Historically, most homeowners in Connecticut have used window units for air conditioning. While they’re simple to install and only cost a few hundred dollars, window air conditioning units are clunky and inefficient. You have to install them every summer, remove them in the fall, and they cause expensive electricity bills.
Ductless mini-split heat pumps are a better option. They’re installed once, are more energy efficient, and provide both heating and cooling. In 2026, Energize Connecticut℠ is offering sizable rebates for heat pump installations. With this assistance, your installation could be very affordable, so there’s never been a better time to upgrade.
Air Conditioner vs. Heat Pump: How Does Energy Efficiency Compare?
In general, mini-splits have a higher energy efficiency rating than window AC units. In a single room, you might not notice dramatic differences in electricity bills if you use a mini-split instead of a window AC. However, when you need to cool the entire home, the difference in energy efficiency and utility bills becomes very apparent.
Mini-Split Heat Pumps Provide Year-Round Use
Air conditioners are useless in the winter and they have to be awkwardly removed from the window and stored away every fall. Heat pumps, on the other hand, can be used all year round for both heating and cooling. Compared to traditional heating systems, heat pumps are significantly more efficient. Here are some stats:
- Using a heat pump instead of an electric resistance furnace or baseboard heating can save up to 75% in energy costs.
- Duct leaks in forced air heating systems can account for up to 30% of energy consumption. Ductless mini-splits don’t have this problem because there’s no ductwork. Refrigerant lines deliver cooling directly to the spaces where the air handler is installed.
- Older heating systems have an Annual Fuel Utilization Efficiency (AFUE) of 56% to 70%. Electric systems, like heat pumps, have an AFUE between 95% and 100%.
The dual heating/cooling functionality makes ductless mini-splits a very practical decision for your home. You will no longer have to install and remove window units every year, and you can reduce your heating costs in the winter. If you replace fossil fuel heating appliances, you also make your home safer and healthier.
Heat Pump Mini-Splits Can Provide More Comprehensive Cooling
Window AC units must be mounted to a window on the outskirts of a room. This limits how much they can cool a space. In large homes, many people need to purchase a window unit for each room, which can get expensive. Plus, you have to remove them from the window every single year, which isn’t exactly easy.
Heat pump systems are a permanent, fixed installation. The main heat pump is installed outside, and refrigerant lines are connected to small indoor air handlers mounted on the walls in your home. The air handlers can be mounted in more strategic, central locations, such as the middle of an open-concept living room. This allows it to provide more cooling throughout the home than a window AC could provide. Once installed, they stay there, no removal required.
Air Conditioner vs Heat Pump: Rebates and Incentives
One of the main advantages of mini-splits over window AC units is that they are eligible for large rebates and incentives. When you purchase a window unit for your home, you have to pay full price. This isn’t the case with a heat pump.
You can receive significant savings on your installation because of Energize CT rebates. In many cases, income-eligible households can even receive a mini-split at no cost. Here are the details:
| Energize CT Rebates/Incentives | |
| Heat Pump HVAC | $250-$500 per ton |
| Heat Pump HVAC (Income-Eligible) | Up to 100% Off |
Start with a Home Energy Solutions℠ Assessment
To qualify for Energize CT incentives, the first step you need to take is a Home Energy Solutions assessment from New England Smart Energy Group. During this visit, our energy efficiency experts analyze your home’s performance and check for air leakage, poor insulation, and other weaknesses. With this information, you’ll receive a clear plan of action for your new mini-split. The service is available for a low copay or for no cost through the Home Energy Solutions Income-Eligible assessment.
As an authorized contractor for Energize CT, you can trust our BPI-certified experts to provide a comprehensive assessment and a top-of-the-line mini-split system. We have heat pump installers near you with over 15 years of experience, and they are dedicated to helping you make your home more energy efficient and comfortable this summer.
