Furnace Filters: 5 Types of Furnace Filters.
The choice of furnace filters for your San Antonio house can not only save you money, but also improve the air quality in your home. Choosing your furnace filter depends on how much you want to spend, what you’re trying to filter, and how diligent you are about changing the filter.
Many filters carry a MERV (minimum efficiency reporting value) rating, which indicates their effectiveness. The higher the MERV rating, the more effective. Most spun filters have a MERV rating of 4, while standard pleated filters average MERV 6, electrostatic pleated versions start at MERV 8, with the highest quality ones hitting MERV 12-16.
We show you five common types of filters, available in all sizes and prices:
Furnace Filters # 1: Disposable Fiberglass.
When we talk about “furnace filters” this is the common option, created from 1″-thick spun fiberglass. It stops particles like dust, lint, and litter from accumulating in your furnace system. This type of filter is very inexpensive; it is good for renters and people with no signs of allergies or asthma. MERV rating 2-3.
Furnace Filters # 2: Disposable Pleated.
This furnace filter is made from polyester and cotton paper, it removes small particles like spores and mites, this filter is relatively inexpensive, although it needs to be changed constantly to avoid clogging, not changing the filter frequently could create an air flow struggle, making your system more expensive to operate. MERV rating 6.
Furnace Filters # 3: Permanent Electrostatic.
An electrostatic filter uses self-charging electrostatic cotton or paper fibers, attracting particles as small as .3 micron. (1 micron = 1/25,000 in.). A safe static charge is produced by forcing air across the filter. This static charge attracts and traps airborne particles into the filter just like a magnet. Permanent electrostatic filter options have a removable, machine-washable filter that can be removed and reused for six to eight years. Electrostatics are more effective than pleated, all thought they can be expensive in custom sizes. MERV rating: 8
Furnace Filters # 4: Disposable Electrostatic.
Great for homes with children, pets, or smokers. A disposable electrostatic filter is similar to the permanent electrostatic; it also uses self-charging electrostatic cotton or paper fibers, attracting small particles. Affordable in standard sizes, but also, custom sizes are expensive, especially if replaced yearly. MERV rating: 10
Furnace Filters # 5: High-efficiency Pleated.
This type of filters is used in hospitals because they screen out the smallest particles. Perfect option for people with respiratory problems: such as asthma and allergies. These furnace filters are made from deep 4-5″ pleated synthetic cotton, attached to a very stiff metal grid to stop leaks or fluttering, but it can only be installed in special housing due to thick size. MERV rating 14-16
So when choosing furnace filters, keep in mind your needs as well as price and what features each particular style has to offer. Don’t wait until furnace problems find you! Call IKE’S San Antonio and make an appointment to maintain your furnace today and keep your system running efficiently and your family breathing better! Click here to save 15% on your service with this link.