Problems of heating water and heating can be easily solved if gas communications are connected to the house. In this matter, the main thing is to choose the right boiler, which will occupy a central place in the heating system project. Almost all modern gas heating appliances are easy to operate, safe and reliable. But when buying, you need to observe some nuances. For example, boilers can be single-circuit or double-circuit. The former are designed exclusively for heating, while the latter can also heat water.
Features of choice
Devices can be floor standing or wall mounted. 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 dwelling and your own needs. Among others, the Vailant boilers should be highlighted, reviews of which you can read below.
Specifications for model VU 242/5-5H-RU/VE
This boiler is a wall-mounted device and is suitable for houses under construction and renovation, as well as apartments where it is not possible to install a chimney. Installation can be carried out in a residential area. The boiler is suitable for operation in dusty areas. The removal of combustion products is carried out forcibly 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. The coaxial chimney can have a diameter of 60 to 100 mm. Natural gas is consumed in the amount of 2.8 m3/h. The volume of the expansion tank is 10 liters.
Reviews of the Vaillant boiler say that the equipment weighs 41 kg. The additional pressure of liquefied gas is 0.028 bar. The heating temperature can vary from 30 to 80 °C. The allowable natural gas pressure is 0.013 bar. Flue gas temperature at minimum and maximum power is 103 and 126 °C, respectively. This traditional equipment has a heat input in the range of 26.7 kW. The boiler is single-circuit and has a closed combustion chamber.
Reviews about the model
This wall-mounted boiler "Vailant", reviews of which are only positive, according to consumers, is good because it can be used in dusty rooms. The minimum side clearance required is 10 mm as all units are accessible from the front. Equipment possibleset in a residential area that buyers see as an added benefit.
The power of the machine can be adjusted using a simulated burner. It is made of chromium-nickel steel. Depending on the design solution of the boiler room, a turbocharged boiler allows you to create a smoke exhaust system and air supply through the wall. Buyers like that the device has electronic ignition. In combination with a water heater, water heating is possible.
It is possible to combine equipment with heaters for domestic water preparation. The expansion tank is closed. The device provides for a circulation pump with stage switching. 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 for 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 select the optimal operating mode. Electronic ignition and combustion control ensure safe operation.
After reading the reviews about the Vaillant boiler, you can understand that its power is 120 kW. This wall mounted hardware has a height and depth thatare equal to 960 and 602 mm, respectively. Thermal power is 123.4 kW. The allowable natural gas pressure reaches 0.02 bar. Equipment weighs 90 kg.
The heating temperature is 85°C or less. Natural gas is consumed in the amount of 12.1 m3 per hour. Power consumption is 160 watts. At 100% thermal power, the efficiency reaches 108%. This boiler is single-circuit and has a closed combustion chamber.
Reviews about the model
After reading the reviews about the Vaillant boiler, which was described above, you can understand that it is very convenient to use. In combination with a DHW cylinder, the equipment is capable of heating hot water. Access to internal parts, according to consumers, is simplified due to a well-thought-out design. If necessary, you can create a cascade of six boilers, the total capacity of which will reach 720 kW.
Equipment, as emphasized by users, 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 set the appliance to partial power. An expansion tank and a hose for filling and draining from below can be connected to the unit.
Vailant gas boiler device
Vailant gas appliances 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 fuel combustion occurs. In parallel with this, heat and oxidation products are released. The main task is to generate 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. The cooled products of combustion enter the chimney and go outside.
Depending on the design features of the heat transfer device, the devices can have a plate or bithermic appearance. The double heat exchanger is a two-part assembly. One is necessary for the heating circuit and consists of copper pipes and plates. The surface is covered with a protective layer, which is necessary for protection against corrosion. Its main task is to transfer heat. The second part of the double heat exchanger is necessary for the preparation of hot water. It consists of plates that transfer heat to the heated medium.
The biothermal device is a pipe within a pipe. The inner part is necessary for the preparation of hot water, while the outer part is designed to heat the room. Quite important for gas appliances is the ignition option. This device is responsible for the combustion of fuel. Ignition can be piezo or electric.
Specifications and reviews of the 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 heat exchanger for hot water preparation. The burner is made of chromium-nickel steel. The boiler is not used for cascade installations, which, according to consumers, is not very convenient.
The unit has permanent frost protection. After reading the reviews of the owners about the Vailant boiler, you can understand that it has a rather impressive power, which is 24 kW. The depth and width of the case are 338 × 440 mm, respectively. Flue gas temperature 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 the Vailant gas boilers, you can understand whether such installations are suitable for you. For example, in the case of the described model, we can say that it is quite technologically advanced. 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.
