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Suncourt -- Inductor 4" In-Line Duct Fan With Cord (DB204-CRD) - Includes installed electrical cord with grounded plug. Cord length - 6 feet.The Inductor In-Line Duct Fan solves air delivery problems without major system rework or expense. Double crimped for easy flex duct installation. Duct Diameter: 4" Unit Weight: 4.5 Lbs. Max Boosted CFM: 80 Free Air CFM: 65 Amps: 0.30 Housing Length: 6" dBA: 52 Blade Type: Polycarbonate NEVER expose your Inductor to airflow temperatures exceeding 140F (60C). · Make sure all electrical wiring conforms to all applicable codes and standards. If you are not familiar with electrical installations, consult a qualified electrician. · Never use an Inductor for dryer venting. Why do I have a room that is always too cold? Your problem room may be located far from the furnace. Friction in the long duct reduces airflow to the register in that room, thus delivery of heated air. Also, perhaps the room is over an unheated garage or the duct is simply too small (undersized) to get enough heated air to that room. Remember too, when you are delivering heated air to a room, that air has to have a way to get out of that room. Otherwise there will be no air circulation. Does the room have an air return register? If not, is the door of that room kept closed, stopping air circulation? Why do I have a room that is always too hot? The room that you have a cooling problem with may be far away from the central air system. Long duct runs cause reduction in airflow, plus, the cooled air may have heated up before it gets to the problem room. Perhaps the problem run is to a room on the South side of the house, which has a large window, catching a lot of summer heat. Chances are that your 'hot' rooms are on the second level of your home. You see, cooled air is dense and heavy. It doesn't like to flow upstairs. This is a very common problem, worsened by undersized ductwork and inaccessibility of those ducts. Particularly for upstairs cooling problems, select the largest fan you can fit and use duct diameter expanders & reducers to adapt to the ducts already in place. What boost can I expect from an Inductor? A standard floor or wall register is normally fed by a 6" diameter duct. You would like to boost the airflow from that register because you have a room that is usually cold in the winter or hot in the summer. The airflow from that register may be as low as 20 or 30 Cubic Feet of air per minute. Expect this particular example to have double the airflow when an Inductor is installed. What temperature difference does boosted airflow make? This is dependent on a host of variables. How well insulated is the room? What heat gain in the summer through a window? How far is the register from the furnace? Is this room over an unheated garage? Etc. Here is an example: During the winter heating season, you need a room about 4 F warmer than it is. To achieve this you will need 11% more airflow out of the register(s) in that room assuming that your furnace runs 60 minutes out of the hour. If your furnace runs 20 minutes out of the hour on a cold winter day, that is 1/3 of an hour. You will need 3 times the 11% or 33% boost. In most applications, an Inductor will boost up to 80%. Thus, well up to the task of warming up a room. How much power does an Inductor use? Example: The DB206, 6" diameter Inductor is rated at 0.35 Amp. For a 120 Volt product, that is 0.35 x 120 = 42 Watt. This is the maximum motor STARTING Watts. Once the fan runs, the actual wattage is 27 Watts. Like a small light bulb. In the Suncourt product specifications section, Inductors are listed by Amperage. As a rule of thumb, running Amperage is about 60% of the listed (start) Amperage. So, to figure it out: Listed Amperage times Voltage (120 Volt) equals startup Watts. Actual running Watts are about 60% of that. What type of motors are used in Suncourt products? The electric motors used in Suncourt products a
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