The difference between unit heater and fan coil

Have you ever paid attention to the issue of what kind of equipment provides the necessary heating in large sheds? To find out the answer to this question, read the mentioned materials until the end of this article to get to know two models of best-selling heating equipment.
Among the hot and cold air distribution devices, we can mention unit heaters and fan coils, which have almost the same function. Both are made of coils (meandering tubes with fins) and fans, where cold or warm water flows inside the coils, and the air is passed by the fan around (the outer surface) of the coils so that the particles collide with each other. Air with a cold surface or hot surface of the coil, cold or warm air enters the environment inside the building. The fan coil is used for both cooling and heating, But the heater unit is mostly used for heating. In this article, we are going to discuss the difference between a unit heater and a fan coil. Stay with us to learn more about how this equipment works.
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The difference between the performance of the heater unit and the fan coil

In the unit heater, the hot water or steam required by the unit heater coils is supplied from the central engine room of the building by running and installing pipes to the hot water coil of each heater unit. But in fan coils, due to the possibility of providing cooling and heating of cold water from the chiller and hot water from the central heating boiler, bypassing the air through the copper coil, which contains hot water in winter and cold water in summer, hot air and cool air provides in different seasons of the year.
Another point about the difference between unit heaters and fan coils when choosing them is to pay attention to the tolerable working pressure of their coils; Because according to the use of fan coils in high-rise office and residential apartments (even up to 50 floors and more), the fan coil you choose, despite the use of pressure-relief valves in the pipes, must withstand the pressure of the water column of the floors. have

The difference between the use of unit heaters and fan coils

The most important difference between a heater unit and a fan coil is in the possibility of providing cooling (in addition to heating) in the fan coils, as well as the power of their output air. The wind throw power of the unit heater is higher than that of the fan coil due to the use of an axial fan, and for this reason, it is only used for heating in large halls such as industrial sheds, sports sheds, exhibition halls, etc., which have high ceilings. But fan coils are only used in residential, commercial, office, educational, etc. buildings that have short to medium roofs.

Types of unit heaters and fan coils

The heater unit has different types in terms of installation location, appearance, and use. In the following, we try to get acquainted with the kinds of unit heaters and fan coils.

Types of fan coils

Simple fan coils: they are mostly single coil or double pipe and cannot change from cooling to heating at the same time.
Ground fan coil: it emits cool or warm air to the environment in the form of updraft or updraft, and they are offered with an aeration capacity of 200 to 1200 cubic feet per minute (CFM).
Ceiling fan coil: They are produced and supplied in models without a cabin and with a cabin, and they have a ventilation capacity of 200 to 1200 cubic feet per minute (CFM). The installation location of the ceiling fan coil is usually on top of the false ceiling (at the entrance of each room).
Fan coil fan: They are one of the types of ceiling fan coil whose coil part is installed inside the false ceiling and their temperature and speed can be controlled by remote control in addition to the room thermostat.
Wall-mounted fan coil: Wall-mounted fan coil is one of the latest fan coil models that is installed on the wall and has attracted the attention of construction project developers.
Channel fan coils: Channel fan coils are produced and supplied in two types, horizontal and vertical, and in capacities of 600 to 2000 cubic feet per minute (CFM).

Types of heater units

Hot water and steam heater units: Water heater units need a heat source such as a central engine room to provide heating. The hot water or steam produced in this central engine room is supplied to the heater units installed in the hall through piping with the appropriate diameter and calculations and using the required circulator pump, and after the coil is vented, the airflow through the coil causes heat to blow. The air conditioner goes to the place where the unit heaters are installed.
Electric heater unit: Using an electric heater unit is suitable for people who want to heat their living room but don't want or can't run gas lines or a central engine room. It should be noted that electric heater units do not need a central engine room.
You can also read the article COMPARISON OF GAS HEATER WITH RADIANT HEATER for more information.

Heater unit and fan coil components

The main components of the fan coil:

• Coil with 14 fins per inch
• Electro-Motor
• air blower (centrifuge)
• distillation tray

The main components of the heater unit:

• Coil with 8 fins per inch
• Axial ventilation fan
• Cabinet or compartment

Conclusion

The most important factor for choosing the right fan coil and heater unit is to pay attention to the capacity, type, and dimensions of the installation location of the device; Because this equipment is produced and supplied in different types with different aeration capacities, and you should consider the size and use of your environment before making a purchase so that the best purchase is made. On the site of the specialized collection of Dematehez, technical information of dozens of models of fan coils and unit heaters from reputable brands with original warranties has been presented, so that you, dear ones, can enjoy the good feeling of optimal and smart shopping.

Final speech

The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.

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