The problems of heating water and heating can be easily solved if gas communications are connected to the house. The main thing in this matter is to choose the right boiler, which will occupy a central place in the design of the heating system. Almost all modern gas heating appliances are easy to operate, safe and reliable. But when buying, you must observe some nuances. For example, boilers can be single-circuit or double-circuit. The former are intended solely for heating, while the latter can also heat water.
Features of choice
Devices can be floor or wall. For the first you need a boiler room. Some models require an electrical connection, while others are non-volatile. The device may have a chimney. You can determine these parameters yourself, taking into account the parameters of the home and your own needs. Among others, it is worth highlighting the Vailant boilers, reviews of which you can read below.
Specifications of the model VU 242 / 5-5 H-RU / VE
This boiler is a wall-mounted device and is suitable for houses under construction and reconstruction, as well as apartments where it is not possible to install a chimney. Installation can be carried out in the residential area. The boiler is suitable for operation in dusty rooms. The removal of combustion products is forced through the duct system.
This 24 kW Vailant boiler, reviews of which you can read below, has the following parameters: 440 × 800 mm. Its power consumption is 142 watts. A coaxial chimney can have a diameter of 60 to 100 mm. Natural gas is consumed in a volume of 2.8 m 3 / h. The volume of the expansion tank is 10 liters.
Reviews of the Vailant boiler say that the equipment weighs 41 kg. The additional pressure of the liquefied gas is 0.028 bar. The heating temperature can vary from 30 to 80 ° C. Allowable natural gas pressure is 0.013 bar. The temperature of the flue gases at minimum and maximum power is 103 and 126 ° C, respectively. This traditional equipment has a heat input of 26.7 kW. The boiler is single-circuit and has a closed combustion chamber.
Model reviews
This wall-mounted boiler “Vailant”, reviews of which are only positive, according to consumers, is good because it can be operated in dusty rooms. The minimum required lateral clearance is 10 mm, since all nodes are accessible from the front. Equipment can be installed in a residential area, which customers consider an additional advantage.
The power of the device can be adjusted using a simulated burner. It is made of chrome nickel steel. Depending on the design of the boiler room, a turbocharged boiler allows you to create a smoke exhaust system and air through the wall. Customers like the device to have electronic ignition. In combination with a water heater, water heating is possible.
You can combine equipment with heaters for the preparation of household water. The expansion tank is closed. The device provides for the circulation pump with switching stages. The primary heat exchanger is made of copper. According to consumers, the efficiency can be equal to or greater than 91%. Reading reviews of Vailant heating boilers, you can understand that they have intelligent control that allows you to adjust the pressure in the heating system.
Specifications of the EcoTEC Plus Model
This device is intended for heating apartments and country houses. The unit has a fan. The dimensions of the case are small, which ensures ease of installation. At the bottom there is a control panel that allows you to choose the optimal mode of operation. Electronic ignition and combustion control allow safe operation.
After reading the reviews about the Vailant boiler, you can understand that its power is 120 kW. This wall-mounted equipment has a height and depth of 960 and 602 mm, respectively. Thermal power is 123.4 kW. Allowable natural gas pressure reaches 0.02 bar. The equipment weighs 90 kg.
The heating temperature is 85 ° C or less. Natural gas is consumed in the amount of 12.1 m 3 per hour. Power consumption is 160 watts. With one hundred percent thermal power, the efficiency reaches 108%. This boiler is single-circuit and has a closed combustion chamber.
Model reviews
After reading the reviews about the boiler "Vailant", which was described above, you can understand that it is very convenient in operation. In combination with a DHW cylinder, the equipment is capable of heating hot water. Access to internal parts, according to consumers, is simplified thanks to a smart design. If necessary, you can create a cascade of six boilers, the total power of which will reach 720 kW.
The equipment, as users emphasize, can be installed in a residential area. The power of the device is adjustable from 20 to 100% using a modulating burner. It has a forced mixing function. For hot water and heating, you can configure the device for partial power. An expansion tank and a hose for filling and draining from below can be connected to the unit.
The device of the gas boiler "Vailant"
Gas appliances "Vailant" have inside:
- burner;
- heat exchanger;
- automation.
The shape of the burner and its design are different for devices operating on different types of fuel. In gas models, this is the chamber where the combustion of fuel occurs. In parallel, heat and oxidation products are released. The main task is the generation of energy for heating the coolant. Above the burner is a heat exchanger, which is a container with a coolant. Combustion products rise along its walls and transfer heat to the water. It, in turn, is distributed through the pipes of the heating system. Chilled products of combustion enter the chimney and go outside.
Depending on what are the structural features of the device for heat transfer, the devices may have a plate or bithermic form. The dual heat exchanger is a two-part assembly. One is needed for the heating circuit and consists of copper pipes and plates. The surface is covered with a protective layer, which is necessary to protect against corrosion. Its main task is heat transfer. The second part of the dual heat exchanger is necessary for the preparation of hot water. It consists of plates that transfer heat to a heated medium.
A biothermal device is a pipe in a pipe. The inside is necessary for the preparation of hot water, while the outside is for heating the room. Quite important for gas appliances is the ignition option. This device is responsible for burning fuel. The ignition may be piezoelectric or electric.
Specifications and reviews on the model VUW 242 / 5-3
This gas wall-mounted double-circuit boiler Vailant, reviews of which will be presented below, is a unit with a closed combustion chamber. It has a primary copper heat exchanger and a plate flow heat exchanger for preparing hot water. The burner is made of chrome nickel steel. The boiler is not used for cascade installations, which, according to consumers, is not very convenient.
The unit has a permanent frost protection. After reading the owners reviews about the Vailant boiler, you can understand that it has quite impressive power, which is 24 kW. The depth and width of the body are 338 × 440 mm, respectively. The temperature of the flue gases at minimum and maximum power is 103 and 126 ° C.
Additional specifications
The heating temperature can vary from 30 to 80 ° C. The volume of the expansion tank is 6 liters. After reading the reviews about Vailant gas boilers, you will be able to understand whether such installations are suitable for you. For example, in the case of the described model, we can say that it is quite technological. You can control all functions using only one panel. The design provides for the presence of electronic ignition, which, as consumers emphasize, is very convenient.