Archive for January, 2011

Very often I am asked how much longer will these appliance last. There are so many variables that I can’t accurately answer the question. Though NAHB (National Association of Home Builders) offers some guidelines and since I see so many different aged units I can often give some guidance.
“Appliances

The life expectancy of a typical appliance depends to a great extent on the use it receives. Moreover, appliances are often replaced long before they are worn out because changes in styling, technology and consumer preferences make newer products more desirable. Of the major appliances in a home, gas ranges have the longest life expectancy: 15 years. Dryers and refrigerators last about 13 years. Some of the appliances with the shortest lifespan are: compactors (6 years), dishwashers (9 years) and microwave ovens (9 years)” and water heaters 5-15 years

I frequently recommend at least a quality pleated air filter over the cheapie blue or green see through type as shown below.

MERV ratings range from 1 – 16 and measurements are in microns. Some of the common particles related to MERV ratings are pet dander, insecticide dust, smog, dust, viruses, wood, tobacco smoke, spores, bacteria and pollen.
Some of the most common filters found in residential use only have a merv rating of 1 to 4. I call these “bird stoppers” These are typically disposable panel type filters and do not do a good job of filtering the air because they will not stop particles smaller than 10 microns.

There are some manufacturers that have specific recommendations for their equipment, which should be followed for warranty purposes.