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Anonymous users2024-01-24Mainly depends on the speed matching after selection, if the speed meets the direct drive, the motor can also be built-in, but the built-in cost is a little higher than the external one. Some domestic fan impellers are not well balanced, do not dare to use too high speed, and there will be problems after running for a period of time, so they can only be driven by external belts.
It may be different because the number of motors is different.
Any security door has an outer hinge door, and Panpan is no exception. >>>More
Residential flue refers to the vertical pipe products used to remove kitchen smoke or bathroom exhaust gas, also known as exhaust duct, ventilation duct, and residential exhaust duct. Flues, ducts used to remove smoke from kitchen cooking activities or toilet turbidity. Residential flue is the main component of the common exhaust duct system of residential kitchen and bathroom. >>>More
The key to the use of the kitchen is "exhaust fumes", because Chinese like to use hot oil pans to stir-fry dishes, which will produce a lot of harmful fumes and must be discharged outdoors immediately. Imagine, where the kitchen is made without windows, where is the fumes discharged? Therefore, it is most reasonable to choose a place with a window for the kitchen.
What you are talking about is what type of exhaust fan with a small motor is, whether it is a barrel wall type or a window type, there are many varieties.