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Lennox CB30U-46 Air Filter
It is suggested the your furnace filter is exchanged for a new one every 90 days or so as to maintain good airflow through the ducts. The actual size of the main system air filter choice that needs to be made but rather a requirement of your HVAC blower system. Lennox CB30U-46 filters exist in many different filtering levels, which all depends on your personal choice for how clean you want the air and air handler size requirements.
Some clues of a declining dust filter
- The system air filter looks brown and it would be a good idea to replace it now
- If you place a light source behind it, the light cannot shine on the opposite side of a clogged air filter
- It is greatly advised to switch out the air filter in your unit about every three months in order to keep the air free from too much dust
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If you are going to be buying or ordering any Lennox CB30U-46 replacement part, do your due diligence and cross-check the model number as well as make a visual comparison so that you are positive that the correct replacement air filter is the one being purchased. Installation of a new air filter is not difficult assuming you know what you are doing and have the proper tools to get it done.
Feel free to download your manual for help.
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