How is this possible?
- Change your furnace filter or air conditioner filter too often and it’s like throwing money away.
- Wait too long between filter changes and equipment operating efficiency begins to decline and operating costs increase.
An air filter change indicator is designed to react to pressure drop across your air filter. As the filter becomes dirty the gauge reacts to the change in pressure drop and when the indicator needle points at the red “Change Filter” area of the gauge it is time to replace the filter. No more guessing.
How often should an air filter be changed?
Manufacturers often differ in their recommended filter change frequency. Some say every month, some say every other month and others recommend every three months and that’s only for 1 and 2 inch filters. If you use 4, 5 or 6 inch pleated air filters, recommendations vary from 3 months to a year.
Filters are expensive, especially the efficient varieties and the 4, 5 and 6 inch types so you don’t want to be changing them more often than absolutely necessary. It’s very difficult to know when a filter has reached the point where it is better to change it than to leave it in the system.
Manufacturers can’t really tell you because they can’t possibly know the conditions in every home, not to mention every geographic area. There are just too many variables to consider. If you follow a set schedule for your filter changes you are probably not getting the best value from your filters.
Leaving an air filter in your heating or air conditioning system too long costs money.
If you don’t replace you air filter often enough it begins to impact air flow and causes equipment operating efficiency to decline. A decrease in operating efficiency translates to higher operating costs. This means higher energy bills and nobody wants that either.
If left in a system long enough, a dirty filter will cause air flow restriction and can cause evaporator coils to ice up, heat exchangers to crack, longer run times and other equipment troubles that may require a service technician.
So what’s the solution?
Installing an air filter change indicator eliminates guessing from filter change schedules. You won’t be throwing money away by changing filters too often and you won’t be wasting money and dealing with the potential problems associated with leaving an air filter in too long.
p.s. You can’t rely on thermostat timers for this service either. Timers don’t react to the deteriorating conditions of your air filter. They only react based on hours of operation to remind you that you should change your filter. For a reliable indicator you should use an air filter change indicator.