Furnaces with ECM
What is an Electronically Commutated Motor (ECM)?
ECM is a brushless DC motor with all of its speed and torque controls built in. This allows the motor to adjust its speed to ensure the optimal airflow at all times. In addition, ECMs are considerably quieter and less expensive to operate than conventional furnace fans.
What are the benefits of an ECM in a forced air furnace or heat pump air handler?
- Lower annual operating costs (25–75% per year) based on usage
- You save energy every time your HVAC system is operating (every unit of energy (kWh) saved is one less you have to pay for)
- As little as 80 watts of power required for operation—that's less than a standard electric light bulb
- Reduced temperature fluctuation
- Quieter running system
- Easier to maintain an even temperature throughout the home
- Increased comfort
- Lower drying effect of indoor air during the winter heating season
- Reduced stale air and improved air quality
Four Ways You Can Save
- If your current furnace or heat pump is over 10 years old and needs to be replaced, ask a participating contractor about installing a new Forced Air Furnace with integrated variable speed ECM and qualify for a $200 rebate.
- If your current furnace or heat pump is less than 10 years old, it may be the perfect time to replace the standard, ineffective PSC motor with a high efficiency ECM Replacement Fan Motor. Simply contact an ECM replacement motor participating contractor and tell him or her you want an "ECM Inside."
- Request an "ECM Inside" when working with a contractor on a heat pump installation and check out the GSHP Combo Rebate with ECM inside.
- Install an ECM Circulator to save energy and money in hydronic and radiant heating systems and take advantage of Minnesota Power's $200 ECM Circulator (pump) Rebate.
What is an ECM Circulator?
If you use a boiler to heat your home, you most likely have circulators (pumps) to distribute the water. When choosing a circulator, look for one that offers ECM (Electronically Commutated Motor) technology. Circulators used for hydronic and radiant heating systems continue to become more energy efficient thanks to ECM technology. The intelligent speed control these circulators provide can drastically reduce energy usage when compared to the conventional, static speed technology.
When in operation, conventional circulator pumps operate at constant output, regardless of the system’s demand. Not only does this use more electricity than required, it can have negative effects on boiler performance. ECM Circulator Pumps adjust the gallon per minute (GPM) flow rates to meet demand, saving electricity and improving overall system efficiency.
Minnesota Power offers many different ECM rebate options. Find the one that is right for you.