Exhaust fan is another way to help ventilate exhaust air into the outside. Or outside the room to have good air Or fresh air to replace But when thinking of choosing an exhaust fan to install in the house How should we choose or have a technique?
How to buy an exhaust fan
Room style - if it is a completely closed room Should be attached with a suction system, if it is a room with air circulation, it can be attached with a suction-only system. Some rooms may only need to suck the air out. Only like the kitchen
Installation point - must consider the direction of air flow in the room. The ventilation fan should be installed on the side. That receives the inflow of air in the room If the wall is able to suck the air through it. Use a wall-mounted or a glass-mounted one. But if it cannot be directly drained, it must be installed in the ceiling.
Room size - calculation method to select the size or Part of the ventilation fan According to the volume of air in the room is Room volume = width x length x height (in meters) size required or CMH = room volume x standard - CMH = cubic (cubic) meter per hour can be converted into cubic feet per hour. Or CFH by multiplying CMH by 35.32, or reducing the units per hour to per minute. By dividing by 60 (the standard value is a number in relation to the expected ventilation rate Will be in each room type) Kitchen should use the standard value of 15, Bathroom should use the standard value 10, Living room and bedroom should use the standard value 6 should choose a model with a CFH size higher than the calculated value. To ensure that the ventilation rate is met
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How to install an exhaust fan
Set the ventilation fan installation point so that its position is opposite the direction of the air intake. Or near the point where Need high ventilation Height should be approximately 1.80-2.40 m.
Measure the width of the fan and make a mark on the wall, mark it as a measurement line so that it does not tilt.
Drill the wall with a chisel and a hammer drill, if the wall is concrete and edging it neatly, try bringing the ventilation fan to fit it. If it's a wooden wall, use a jigsaw to cut the wall along. And then decorate according to the angle Again with a chisel and bolster the wood inside as well Prevent wall collapse when mounting the fan
Attach the fan to the hole drilled by Remove the core, separate the fan. The wind is out - inside. Drill the wall, attach the fan to the wall. Be careful to check that the suction direction of the fan is in the desired direction. The cement wall should The screw anchors are also embedded when mounting the fan.
Route the wires from the mains to the same plug in the nearest place, with the cord as close as possible to the corner of the room.
Put the plug on the end of the extension cord near the exhaust fan.
Experiment, plug in and turn on the ventilation fan, check the suction direction - out.
How to clean the exhaust fan
Prepare old newspaper to place the components. Of the exhaust fan removed To prevent various stains that may be stained
Remove the impeller cover. By turning it clockwise And pull out the propeller Gloves should be worn to prevent stains during work.
Then remove the outer cover of the machine Until you see the nut attached to the fan base using a screwdriver
After that pull the fan base out from the inner cover.
Clean the impeller. And the detachable fan base to wash Using dishwashing liquid or detergent mixed with water, use a soft sponge to wipe clean. Dirt and oil stains should not be scrubbed with Scotch Brite. Because it may cause scratches When it is dry then put it in the same place.