Gas boiler equipment today is becoming more and more popular with the installation of heating systems in private houses within the city and suburban buildings, where central communications are not supplied. Among other market offers, one-circuit and two-circuit models, floor and wall versions of equipment, with or without chimneys, can be distinguished.
Devices can be volatile or standalone. All these parameters are important to consider when buying heating equipment. For example, wall mounted boilers have less power than floor standing boilers. They are able to heat a not so impressive area. However, their installation is simple, and the designs are compact in size and attractive in design.
As for floor models, they are usually installed in large rooms. Their weight is significant, therefore, hanging such equipment on the wall is prohibited. The unit requires its own foundation, which should not be connected to the base of the house itself. If you still do not know which model of gas heating equipment to purchase, then it is worth considering at least one of them. A great example is the Navien Deluxe, which will be discussed below.
24K boiler overview
You can purchase the installation mentioned above for 25,000 rubles. It is a convection equipment that has two circuits. This suggests that with the help of the unit it will be possible not only to provide heating, but also the supply of hot water in the house. The device has a stable anti-freeze system, it can be used with a low inlet fuel pressure in the gas pipeline system.
The kit comes with a remote control that simplifies operation. The heat exchanger is made of stainless steel. The design provides for the availability of a modulated turbocharging system. Navien Deluxe provides stable and safe operation even with frequent voltage fluctuations in the mains.
If the room temperature drops to a certain point, then the automatic equipment will work in the boiler, which protects it from freezing. When the temperature of the heating water drops to 10 ° C, the circulation pump starts, this happens automatically. Using it, the device circulates the coolant in the system. If the temperature of the heating water drops to 6 ° C, the burner will turn on, which will contribute to the heating of the coolant to 21 ° C.
Specifications
“Navien Deluxe” has a power of 24 kW, which is mentioned in the name. The heating area reaches 240 m 2 . The efficiency is 90.5%. This boiler is wall mounted and has a closed combustion chamber. The convection unit has electronic control.
Heating boilers can be classified into models that are connected to a single-phase network, as well as devices that operate on a three-phase power supply. On sale you can find models connected to a single-phase or three-phase network. As for the described equipment variant, it works from a single-phase network.
There is a built-in expansion tank and a circulation pump in the design. Navien Deluxe uses natural or liquefied gas as fuel. The consumption of the latter is 2.15 kg / h. If the equipment will use natural gas in its work, then its consumption will be 2.58 m 3 / h.
Before purchasing the described device, it is important to take an interest in the pressure of natural gas as well, the nominal value varies from 10 to 25 mbar. The coolant temperature can reach 80 ° C, while its minimum value is 40 ° C.
The permissible pressure of liquefied gas is 28 mbar. The gas boiler "Navien Deluxe" provides a hot water capacity, which is equivalent to 13.8 liters per minute. The maximum water pressure in the circuit is 8 bar. As for the water pressure in the heating circuit, it reaches 3 bar.
Consumer Reviews
Before you purchase the described device, you need to get acquainted with the opinions of consumers. From them you can find out that the manufacturer has equipped the boiler with functions like a manometer, thermometer, auto ignition, room thermostat and flame modulation option. The reviews about Navien Deluxe also indicate that the display and the remote control act as additional features.
Protective functions are:
- overheat protection;
- gas control;
- auto diagnostics;
- frost prevention mode;
- air vent;
- safety valve.
Additional opinions
The dimensions of the device, according to consumers, are quite compact and amount to 440x695x265 mm. To connect, you need the diameter of the gas pipe, it is 1/2 ", the same parameter is inherent in the pipe for connecting the hot water circuit.
But when connecting the heating circuit, you can use the pipe, the diameter of which is 3/4 ". The gas boiler" Navien Deluxe 24 "is also popular with consumers because it has a small weight, the weight of the device is 28 kg.
Operation under voltage fluctuations
The manufacturer made sure that the boiler can work stably, ensuring safe operation with frequent voltage fluctuations in the electrical network. If they reach 30 ° C, the protective chip on the microprocessor is triggered. At the same time, the device will work without stops and malfunctions, thereby extending its life. Failures can be prevented.
Reduced pressure operation
Navien Deluxe, the price of which was mentioned above and is acceptable for most consumers, will be able to operate at a low inlet fuel pressure in the gas pipeline system. You can use hot water at its low inlet pressure. The boiler will operate at rates up to 0.1 bar. Thanks to this, the unit can be operated in residential premises where there is a weak pressure of water in the water supply system. Sometimes it also happens that the operation of the water supply system is characterized by pressure drops. Under such conditions, the equipment will also remain operational.
Finally
The gas boiler Navien Delux Coaxial 24k has many advantages over analogues. For example, a remote control is supplied. His scoreboard is Russified, which allows you to control the operation of the device, save gas and reduce heating costs, while maintaining a comfortable temperature, taking into account the specific features of the room. Using this function, you can set the most suitable mode for heating household water.
The remote control has a liquid crystal display with built-in backlight, which will allow you to change the parameters of the boiler, even in a dark room. This is true, because the described equipment is usually installed in utility rooms, where lighting is not always good.