Heat pumps are now outselling furnaces throughout the United States. It’s even more so the case in colder states like Maine due to the big energy savings they can provide. That said, The Pine Tree State experiences long, harsh winters that can be hard on a heat pump, especially when considering that interior areas of the state can experience as many as 60 subzero days annually. Let’s explore how you can ensure your system is as efficient as possible during those freezing weeks.
Schedule a Fall Heating Tune-Up
Every year, schedule heat pump maintenance early in the fall before you need to heat your home. While your heat pump is an all-in-one HVAC solution, it still needs two tune-ups a year. Most heat pump warranties require it as a condition of their continued coverage. It will also improve system efficiency, prevent common breakdowns and extend the life of your equipment.
A tune-up encompasses a multipoint inspection and a comprehensive cleaning. That includes cleaning the indoor evaporator coil and outdoor condenser coil. If you don’t clean these regularly, the grime accumulation serves as an insulator. That interferes with the heat exchange and may cause your electric bill to rise. This effect can be particularly dramatic during subzero temperatures due to the great deal of strain they put on the system.
Target a Modest Temperature and Dress Accordingly
The higher you set your temperature, the greater the strain you put on your heat pump. The U.S. Department of Energy (DOE) recommends 68˚F as an optimal balance between comfort and efficiency. You can set the thermostat higher, of course. Just be mindful that each degree can affect your electricity usage by 1% to 3%. Dress appropriately for the indoor temperature you set. You can then remove or add layers throughout the day and night as needed.
Consider Auxiliary Heating
Consider augmenting the heat your heat pump provides. A temporary solution is to use a safe space heater. Ceramic models, for instance, use electricity and present a low fire risk. For long-term use, you can consider upgrading to a dual-fuel system with an auxiliary furnace.
Benefit From a Programmable or Smart Thermostat
Manual adjustments during winter tend to undermine energy efficiency. That’s because an HVAC system uses more energy to achieve than maintain a temperature. Through automatic scheduling, you can avoid large, energy-wasteful temperature transitions. You can also benefit from much lower energy use while you’re sleeping or away at work. Smart thermostats often provide additional ways to improve heat-pump efficiency, including energy monitoring and reporting.
Use an Optimal HVAC Filter and Check it Regularly
The industry measures HVAC filter effectiveness using the minimum efficiency reporting value (MERV) rating. The higher the rating, the better the air filtration, but also the greater the air resistance is. If air resistance is too high, it will reduce your heat pump’s efficiency. Choose a premium pleated filter with a MERV rating appropriate for your system. Check it at least once a week, and swap it out as needed. Running your HVAC equipment with a clogged filter will increase air resistance as well. You’ll know it’s time for a change when you can see dust on the outer surface or hear a whistling sound.
Keep the Outdoor Unit Clear of Snow, Ice and Debris
A heat pump has an outdoor unit that houses the condenser coil, compressor, compressor fan and other equipment. The system relies on ample airflow to acquire heat for the home. That’s why you should never cover the outdoor condenser fan. You should also check the unit once a week for a buildup of snow, ice, leaves and other debris. If there are blockages, clear them yourself, or call a professional to restore proper airflow.
Maintain Appropriate Relative Humidity Levels
Health experts recommend a relative humidity (RH) between 30% and 50%. That can be difficult to achieve during subzero temperatures when the air is extremely dry. Consider installing a whole-house humidifier that will add moisture to the air to maintain your target RH. That will improve your comfort and provide health benefits. Another advantage is that it will help you feel warmer at a lower temperature.
Efficient Heat Pump Solutions Throughout Cumberland County
Dog House is your local, trusted HVAC company located in Brunswick, ME. Our team provides installation, maintenance and repair services for heat pumps. We also install and service whole-home humidification systems.
To schedule a heating tune-up or an in-person installation consultation, call Dog House today, or contact us online.
