Filters need to be replaced on a regular basis in order to maintain the life of your heater. If you do not replace the filter, then your heater will need to expend more energy to push the heated air to the rest of the house, putting more stress on it and shortening the time that it functions with peak efficiency. In order to make sure that your heater lasts as long as possible, you need to make sure that you replace your filter regularly. You need to replace your filter whenever more than a third of it appears discolored, because this means that more than a third of the filter is clogged and will be hindering air flow. This could even cause your heater to overheat and shut down entirely. Check out these filters and their replacement times, and decide which is right for you.

1. Disposable Filter 

Depending on your heater, you will need to replace your filter at the beginning and the end of every fall and winter, as well as once or twice during the season. Some heaters will need to have their filters replaced on a monthly basis. Although these are the cheapest types of filters, they require the most maintenance work on the part of the homeowner. 

2. Glass Fiber Filter

A glass fiber filter is designed to be more durable and be able to hold more dirt and dust particles without causing the heater to overheat and subsequently shut down. They cost more than a disposable filter, but only have to be changed once or twice a year, rather than several times a season. This will allow you to essentially install and forget about your glass fiber filter.

3. Standard Pleated Filter

Standard pleated filters are similar to glass fiber filters in that they need to be replaced once or twice a year because of the large amount of dust and dirt that they are able to take in without causing the heater to overheat.

4. Electrostatic Fiber Filter

Finally, an electrostatic filter will be able to remove the most amount of dirt and dust and will only need to be changed once a year. This is the most expensive type of filter, but it tends to be the most effective.

For more information, talk to a company that specializes in heater repair. They will be able to recommend the best type of filter and replacement schedule for your heater.