Changing Your Furnace Air Filter
If you live in a home with furnace heat that you use regularly, or are getting set to use your heater throughout the winter, then of your major home maintenance priorities is to make sure that your heater’s filters are changed regularly. There is no reason to worry however; changing your furnace’s filter is a quick and simple task that you can perform by yourself.
The guidelines state that a filter should be changed a minimum of once per month. This is only a guideline though, you’re can change them more frequently if you wish but leaving them any longer is risky. When the time comes to change your filter, check through your instructions to familiarise yourself with the method. I’ve outlined a simple guide.
There are several steps to take to clean your furnace filter.
Switch off the gas or power supply. This is a critical task that you must carry out to ensure your safety. Locate and open the furnace door. For guidance on this, your service manual will give full instructions.
Your filter is not the only place where dirt collects however, especially if your filter is extremely clogged. Be sure to check for other accumulation in the blower itself, and in the venting system immediately surrounding your heater unit. Any obstruction of the furnace airway can cause not only inefficiency, but is also a major fire hazard.
Once you’ve assessed whether the filter needs replacing or not you should check within the blower and venting system. Any obstructions should be removed to prevent fire risk and improve efficiency. Once you’ve ascertained whether to replace the filter or not it’s time to consult the service manual to ensure the one you replace it with is the exact same one. Furnace air filters generally don’t interchange between models so it is vitally important to make sure the correct one is reinstalled. Washable filters can be hosed down in the garden then reinserted.
After purchase, simple replace the new filter into your furnace system in the exact same way that the old one came out. This is very important, as the filtration is unidirectional, meaning that the filter must be inserted so that the airflow is directed through it in the proper direction. Do not put your filter in backwards. Most filters are fiberglass, with one side that is slightly oily. This side usually faces the blower, and the other side collects the filtered material for disposal. If the texture (and of course your manual’s description) does not give you an indication of the correct installation direction, then you might simple look at the filter itself. Most models will have printed arrows on them to show you which direction you should insert your filter.
Once you’ve put the filter back inside, close the door and secure it in position. Only once you’ve closed the door is it safe to turn the gas supply or electricity back on. Congratulations, you’ve just learned how to clean your first filter.
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