Min. heat output
The minimum heat output at which the heating boiler can operate in constant mode. Operation at minimum power allows you to reduce the number of on-and-off cycles that adversely affect the durability of heating boilers.
Coolant min. T
The minimum operating temperature of the heat medium in the boiler system when operating in heating mode.
Coolant max. T
The maximum operating temperature of the heat medium in the boiler system when operating in heating mode.
Heating circuit max. pressure
The maximum pressure in the heating circuit of the boiler, at which it remains operational, and there is no risk of physical damage to the structure. For a heating system, the maximum pressure is usually about 3 bar, and for a domestic hot water circuit up to 10 bar. When the maximum pressure is exceeded, a safety valve is activated, and part of the water is discharged from the system until a normal pressure level is reached.
Wi-Fi
The boiler has a Wi-Fi module. This function is often used to remotely control the unit from a smartphone, tablet or other device. The specific features of such control may be different: for some models, you need to install a special application, for others, control is available through a page in any browser; the gadget can be connected directly or via the Internet, etc. The details of using Wi-Fi in each case should be clarified separately. Note that through such a communication channel, you can not only control the unit but also receive notifications from it — about the operating mode and parameters, about the current state, about failures and malfunctions, etc. At the same time, this function is relatively rare. In most cases, traditional control is sufficient.
"Summer" mode
It is an operating mode designed for the warm season. In this mode, it works only to provide domestic hot water, and the heating is turned off. If the boiler is equipped with an outside temperature sensor, this sensor is also switched off in
summer mode so that the heating does not turn on at night when the outside temperature drops.
Programmable thermostat
The presence of a programmable thermostat in the design of the boiler.
Programmable thermostat is a device that allows not only to maintain the temperature but also to programme the operation of the boiler for a certain time. The simplest programmable thermostats cover a day, and more advanced ones allow you to set the operating mode for individual days of the week. Anyway, this function provides additional convenience and eliminates the need to adjust the operation of the boiler manually. On the other hand, the presence of a programmable thermostat affects the cost.
Central heating flow
The diameter of the pipe for connecting the pipe through which the heated water enters the heating system from the boiler.
Diameters are indicated in inches. In some cases, it is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size. Among which models stand out for
3/4",
1",
1 1/4" and
1 1/2".
Central heating return
The diameter of the pipe for connecting the pipe through which the cooled water returns from the heating system to the boiler.
Diameters are indicated in inches. In some cases, it is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size.
