Gas boiler Buderus: review TOP-13 two-circuit and wall models, especially the features of using devices

Brand "Buderus" - the world-famous German brand of gas boilers, which currently belongs to the company "Bosch".

In Russia the company operates since the spring of 2004, has a large network of branches with regional warehouses, service and training centers.

All models for our country take into account the negative features of operation: unstable parameters in the water and gas pipes, electrical voltage fluctuations and poor water quality.

Rating TOP-13 best gas boilers Buderus

Location	Name	Price
Top 3 best two-circuit boilers Buderus
1	Logamax U072-12K	Learn the price
2	Logamax U072-18K	Learn the price
3	Logamax U054-24K	Learn the price
Top 3 best single-circuit boilers Buderus
1	Logamax U072-18	Learn the price
2	Logamax U052-24	Learn the price
3	Logamax U054-24	Learn the price
Top 3 best Buderus floor standing boilers
1	Lemax Premium-30N	Learn the price
2	Lemax Leader-35	Learn the price
3	Lemax Wise 25	Learn the price
Top 4 best wall mounted gas boilers Buderus
1	Buderus Logamax U054-24K	Learn the price
2	Buderus Logamax U072-18K	Learn the price
3	Buderus Logamax U072-24	Learn the price
4	Buderus Logamax U052-24K	Find out the price

How to choose and what to pay attention to?

When choosing a boiler model, you need to consider a number of parameters that you need to know in advance:

region of operation;
The volume of the heated room;
the thickness and material of the walls;
The presence of windows and forced ventilation systems.

The best two-circuit boilers "Buderus"

Logamax U072-12K

Popular two-circuit wall mounted gas boiler with a maximum Power up to 12 kW and the area of space heating up to 120 square meters..

It has a closed combustion chamber and high efficiency of more than 90%.

Of the additional options are a gas leakage safety system, as well as automatic protection against freezing and overheating, the boiler switch indicator and the system of automatic ignition.

Technical characteristics:

closed combustion chamber;
Consumption by combustion of natural gas 2 cu. m/h
consumption by burning liquefied gas 1,5 kg/h;
range of degrees in heating system varies from 40 to 82 °С;
volume of the expansion tank 8 l;
is able to produce hot water at 25 ° C up to 8.5 l / min.

Advantages of

it has an electronic control system;
copper heat exchanger;
built-in expansion tank and circulation pump;
can operate alternatively on natural gas and liquefied gas.

Disadvantages

Logamax U072-18K

One of the best models: wall-mounted, two circuits with a maximum capacity of 5,4 to 18 kW and a maximum heating area of 180 square meters.

Has a gas leakage safety system, auto-diagnostics, flame modulation, as well as automatic antifreeze and overheating protection, power-on indicator and automatic ignition system.

Technical characteristics:

Closed combustion chamber;
Efficiency over 92%;
Consumption at natural gas combustion from 2,1 m³/h;
Consumption by burning liquefied gas from 1,5 kg/h;
Range of degrees in heating system varies from 40 to 82 °С;
Can produce hot water at 30 ° C up to 8.5 l/m.

Advantages

has an electronic control system;
copper heat exchanger;
built-in expansion tank and circulation pump for the coolant;
can operate alternatively on natural gas and liquefied gas.
expansion tank volume is 8 liters.

Disadvantages

Logamax U054-24K

Very popular model: wall-mounted, two circuits with maximum power 8 to 24 kW.

Includes automatic gas leakage diagnostics and safety system, flame modulation, as well as automatic anti-freeze and overheating protection, power-on indicator and automatic ignition system.

Technical characteristics:

Open combustion chamber;
Efficiency over 91,30%;
Consume while burning natural gas from 2,68 m³/h;
consumes by burning liquefied gas from 1,89 kg/h;
range of degrees in the heating system varies from 40 to 60 ° C;
Can produce hot water at 35 ° C up to 12.5 l/m.

Advantages

has an electronic control system;
copper heat exchanger;
built-in expansion tank and circulation pump for the coolant;
can operate alternatively on natural gas and liquefied gas.
expansion tank volume is 8 liters.

Disadvantages

The best single boiler "Buderus"

Logamax U072-18

Excellent model: wall-mounted, single circuit with a maximum output of 5.4 to 18 kW and a maximum heating surface up to 180 sq. m..

It has gas leakage safety systems, automatic diagnostics, flame modulation, as well as automatic anti-freeze and overheating protection, switch-on indicator and automatic ignition system.

Technical characteristics:

Closed combustion chamber;
Efficiency over 92%;
Consume while burning natural gas from 2,1 m³/h;
Consume while burning liquefied gas from 1,5 kg/h;
Range of degrees in heating system varies from 40 to 82 °С;
optimal pressure of natural gas from 10,50 to 16 mbar.

Advantages of

electronic control and copper heat exchanger;
built-in expansion tank and circulation pump;
expansion tank volume 8 l;
operate on natural or liquefied gas.

Disadvantages

Water heating is not enough, it is necessary to have a gas boiler.

Logamax U052-24

This boiler is also a very successful model: when mounted on the wall its one circuit output from 9.3 to 24 kW.

There are safety options, automatic diagnostics, flame modulation. The system has frost and overheat protection, automatic ignition, manometer with thermometer and pump lockout protection.

Technical characteristics:

Closed combustion chamber;
Efficiency about 90.03%;
consumes when burning natural gas 2.61 cubic m/h;
consumes by burning liquefied gas from 1,94 kg/h;
heating system temperature range from 45 to 82 ° C;
optimal pressure of natural gas 13 mbar.

Advantages

electronic control and copper heat exchanger;
built-in expansion tank and circulation pump;
the volume of the expansion tank 8 liters;
operate on natural or liquefied gas.

Disadvantages

there is no separate heating of the flow water.

Logamax U054-24

A successful model of boiler with wall mounting, which is similar to the previous one, but has some differences in characteristics.

This unit also has standard safety options, automatic diagnostics and flame modulation, as well as freeze and overheat protection, automatic ignition, pressure gauge with thermometer and pump lockout protection.

Let's examine the data:

Open combustion chamber;
Efficiency of about 91,35%;
consumes when burning natural gas from 2,68 cubic metres per hour;
consumes while burning liquefied gas from 1,89 kg/h;
range of degrees in heating system up to max 88 °С;
Can produce hot water at 25 ° C up to 8.5 l/m.

Pros of

electronic control and copper heat exchanger;
built-in expansion tank and circulation pump;
the volume of the expansion tank 8 liters;
operate on natural or liquefied gas.

Disadvantages

The best floor standing boilers Buderus

Lemax Premium-30N

Energy independent boiler with mechanical control and steel heat exchanger Capacity of 30 kW, working only on natural gas.

Able to heat up to 300 square meters.

Technical parameters:

Efficiency of about 90%;
Consume while burning natural gas 3.5 cubic meters / hour;
The maximum temperature in the heating system is 90 ° C;
maximum water pressure in the heating system 3 mbar;
optimal pressure of natural gas 13 mbar.

Advantages

open combustion chamber;
it is possible to heat large areas.

Minuses

no cast iron heat exchanger;
does not work on liquefied gas;
no electronic control system.

Lemax Leader-35

Energy-independent boiler with mechanical control and cast-iron heat exchanger Capacity of 35 kW, working only on natural gas.

Able to heat a room of up to 350 square meters. meters.

Slightly different parameters:

Efficiency of about 90%;
consumes when burning natural gas 4 cubic meters / hour;
maximum temperature in the heating system is 95 ° C;
maximum water pressure in the heating system 4 mbar;
optimal pressure of natural gas 13 mbar.

Pros of

there is a cast-iron heat exchanger.

Minuses

no electronic control system.

Lemax Wise 25

Boiler with electronic control and cast iron heat exchanger with a capacity of 25 kW, Operating both on natural and liquefied gas.

Parameters:

Efficiency of about 90%;
consumes during the combustion of natural gas 1.5 cubic metres per hour;
The maximum temperature in the heating system is 90 ° C;
maximum water pressure in the heating system 4 mbar;
optimal pressure of natural gas from 6 to 25 mbar.

Advantages

electronic control;
cast-iron heat exchanger.

Disadvantages

The best wall mounted gas boilers Buderus

The four best wall mounted Buderus boilers are an excellent solution for heating an apartment, cottage or small country house.

There is a difference in technical characteristics, which we will specify for each model.

Buderus Logamax U054-24K

Two-circuit convection boiler with an open combustion chamber of 24 kW, which does not Having a built-in circulating pump.

There are standard safety options, automatic diagnostics, as well as anti-freeze and overheating protection, automatic ignition, manometer with thermometer and pump lockout protection.

Slightly different parameters:

Efficiency of about 91.35%;
consumes when burning natural gas 2,86 cubic meters/hour;
consumes while burning liquefied gas 1,89 kg/h;
is able to produce hot water of 35 ° C in the volume of 12.5 liters/minute;
maximum temperature in the heating system 88 ° C;
optimal pressure of natural gas 13 mbar.

Advantages of

have an electronic control system;
copper heat exchanger;
built-in expansion tank;
can operate on both natural and liquefied gas.

Cons

No circulation pump.

Buderus Logamax U072-18K

Two-circuit convection boiler with a closed combustion chamber of 18 kW, Having in the complete set of the circulating pump.

The boiler is equipped as standard with safety and automatic diagnostic options, as well as protection against freezing and overheating.

There is automatic ignition, pressure gauge with thermometer and protection against pump blockage.

Slightly different parameters:

Efficiency of about 92%;
consumes when burning natural gas 2.1 cubic meters / hour;
consumes while burning liquefied gas 1,5 kg/h;
Can produce 30 ° C hot water in an amount of 8.6 liters/minute;
The maximum temperature in the heating system is 82 ° C;
optimal pressure of natural gas from 10.5 to 16 mbar.

Advantages of

there is a circulation pump;
has an electronic control system;
copper heat exchanger;
built-in expansion tank;
can run on both natural and liquefied gas.

Disadvantages

Buderus Logamax U072-24

Single convection boiler with a closed combustion chamber with a capacity of 24 kW, With a circulating pump and can heat an area of 250 square meters. meters..

The boiler has standard safety options, automatic diagnostic, anti-freeze and overheating protection, automatic ignition, manometer with thermometer and protection against pump blockage.

Parameter differences:

Efficiency of about 92%;
consumes when burning natural gas 2,80 cubic meters/hour;
consumes while burning liquefied gas 2 kg/hour;
The maximum temperature in the heating system is 82 °С;
optimal pressure of natural gas 10 to 16 mbar.

Advantages of

there is an electronic control system
copper heat exchanger;
built-in expansion tank;
works on natural and liquefied gas.

Disadvantages

there is no heating of the flowing water by a separate contour.

Buderus Logamax U052-24K

Two-circuit convection boiler with closed combustion chamber of 24 kW, not that has a built-in circulation pump.

The boiler has all safety and automatic diagnostic options, as well as frost and overheating protection. There is automatic ignition, pressure gauge with thermometer and protection against pump blockage.

Slightly different parameters:

Efficiency of about 90.03%;
consumes when burning natural gas 2,63 cubic meters / hour;
consumes while burning liquefied gas 1,94 kg/h;
Can produce hot water of 35 ° C in the volume of 12.5 liters/minute;
The maximum temperature in the heating system is 82 ° C;
optimal pressure of natural gas 13 mbar.

Advantages of

there is an electronic control system;
copper heat exchanger;
built-in expansion tank;
works on natural and liquefied gas.

Disadvantages

No circulation pump.

Types of boilers "Buderus"

For ease of classification, the entire line of products can be divided according to the method of installation and design

According to the method of installation all boilers "Buderus" are subdivided:

wall;
floor-mounted.

According to the structural design, there are separate features:

single-circuit or double-circuit;
open or closed combustion chamber;
natural or forced draught;
cast-iron or steel heat exchanger;
supercharged or atmospheric burner.

Condensing

Boilers of this type are innovative in the field of heating equipment, they have a higher efficiency in comparison with conventional heaters.

This is achieved by using the thermal energy, which previously was simply "flown out into the pipe" with the combustion products.

The principle of operation of these modifications relies on the use of isolated heat during combustion, part of which goes into the atmosphere, for heating the coolant fed into the boiler furnace.

Wall-mounted

These versions are most often used for independent heating of apartments, as well as small cottages.

Their popularity is due to their compact size and the possibility of installation in a limited space.

Single-circuit

The simplest, compact and economical inexpensive models.

The burner of such boilers can operate both in the heating mode and in economy mode, maintaining a set minimum temperature of the coolant.

Two-circuit

The main advantage of such models is the possibility of independent heating of the coolant and water in the flow heater mode.

In the summer, when the heating of the room is not required, the boiler can operate as a simple gas boiler.

Floor-standing .

The power of such devices is larger than that of wall-mounted counterparts, it usually ranges from 50 to 100 kW.

These versions are used for heating houses, as well as various rooms and non-residential buildings.

Such boilers can have atmospheric or supercharged burners, they have cast iron heat exchangers more often than steel.

How to choose the output?

To select the right choice, you need to consider a number of parameters: the area of the room, ceiling height, availability of ventilation system, insulating capacity of the walls.

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