Single-Zone Heat Pump Installation in Harrison, NY: Year-Round Comfort for a New Home Addition

When a Harrison, NY homeowner completed a new addition to their home, they needed a reliable way to keep the space comfortable year-round, without connecting to the home’s existing HVAC system. They called Sustainable Heating & Cooling to design a solution featuring a single-zone heat pump in Harrison that offered flexibility, energy efficiency, and quiet comfort.

The Challenge: A New Addition Without Ductwork

Home additions often come with unique heating and cooling challenges. In this case, the main house already had a central HVAC system that was perfectly sized for the original space. Extending ductwork into the new addition wasn’t practical. It would have been costly, disruptive, and could have overloaded the existing equipment.

The homeowners needed a standalone heating and cooling solution that could provide comfort in all seasons, blend with the new space, and operate efficiently and quietly. A single-zone heat pump in Harrison was the perfect solution.

Our Solution: A Single-Zone Ductless Heat Pump

Our team installed a Trane/Mitsubishi single-zone ductless mini-split system to serve the new addition. This system provides both cooling in the summer and heating in the winter from one sleek, wall-mounted indoor unit paired with an outdoor condenser.

With advanced inverter technology, the system offers precise temperature control, whisper-quiet operation, and excellent energy efficiency. Because it runs independently of the home’s main HVAC system, it is ideal for any addition that lacks ductwork.

Quick, Clean, and Seamless Installation

Installation was fast and minimally invasive. The indoor air handler was mounted high on the wall, blending seamlessly into the room’s design. The outdoor condenser was positioned discreetly along the side of the home, connected by a small line set that carries refrigerant and power. No bulky ductwork was required.

Before finishing, our team performed a full vacuum and pressure test, verified electrical connections, and optimized airflow and temperature settings to ensure the single-zone heat pump in Harrison delivers perfect performance.

The Results: Quiet, Efficient Comfort Year-Round

The homeowners immediately noticed the difference. The new addition stays cozy in the winter, cool in the summer, and runs so quietly it’s barely noticeable. With independent temperature control, they can fine-tune comfort in the new space without affecting the rest of the house.

Thanks to the ductless heat pump’s efficiency, energy use is significantly reduced compared to traditional electric heating or portable solutions.

Why Harrison Homeowners Trust Sustainable Heating & Cooling

At Sustainable Heating & Cooling, we specialize in single-zone heat pumps, ductless mini-splits, and high-efficiency HVAC solutions across Harrison and Westchester County. Whether you are adding a new room, finishing a basement, or renovating a home office, a ductless system offers comfort, energy efficiency, and flexibility.

Our experienced team ensures every installation is done with precision, clean workmanship, and long-term reliability.

Ready to Install a Single-Zone Heat Pump in Harrison?

If you are planning a home addition or have a space that needs independent heating and cooling, a single-zone heat pump in Harrison could be the perfect solution.

Call Sustainable Heating & Cooling today to schedule your free estimate and learn how a ductless mini-split heat pump can make your Harrison home more comfortable and energy-efficient all year long.

Location: Harrison, NY