TOP of the best single-circuit gas boilers for heating
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Gas boilers are considered the most convenient and efficient sources of thermal energy. Several design options have been developed, which have remained virtually unchanged for many years. Manufacturers create only one or another version of the basic schemes based on the initially developed project. All functions of the units are additions to the main type of gas boiler — a single-circuit floor model designed to perform the main task.
Floor single-circuit gas boilers and their features
The design of floor single-circuit gas boilers is economical and simple. They are able to perform the only basic function — they heat the coolant for the heating system. These units do not perform any additional tasks, so the set of units and parts of the unit is limited — only the most necessary elements are involved in the work.
In addition, the floor mounting method allows the use of durable and powerful units with increased weight and capabilities. This makes the design more powerful, capable of developing high performance.
Most models are equipped with massive heat exchangers that have a high heat transfer capacity and accommodate an increased volume of liquid. There are no restrictions on weight or dimensions for floor-standing boilers, so the power can be 100 kW or more. Many units can be connected in a cascade (usually up to 4 units), creating a high-capacity thermal plant.
Another feature of single-circuit floor boilers is the ability to connect an external storage boiler. Such a bundle allows you to get not only heating the house, but also a stable supply of hot water. Most experts consider this option to be more preferable than using a double-circuit boiler, since the mode of supply of hot water from the boiler is even, without temperature fluctuations or pauses.
The best Russian floor single-circuit boilers
Lemax Premium-20
Lemax Premium-20
Products of the eponymous plant from Taganrog. A non-volatile floor standing boiler with a capacity of 20 kW is capable of heating a house of 200 sq. m. The high demand for Lemax boilers indicates the demand and positive attitude of users towards domestic heating units.
Its main characteristics:
- Efficiency — 90%;
- coolant temperature (max) — 90 °;
- pressure in the heating system (max) — 3 bar;
- fuel consumption — 2.4 m3 / h;
- dimensions — 556x961x470 mm;
- weight — 78 kg.
Lemax Premium-12.5
Lemax Premium-12.5
Another representative of the Taganrog plant, designed to work in relatively small rooms. With a power of 12.5 kW, this boiler can heat an area of 125 square meters. m., which is suitable for country or country houses. The boiler is relatively small, but its capabilities allow you to get the maximum effect.
Unit parameters:
- Efficiency — 90%;
- coolant temperature — 90 °;
- pressure in the heating system (max) — 3 bar;
- fuel consumption — 1.5 m3 / hour;
- dimensions — 416x744x491 mm;
- weight — 60 kg.
Lemax Leader-35
Lemax Leader-35
Powerful (35 kW) floor-standing boiler capable of serving a house or public space of 350 sq. m. An open-type combustion chamber, which requires connection to a central chimney. A feature of this model is the cast iron heat exchanger, which provides high heat transfer and a stable heating mode.
Other parameters:
- Efficiency — 90%;
- coolant temperature — 95 °;
- pressure in the heating system (max) — 4 bar;
- fuel consumption — 4 m3/hour;
- dimensions — 600x856x520 mm;
- weight — 140 kg.
ZhMZ AOGV-17.4-3 Comfort N
ZhMZ AOGV-17.4-3 Comfort N
Product of the Zhukovsky Mechanical Plant. Power 17.4 kW, which is designed for heating 140 square meters. m. Non-volatile design makes the unit resistant to all changes in the situation. If necessary, the boiler can be reconfigured to supply with liquefied gas, which further increases its autonomy.
Boiler parameters:
- Efficiency — 88%;
- coolant temperature — 90 °;
- pressure in the heating system (max) — 1 Bar;
- fuel consumption — 1.87 m3 / hour;
- dimensions — 420x1050x480 mm;
- weight — 49 kg.
Rostovgazoapparat AOGV
Rostovgazoapparat AOGV
The unit of the Rostov plant, with a capacity of 11.6 kW. Designed for heating 125 sq. m. usable area. The unit differs from other models in its cylindrical shape, which looks somewhat old-fashioned. However, this does not affect the quality and parameters of the boiler.
Its operating parameters:
- Efficiency — 90%;
- coolant temperature — 95 °;
- pressure in the heating system (max) — 1 bar;
- fuel consumption — 1.18 m3 / hour;
- dimensions — 410x865x410 mm;
- weight — 49 kg.
The best foreign floor single-circuit boilers
Protherm Wolf 16 KSO
Protherm Wolf 16 KSO
The brainchild of Slovak engineers, the Volk 16 KSO floor-standing boiler is designed for heating medium-sized private houses. With a power of 16 kW, it can heat 160 square meters. m. The unit is non-volatile, which is atypical for European models — they prefer full-featured designs. In addition, it is equipped with a two-way heat exchanger, which increases the performance of the unit.
Main characteristics:
- Efficiency — 92.5%;
- coolant temperature — 80 °;
- pressure in the heating system (max) — 1 bar;
- fuel consumption — 2.4 m3 / h;
- dimensions — 390x745x460 mm;
- weight — 46.5 kg.
BAXI SLIM 1.230 iN
BAXI SLIM 1.230 iN
Italian boiler from a well-known European manufacturer. Its power is 22.1 kW, it is designed to work in a room of 220 sq.m. The heat exchanger of this boiler is made of ductile cast iron, the warranty period is 2 years.
Boiler characteristics:
- Efficiency — 90.2%;
- coolant temperature — 85 °;
- pressure in the heating system (max) — 3 bar;
- fuel consumption — 2.59 m3 / h;
- dimensions — 350x850x600 mm;
- weight — 103 kg.
MORA-TOP SA 20G
MORA-TOP SA 20G
Czech engineers offer users a 15 kW boiler capable of heating 150 square meters. m. area. The cast-iron heat exchanger stabilizes the operation of the system and equalizes the temperature, eliminating sudden jumps. An additional plus is the non-volatile design, which expands the capabilities of the unit in difficult conditions.
Boiler parameters:
- Efficiency — 92%;
- coolant temperature — 85 °;
- pressure in the heating system (max) — 3 bar;
- fuel consumption — 1.6 m3 / h;
- dimensions — 365x845x525 mm;
- weight — 99 kg.
MORA-TOP SA 60
MORA-TOP SA 60
Another Czech boiler with a capacity of 49.9 kW. Suitable for heating a house of 500 sq. m., as well as for public or commercial premises. The boiler is equipped with a cast-iron heat exchanger consisting of 7 sections. Electronic control provides constant control over the mode of operation of the system.
Unit characteristics:
- Efficiency — 92%;
- coolant temperature — 85 °;
- pressure in the heating system (max) — 3 bar;
- fuel consumption — 5.8 m3 / h;
- dimensions — 700x845x525 mm;
- weight — 208 kg.
Protherm Bear 40 KLOM
Protherm Bear 40 KLOM
Slovak outdoor unit, whose power is 35 kW. Heating area — 350 sq. m. The features of the boiler include the design of the heat exchanger — this is a cast-iron two-way assembly of 5 sections.
- Efficiency — 90%;
- coolant temperature — 85 °;
- pressure in the heating system (max) — 4 bar;
- fuel consumption — 4.1 m3 / h;
- dimensions — 505x880x600 mm;
- weight — 130 kg.