THE PROBLEM: An approximately 18-year-old high-velocity HVAC system was ready for replacement. The customer wanted to explore ways to manage heating costs while reducing reliance on the home’s existing natural gas boiler.
Case Studies
Check Out ECI's Case Studies Below!
Find a case study based on home construction type
Oct 26, 2026, 10:30:00 AM by Lea D - 0 comments
High-Velocity HVAC Replacement: Adding a Heat Pump While Keeping the Boiler
Oct 9, 2026, 4:10:00 PM by Lea D - 0 comments
Proactive High-Velocity HVAC Replacement with Unico and Ruud: Better Third-Floor Comfort
THE PROBLEM: The customer’s aging high-velocity air-conditioning system still cooled the second and third floors, but its age raised concerns about an unexpected summer breakdown. The customer wanted to replace it proactively, improve third-floor heating control, and explore ways to reduce energy consumption and carbon emissions.
THE SOLUTION: A new Unico variable-speed air handler paired with a Ruud two-stage heat pump replaced the aging equipment. Two additional high-velocity supply feeds improved air distribution, while replacement steam radiator valves provided better third-floor heating control. Completing the installation during the fall allowed the customer to take advantage of off-season pricing before the next cooling season.
Sep 25, 2026, 12:04:48 PM by Lea D - 0 comments
High-Velocity Central Air for a Historic Early-1900s Home
THE PROBLEM: After more than 20 years in their early-1900s home, the homeowners were tired of installing, removing, and storing noisy window air conditioners every year. They wanted central air and more daylight through their windows, without extensive demolition or major changes to the home’s finished spaces.
THE SOLUTION: A high-velocity air-conditioning system was designed for the second and third floors. Its small, flexible supply ducts offered a way to bring central cooling to the homeowners’ priority spaces while working around the home’s existing structure.
Sep 10, 2026, 11:40:09 AM by Lea D - 0 comments
Bringing Modern Comfort to a 200-Year-Old Home with High-Velocity AC and Mitsubishi Electric Mini-Splits
THE PROBLEM: A historic home built in several stages had never had air-conditioning. Conventional ductwork would have required significant alterations, while a newer addition lacked the attic space needed to connect with the rest of the home.
THE SOLUTION: A customized system combined high-velocity air-conditioning in the original home with a two-zone Mitsubishi Electric mini-split system in the newer addition. The design provided efficient, targeted cooling while protecting the home’s historic character.
Jul 31, 2026, 1:56:23 PM by Lea D - 0 comments
Historic Philadelphia Home Heating & Cooling with a Unico High-Velocity HVAC System
PROBLEM: Eliza relied on window air conditioning units to stay comfortable during the summer months. However, they were inefficient, noisy, and unable to provide consistent, whole-home comfort.
SOLUTION: Having worked with ECI in the past, Eliza reached out to our owner, Ron, whom she had trusted on previous projects. Ron sent our project manager Matt to assess her home and finalize the heating and cooling system she had always wanted. Today, Eliza enjoys a quiet, energy-efficient system that keeps the areas she uses most at the perfect temperature—providing reliable, year-round comfort that her old window units never could.
Aug 6, 2025, 2:15:00 PM by Logan Donahue - 0 comments
Replacing a 20-Year-Old Unico System in a Historic Home in Haddonfield, NJ
PROBLEM: Robert’s 93-year-old historic home relied on a Unico high-velocity system that had kept it cool for over 20 years. When the system finally failed on a hot summer day, he needed an expert who understood older homes and unique HVAC solutions.
Dec 27, 2024, 2:15:58 PM by Logan Donahue - 1 comment
Cooling a University City Twin in Philadelphia with Unico High Velocity
PROBLEM: These homeowners were looking for a better solution for their home than lugging window air conditioners up to the third floor of their University City home. They wanted a whole-home solution that would keep them cool and run more efficiently than window units.
SOLUTION: ECI Comfort installed a Unico high velocity system that will provide the homeowners with quiet air conditioning (and heating) comfort throughout their home, and will even be able to remove 30 percent more humidity out of the air -- a blessing to anyone living through Philadelphia summers!
Dec 27, 2024, 1:03:02 PM by Logan Donahue - 0 comments
Queen Village Air Conditioning Upgrade with Unico High Velocity
PROBLEM: The 20-year-old air conditioner in a Queen Village rowhome needed replacement. Our homeowners wanted to upgrade their high velocity system.
SOLUTION: ECI Comfort installed a Unico high velocity air conditioning system. This required careful work, including coordination with the electric company, to get the new unit onto a second-story platform.
Sep 3, 2024, 8:00:00 AM by Lauren Mangano - 0 comments
High-Velocity AC System in Glenside, PA: Efficient Cooling Without Bulky Ductwork
PROBLEM: A property manager in Glenside, Pa., was in the process of rehabilitating an older home. One of his primary goals was to add air conditioning, but the absence of ductwork presented a significant challenge. Installing traditional ductwork would have been costly and would have compromised the aesthetics of the home.
Aug 19, 2024, 12:42:00 PM by Logan Donahue - 0 comments
Retrofitting a Historic Chestnut Hill Home with Unico High-Velocity AC
PROBLEM: Our homeowner, Alex, recently purchased this charming new Chestnut Hill home. It needed some updating, which was to be done while maintaining its historic value. But the biggest issue in an older home like this is the lack of air conditioning -- something Alex and his family were not going to live without.
SOLUTION: ECI Comfort installed a Unico High-Velocity system with a Bosch Heat Pump Inverter and Green Series Air Handler. This system will provide even and comfortable temperatures throughout each room, drastically reduce humidity, and create the perfect comfort solution while minimizing any changes to the interior!



