Radiators of water heating, or simply batteries used in centralized heating systems, distribute heat through the rooms according to the principle of passive convection.
This approach is not very rational in terms of heat loss, especially if the battery is in the corner of the room.
For this reason, there are convection radiators equipped with a fan, which improve the distribution of heat in the room, accelerating the circulation of air between sections of the battery.
In this workshop I will show how to pump a conventional battery to a convector do it yourself.
Step 1: Fan Assembly
I took 4 fans Brushless DC Cooling Fan 7 Blade 24V 120mmx120mx25mm.
This type of fan works very quietly and fits well in size under my battery. The connection of 4 such fans is enough for my pipe in length.
Fan Specifications:
- 7 plastic blades
- speed 1600 rotations per minute
- air flow of 58 cubic meters. ft / min
- noise 38 dB.
- power supply: direct current 24V, 0.20A
These fans cost me 1200 rubles with delivery. Structural strength is provided by cable ties that pass through the holes in the corner of each fan and connect them together.
Step 2: wire connection
Fans use standard 2-pin connectors, as in motherboards. They hold copper cables well. You can also combine 2 connectors with a small piece of cable by inserting one into the back of the second.
This will help reduce the number of cables connecting the fans to the power source. The power source is connected by a 2-wire AC cable on one side and DC cables from the fans on the other.
The switch and standard plug on the end of the AC cable are not shown in the photo. I took the power supply like this - 24V Universal Regulated Switching 25W Power Supply.
Step 3: Verify Fan Operation
I connected the fans and checked their operation before installing them under the battery.
Step 4: Feet and Other Finishes
I equipped my fans with 4 legs from a corner cut into 15-centimeter segments. Then he just put the section under the battery. As a result, I got an excellent heat distribution around the room, with the help of almost silent fans, consuming a total of 24 watts:
- fans: 4 * 0.2A * 24V = 19.2 W
- power consumption: 80% of the total supply
- total power: 19.2 / 80% = 24W
That's how I pumped my standard battery of water heating to a convection radiator.