How to Check Your Heater Before Winter

November 17, 2023

Close,Up,Of,Portable,Electric,Halogen,Heater,On,Black,BackgroundAs winter approaches, it’s essential to ensure that your heater is in good working condition to keep your living space warm and comfortable. Regular maintenance and inspection can help prevent potential breakdowns that may leave you shivering in the cold. In this blog post, we will guide you through a step-by-step process to check your heater before winter, ensuring it’s ready to provide reliable and efficient heating throughout the season.

I. Assess Your Heating System’s Age and Efficiency:

The first step in checking your heater is to evaluate its age and efficiency. Older heating systems may be less energy-efficient and more prone to mechanical issues. Consider the following points:

Determine the Age of Your Heater:

Consult your heating system’s manufacturer documentation or contact a professional technician to determine the age of your heater. If it’s older than 15-20 years, it may be nearing the end of its lifespan, and you should consider replacing it with a newer, more efficient model.

Evaluate Energy Efficiency:

Check if your heating system has an Energy Star rating or SEER (Seasonal Energy Efficiency Ratio) rating. If your system has a low rating, it may be costing you more in energy bills and not adequately heating your space. In such cases, it might be worthwhile to upgrade to a more energy-efficient model.

II. Clean or Replace Air Filters:

Dirty or clogged air filters can obstruct airflow, reducing the efficiency of your heater. Cleaning or replacing the filters is a simple yet vital maintenance task to ensure effective heating. Follow these steps:

Locate the Air Filters:

Find the air filters, usually housed near the air intake or blower motor. Refer to your heater’s user manual if you’re unsure.

Remove the Filters:

Depending on the type of filter, carefully remove it from its slot. If you have reusable filters, clean them as per the manufacturer’s instructions.

Clean or Replace Filters:

Use a vacuum or water to clean disposable filters thoroughly. For reusable filters, soak them in a mild detergent solution, rinse, and allow them to dry completely before reinserting them.

III. Check and Clean Ventilation:

Obstructed vents can limit the proper circulation of warm air, affecting the heating efficiency of your system. Ensure all vents are clean and unblocked:

Inspect Vent Covers:

Check each vent cover for dust, debris, or other obstructions. Use a vacuum, broom, or damp cloth to remove any dirt or build-up.

Clear Air Registers and Ducts:

Ensure that air registers and ducts are clear of furniture, carpets, or any other objects that might obstruct airflow. Vacuum the vents to remove any accumulated dust or dirt.

IV. Inspect and Test Thermostat:

The thermostat acts as the control center for your heating system. Proper calibration and operation are crucial for efficient heating. Follow these guidelines:

Check Thermostat’s Calibration:

Set your thermostat to a few degrees higher than the ambient room temperature. If your heater does not turn on or if the temperature readings do not match the actual room temperature, it might require calibration. Refer to your thermostat’s user manual or consult a professional technician.

Replace Batteries (if applicable):

Many thermostats rely on batteries for operation. Replace the batteries if they are low to avoid potential malfunctions during the winter season.

Test Heating Functionality:

Switch your thermostat to “heat” mode and set the desired temperature. Verify that your heater turns on, and the warm air begins to circulate within a few minutes. If you notice any irregularities or malfunctions, it’s advisable to have a professional HVAC technician inspect your unit.


By following these steps to check your heater before winter, you can ensure that your heating system is in optimal condition to keep you warm and cozy throughout the season. Regular maintenance and inspection can help prevent unexpected breakdowns, reduce energy consumption, and extend the lifespan of your heater. Remember, if you encounter any issues or suspect a problem, it’s best to consult a qualified technician for a thorough assessment and necessary repairs. Stay warm and comfortable during the winter months!

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