Furnace Filter Diagram. These are typically printed on their frame in length x width x height format along one of the sides of your filter. Which filter you need depends on the model of your furnace and the size of the furnace cabinet.
Place the filter with an arrow pointing toward the furnace in the direction of air flow. Untpikapps diagram information discount furnace filter. Make sure that it fits properly and there are no gaps left on the sides.
One may also ask do you have to turn off furnace to change filter.
Position the new filter ensure that the slot and the ducts are clean then insert the new filter facing the proper direction. Determine where on the furnace you can find the filter air box. Filtering methods downflow furnaces non ducted return air for unducted return air systems either the optional grille and frame assembly or the optional wall mount grille is recommended. To change your home air filter youll need to turn off your furnace.