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Heat Controller VMH12SC-1 Air Filter
It is recommended that the filter is changed every 90 days or so for optimal air quality throughout the home. Filters exist in many different filtering types depending on your air quality needs and the specific size of filter you need for your system. The actual size of the filter is not really a choice you make but rather a requirement of the manufacturer of your system.
Red flags your Heat Controller air filter needs replacing ASAP
- The system filter looks dirty and probably should be replaced now
- Many pros have recommended to replace your air filter every three months to keep the air inside clean and free of harmful dust
- Sunlight will not shine through a dirty filter
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