Winter and AC might not seem like they go together, but running the AC during colder months does have its benefits. Still, the action is not without risks to your HVAC system. Here, we discuss whether it’s ok to run your air conditioner in winter, reviewing the benefits, potential risks, and alternatives.
Running the AC in Winter Can Be Helpful
When it’s cold outside, the last thing on many people’s minds is starting up the AC, but this does actually have benefits. Specifically, air conditioning can reduce indoor humidity all year long.
Humidity levels can rise indoors during winter due to increased moisture from showering, cooking, and using heaters. Plus, when all the doors and windows remain shut to keep out the cold, all the humidity remains inside.
Air conditioning can reduce this excess moisture, preventing issues like mold growth. Additionally, via the fan mode, your AC can circulate indoor air, maintaining a balanced temperature throughout rooms and ventilating spaces that are airtight during winter.
Running the AC in Winter Has Risks
Running the AC in winter, however, comes with risks. Here are a few to consider:
- Potential damage to the compressor
- Increased energy consumption
- Reduced efficiency in moisture removal
- Risk of frozen coils
The most significant concern lies in potential compressor damage. Air conditioners are simply not designed to operate in cold weather consistently. After all, their main purpose is to cool down hot environments, so it makes sense that manufacturers don’t design them for cold-weather use. Therefore, running an AC when temperatures dip too low can impose undue stress on the compressor, ultimately leading to mechanical failures.
Additionally, AC uses a lot of energy. Paired with the heating that you will inevitably be using in winter as well, the extra energy usage can drive up your utility costs. This is hard on the environment and your wallet.
Furthermore, air conditioners are not as effective in cooler climates at removing moisture, which can lead to worse performance than in warmer conditions.
Lastly, running an AC in low temperatures can result in frozen coils, which can cause system malfunctions and hefty repair bills.
Alternatives to Running Your AC in Winter
Instead of directly relying on your AC unit, consider several alternatives that might prove more efficient and safer for controlling your home’s humidity and ventilation. For example, a dehumidifier can handle excess indoor humidity perfectly, and it is designed to do so year-round.
Additionally, open your windows occasionally. This can air out your home with crisp winter air and reduce stuffiness. As long as you don’t mind a bit of cold every once in a while, you’ll be fine.
While it’s ok to run your air conditioner in winter, it’s not the most efficient or economical way to dehumidify and ventilate your home. Instead, rely on a dedicated dehumidifier and brief interludes with the windows open.
Recommended Readings: Roof Maintenance Tips for Winter
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