. | Ensure the slope of the pipelines. Add water to the specified level. Bleed air from the system. |
| Boiler shutdown | Stopping the gas supply | Close the gas supply valve |
| The boiler does not turn on | The thermocouple contacts have oxidized. The thermocouple has failed | Clean contacts or replace thermocouple |
Wise Series
The boilers are floor-standing, equipped with cast iron heat exchangers made in the Czech Republic. The thickness of cast iron is 4 mm. A touch control panel, piezo ignition, anti-corrosion protection, and a possible switch to liquefied fuel allow you to use the boiler in comfortable conditions.
Due to cast iron, the boiler has significant weight, which creates difficulties in its installation. But the durability of cast iron and the ease of repairing the boiler make it possible to justify this drawback.
Positive aspects of Lemax boilers
- All boilers have high efficiency from 90 to 92.5%, which allows you to significantly save on gas bills.
- Equipped with piezo ignition.
- The heat exchangers are treated with an anti-corrosion compound, which makes it possible to extend the service life of the boilers.
- The warranty period for service is 2-3 years.
- Equipped with a draft sensor, which allows the system to respond to interruptions in the ventilation of the firebox.
- There are single-circuit and double-circuit boilers, floor-mounted and wall-mounted, which allows you to choose the required boiler.
- The boilers are adapted to Russian reality and are easy to maintain.
- You can always find the necessary part in stock in case of a boiler malfunction.
- Detailed operating instructions are written in Russian, which does not require additional translation.
- The boilers are equipped with reliable imported automatic equipment from trusted foreign partners.
- Modern design.
- Ease of use.
Disadvantages of Lemax boilers
- Boilers are quite expensive.
- Cast iron heat exchangers are heavy, which makes transportation and installation difficult.
Ignition of the boiler
- Open the gas tap.
- The boiler is ignited by turning the thermostat knob to the ignition position.
- Press the knob all the way, holding it for 60 seconds, and at the same time press the piezo ignition.
- The main burner is turned on by moving the ignition knob to the “Flame” position or positions from 1 to 7 and set the required temperature.
- When turning off the gas supply, move the knob to the “Off” position.
Lemax gas boilers occupy leading positions in the Russian market. High-quality modern gas equipment allows you to satisfy all user requests.
Modern design, high efficiency, ease of use allows you to make your choice in favor of Lemax gas boilers.
Instructions for connecting and starting
The boiler is installed in a well-ventilated room with a volume of at least 8 m3. A layer of sheet non-combustible material is first laid on the floor, a sheet of metal is placed on top, then the boiler itself is installed. After this, the appropriate communications are connected - coolant, gas and water.
It is necessary to place an expansion tank at the top point of the system to protect the boiler from loads during expansion of the heating agent..
The gas connection is made in compliance with all safety rules; the tightness of the connections must be checked with a soap solution.
Before the first start, it is necessary to check the presence of traction. Then, turn the control knob to turn on the ignition position. Press the control knob all the way down, simultaneously press the piezo ignition button and hold it for 10 seconds to 1 minute.
The pilot burner will light, after which the knob is held pressed for about another minute..
After this, it is rotated and installed in the desired position. If the ignition attempt is unsuccessful, it can be repeated no earlier than after 1 minute.
Download instructions
Download instructions for Lemax Premium boilers.
