Whenever autumn comes, residents of private houses check the heating systems that rested during the summer for functionality. For some owners, it becomes a real surprise to refuse to function or a malfunction in the boiler. Before the cold, some hastily searched for devices to replace old ones.
Boiler selection
It is not worth buying the first unit that comes across, because it is better to devote several days to this in order to study the features and specifications that will allow you to choose the right model. Among other market offers, it is worth highlighting floor gas double-circuit boilers, which are classified according to several criteria, namely:
- functionality;
- type of coolant;
- ignition method;
- type of camera;
- type of traction;
- heat exchanger material;
- volatility.
Before making an acquisition, you should pay attention to the efficiency. For most modern models, this parameter varies from 80 to 92%. But condensation models have a coefficient from 102 to 109%. For some, the dhw performance is of utmost importance. In one minute, the boiler will dispense a certain amount of water, which is heated by the equipment to a predetermined temperature. Usually this value reaches 17 liters per minute, while the minimum volume of water supply is only 2.5 liters per minute.
Heating devices can be quite powerful, in which case they give out more than 30 liters per minute. Choosing a floor gas double-circuit boiler, you must also take into account the maximum water temperature. This value is usually 55 ° C. But the maximum water temperature in the heating circuit can be 90 ° C. If you want to make a choice based on the technical characteristics and features of a particular model, then you need to consider several options for heating equipment. The most popular will be discussed below.
Review of models: "Pechkin KSGV-20"
This equipment has a cost equal to 18690 rubles. It is a floor-mounted version of a heating device, which has automation and is subject to operation in enclosed spaces. Among them should be allocated rooms for domestic use in apartments and country houses.
The maintenance of this floor-mounted double-circuit gas boiler is adapted for operation in a closed heating system. The unit has a robust welded structure, gas outlet pipe and gas burner with controls. The boiler can be used not only for heating, but also for supplying hot water.
Overview of the technical characteristics of the KSGV-20 models
The power of this equipment option is 20 kW. The maximum heat input is 24 kW. The permissible pressure of natural gas is 0.013 bar. For connection, you may need data such as the diameter of the chimney, it is 120 mm.
At 25 ° C, the performance of this unit is 5 liters per minute. Before purchasing any floor-mounted double-circuit gas boiler, you need to inquire about its size. In the case of the described device, the dimensions are 720x340x490 mm. The unit weighs 58 kg. The heating temperature can vary between 40 and 90 ° C. The maximum consumption of natural gas is 2.45 m 3 / h.
Model reviews
Quite often, when buying heating equipment, consumers are guided by the reviews of those who have already managed to test a particular device. If you are also one of them, you can be sure that consumers note: the unit is adapted to work in a closed system, it operates on natural traction and has a high coefficient of efficiency.
Consumers emphasize that the boiler has a large area of heat transferring surfaces. It is characterized by low levels of emissions of harmful substances. Installing this unit is very simple. On the back surface you will see threaded pipes with which you connect to the heating system.
When consumers consider double-circuit gas floor-standing boilers of Russian production, they especially pay attention to the presence or absence of the ability to adjust and maintain a certain temperature. This model has a thermostat for this, with which you can modulate the flame of the main burner. But with the help of the handle you can control the device. It is located on the front panel.
The unit, according to consumers, is also good because it is unpretentious in maintenance and equipped with modern automation, which ensures safety. The equipment operates silently and is characterized by reduced gas consumption. Gas with a nominal pressure of 1274 Pa acts as fuel. Before installing the boiler, you must make sure that the room temperature is within the range of 1 to 35 ° C.
Overview of the boiler brand "Bear 50 KLZ" from Protherm
If you want to choose the best double-circuit floor gas boiler, then you should pay attention to equipment with European quality. An excellent example in this case is the Bear 50 KLZ model. This unit is manufactured in the Czech Republic and has a rather impressive cost - 144,188 rubles. This equipment is installed on the floor, can operate on main or liquefied gas.
The device is a dual-circuit, which indicates the possibility of using it not only for heating, but also for hot water supply. The unit has an open combustion chamber, and for the forced removal of combustion products requires the connection of a fan. The device provides for a 10-liter expansion tank.
When considering floor-standing gas household double-circuit boilers, you should definitely pay attention to the material at the base of the heat exchanger. In this case, they are cast iron, which increases the reliability and life of the device. In order for the coolant to be reliably protected from overheating, the manufacturer took care of the presence of a cooling circuit in the system. Electric ignition ensures easy start-up of the unit.
Technical Overview
The power of the aforementioned boiler is 49 kW. It has a simulated burner. The maximum heat input is 50 kW. The flue gas temperature is 15 ° C. During operation, liquefied gas is consumed in the amount of 3.8 m 3 / h.
The heating temperature reaches 85 ° C. The water supply or boiler is connected with parameters equal to 3/4 R. You may also be interested in the weight of the equipment. In the case of this model, the mass of the device is especially important, because it is large (210 kg) and will require a reliable foundation. The device belongs to the X4D IP class of protection.
The outlet hot water temperature can vary between 40 and 70 ° C. The maximum consumption of natural gas is 5.2 m 3 / h. The diameter of the chimney may also be of interest to home craftsmen, it is 180 mm. Quite often, consumers also pay attention to the efficiency, it is equal to 92% at 100% thermal power.
Overview of Buderus boilers
Buderus double-circuit floor gas boiler is available for sale in several models. Among the main advantages of such equipment should be highlighted:
- the ability to keep the room clean;
- simplicity of management;
- affordable cost;
- ease of operation;
- availability of additional features.
Additional advantages of these devices include a high efficiency, which sometimes reaches 100%. Boilers have different capacities ranging from 24 to 28 kW.
Among other offers of the company should be allocated "Logano s111". This boiler is made of stainless steel. But the Logano s825l model can work not only on gas, but also on solid fuel. This product is a three-way fire tube unit.
If you need to arrange a system with natural circulation of water, then you can purchase the Logano g221 20 model, which is perfect for this. The double-circuit floor gas boiler “Buderus” is also offered to consumers in the Logamax u072 24k model, which has a closed combustion chamber. A pleasant bonus for the consumer is modern design.
If you want to purchase equipment that will run on liquefied gas or solid fuel, you can also pay attention to the Buderus g125 25 ws model. This equipment option is a floor-mounted gas cast-iron double-circuit boiler. It is noteworthy that all devices meet European quality standards.
Overview of boilers of the brand Navien GST 35KN
This device with an open combustion chamber costs 49,310 rubles. The equipment includes advanced technologies in the field of heating, which have been accumulated by the company's specialists for many years. This boiler is a pretty powerful tool for creating warmth and comfort in the house. With it, you can also provide hot water.
Considering the floor-mounted double-circuit gas boilers "Navien", you should pay attention to the described model, which in size is not larger than other units of this type. Sometimes the dimensions are smaller than their counterparts. This simplifies not only the operation process, but also the installation progress. The boiler is offered for sale in two colors - golden and silver. This emphasizes its class and gives the units a rich look, as well as the room where the installation will be made.
What to look for before choosing a Navien model
Assembly is carried out in South Korea. Warranty from the manufacturer - 24 months. The unit can run on natural gas. Before purchasing, you need to pay attention to the fact that the boiler does not have weather-dependent automation, as well as a built-in Wi-Fi module.
Overview of floor boilers Baxi. Model Reviews
Baksi double-circuit floor gas boilers are offered for sale in a wide range. Among other models, one can distinguish SLIM 2.230 i s, the cost of which is 92,320 rubles. The power of the unit is 22.1 kW. Efficiency reaches 90%. This device has an open combustion chamber and a sectional heat exchanger. You may be interested in overall dimensions that are equal to 850x650x600 mm.
Overview of the Baksi boiler with atmospheric burner
If you are considering double-circuit floor gas boilers of Russian production, then you should definitely pay attention to the SLIM 2.300 i s model, which is similar to the above, but has an atmospheric burner. According to the company, this unit is a sales leader, and its cost is 95100 rubles. The efficiency is 90%. The power of the device is equivalent to 29.7 kW.
Conclusion
Floor standing boilers with more impressive power are more expensive than wall mounted models. But with the help of a dual-circuit version of the equipment, you can provide not only heating, but also the supply of hot water. However, before making a choice, you must decide what characteristics the device will have. Among others, the area of the heated room should be highlighted. After calculating the power of the unit, you must choose equipment that will not work for wear. Indeed, at the same time, the boiler will quickly fail, so the capacity should be taken with a margin.