1. Appropriate capacity
Wall packages have a specific capacity. If you choose a package that does not have a suitable capacity, you will face many problems in providing hot water. Important factors such as the size of the place, the type of heating system, the distance to the last radiator and the number of toilets will help you in choosing a wall package. Of course, there are other standards for some sizes, depending on which the capacity of the wall package is determined. Also, in areas where the air density decreases due to the height above the sea level, the height correction factor should be considered. Because the basic capacity of the package decreases depending on the air density.
2. With or without a fan
The wall package is equipped with a closed combustion chamber that directs the smoke and gases from combustion to the outside through the chimney. This chimney is installed on the package in the form of double walls and takes the air required by the device into the suction and removes toxic gases. Choosing and using the fan wall package has no restrictions for installation. It can be installed even outside the environment such as balcony and yard. Due to the closed combustion chamber, wind and storm cannot extinguish the flame and interfere with the system's performance.
3. Single converter or double converter wall package
At present, two types of single converter and double converter wall packages are sold in the market. In the wall package with two exchangers, one exchanger supplies the hot water consumption and the other exchanger is responsible for providing the required heating for the heating system of the radiators. Choosing and using the wall package with two exchangers can easily provide uniform hot water for the residents. Also, because it has two converters; Later than the single-converter package, sediments accumulate. But the single-converter package has a main converter to supply hot water and radiators, which can cause system performance to fluctuate and pressure drop.
4. Consider the chimney
Fan package should be used for the last floors of the building. Because in these floors, the vertical length of the chimney pipe is less than 3 meters. But if the horizontal length of the chimney pipe in the lower floors is less than one meter, the package without fan can be used. Of course, considering safety and to prevent the leakage of toxic gases resulting from the combustion of the package, we suggest using a wall-mounted package with a fan, especially with a double-walled chimney.

5. Attention to hot water consumption
Supplying the amount of hot water consumed is considered a good feature of the wall package. If a lot of hot water is used, it is better to use a package with a tank with a thermal power of more than 31000 watts.
6. The head of the colation pump
Another feature of a good wall package is the pump head of the device. To buy a wall package, it is very important to pay attention to the piping route and pressure drop. Also, depending on the type of pipe used in piping, the system drop will be different. Circulation pump head is designed for more than 35 to 50 meters of pipe path. Of course, the flexibility and low roughness of the pipes and the need for different connections will reduce the pressure drop in these types of systems.
7. Package error display
Automatic troubleshooting is another factor that is one of the features of a good wall package. Packages that are equipped with an automatic fault finding system or error code display can show the best performance. If a problem occurs, these sensors will detect the problem of the device and by activating the error codes on the package display, it will let you know that there is a malfunction in the system.

8. After-sales service
The most important features and characteristics of a good wall package is its valid warranty. There are many domestic companies that manufacture and export wall packages that can provide warranty and good after-sales service and support wall package parts in the long term. The main features and features of a good wall package are its warranty and after-sales service.
9. Manufacturing company
Many manufacturers in the country are active in the field of construction and production of wall packages. Shofajkar, with many years of experience in making floor and wall packages in specific capacities, is considered one of the most prominent package brands. The work heating packages have all the characteristics of a good wall package.