Time to Replace The Furnace Filter

by Calista

Furnace Filter Replacement
No matter which size BTU a commercial or central home heating systems happens to be, furnace filters are required to be replaced. Replacing furnace filters is crucial to efficient operation. The cleaner the air circulated through the furnace, the less mechanical problems or, in the worst-case scenario, furnace failure, will occur. The cost of furnace filters being relatively inexpensive, it’s prudent to purchase enough furnace filters for a full winter season.

How Often Should Furnace Filters Be Replaced?
Professional heating and cooling experts recommend replacing furnace filters every 6 weeks, depending on age and furnace use and type of furnace filters recommended by the furnace manufacturer. Check the furnace operations and maintenance manual, or “Users Manual”, supplied by the manufacturer and provided by the installer. These manuals serve as a reference point for the correct type of furnace filter and for the types of parts that may need replacement.

One of the most important things to keep in mind is the specific size of the furnace filter. During time of purchase, it will be necessary to choose the correct size. Look for a number that is indicated by width, length and thickness. As an example, one of the most common furnace filter sizes is 16 x 25 x 1, although there may be others that are smaller or larger than this.

Replacing Furnace Filter

Replacing Furnace Filter

Types of Furnace Filters
The materials from which furnace filters are made are also fairly common:
1. Fiberglass
2. Electro-static synthetic fibers
3. Polypropylene

The types of furnace filters available range from the least expensive fiberglass filters to the most expensive which are a combination of an electrical air filtration and an air cleaner system.

Furnace Filters for Specific Needs
If allergies are a serious problem, furnace filters with the designation “HEPA”, are most effective in reducing dust and pollen in indoor air. There are other types of furnace filters that are designed with a 90% arrestance of irritating substances in air flow. Take note of the sizes of micron particles a furnace filter is designed to capture.

Installing a Furnace Filter
Installing a furnace filter is relatively simple. Do not attempt to replace or install a furnace filter without first turning the furnace blower to the “OFF” position. Check your Users Manual to locate the blower section of your furnace. In most cases, a slot is located between the blower and filter housing. Simply, slide the furnace filter in with the air flow arrow pointed in the designated direction on the furnace filter and replacement is complete.

Furnace Filters:

Nordic Pure 20x25x5 Honeywell Replacement AC Furnace Air Filters, MERV 12, Box of 2Nordic Pure 20x25x5 Honeywell Replacement AC Furnace Air Filters, MERV 12, Box of 2Nordic Pure air filters have an actual size that is a fraction of an inch smaller than the standard size (also known as "nominal size"). The size prin... Read More >
Filtrete 9831DC-6 Dust and Pollen Filters, 600 MPR, 16 x 25 x 1, 6-PackFiltrete 9831DC-6 Dust and Pollen Filters, 600 MPR, 16 x 25 x 1, 6-PackDust & Pollen Plus, 16' x 25' x 1', Filtrete Filter, Captures Large Allergens Like Mold Spores & Pet Dander, 20 Times More Effective Than Ordinary Fib... Read More >
Filtrete 9801-6PK Micro Allergen Reduction Filters, 1000 MPR, 16 x 25 x 1, 6-PackFiltrete 9801-6PK Micro Allergen Reduction Filters, 1000 MPR, 16 x 25 x 1, 6-PackFILTRETE TM MICRO ALLERGEN REDUCTION FILTERFor people who want to help reduce allergens. And microscopic particles from the air in their homes. 3M (MPR) Micro particle performance. Rating 1000. Captures large airborne allergens like household
Nordic Pure 16x25x1 AC Furnace Air Filters MERV 12, Box of 6Nordic Pure 16x25x1 AC Furnace Air Filters MERV 12, Box of 6Our anti-allergenic Merv 12 pleated HVAC filters significantly reduce dust in home and reduce dust mites, mold spores, pet dander, pollen, smoke particles, and other airborne particulates by up to 97.8%.
Vent Register FiltersVent Register FiltersElectrostatic vent register filter ... Read More >

Replacement Guide

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