Case Studies

THE PROBLEM: Two aging ductless mini-split systems needed repairs year after year and extensive cleaning to address buildup inside the indoor units. The customer wanted more dependable heating and cooling, an indoor air quality strategy, and a permanent solution for an uncomfortable third floor that relied on a window air conditioner.

THE SOLUTION: Both aging systems were replaced, and the original five-zone layout was expanded to six zones across two outdoor systems. A dedicated third-floor mini-split provided an alternative to the window unit, while six air scrubbers—one for each indoor unit—were added to support the customer’s indoor air quality goals. 

THE PROBLEM: An approximately 19-year-old Mitsubishi Electric mini-split serving a sunroom was still operating but had accumulated significant dirt and debris after years without professional cleaning or routine maintenance. The customer wanted to understand the equipment’s condition and decide whether cleaning or replacement made more sense.

THE SOLUTION: Professional cleaning was explored first, with a return visit scheduled to thoroughly clean the indoor unit. After considering the system’s age, condition, and available warranty options, the customer chose a new Mitsubishi Electric mini-split for a fresh start with sunroom comfort.

THE PROBLEM: An aging single-stage heat pump had required repairs almost every year over the past several years. The customer wanted to move beyond recurring service issues and invest in more dependable heating and cooling.

THE SOLUTION: Replace the existing equipment with a two-stage heat pump that can operate at a lower capacity during milder conditions and increase output when needed. The upgrade gave the customer a fresh start with equipment designed to better match the home’s changing comfort demands.

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.

THE PROBLEM: The customer’s existing 80% efficient boiler was still working, but the chimney it used for venting had begun to deteriorate. A costly chimney repair estimate prompted the customer to compare the complete cost of a conventional boiler replacement with a high-efficiency upgrade.

THE PROBLEM: A summer air-conditioning breakdown raised concerns about the homeowners’ aging heating and cooling system. An oversized furnace and concerns about airborne dust added to their reasons for planning a replacement before another seasonal emergency.

THE SOLUTION: A new Ruud furnace, indoor coil, and outdoor condenser replaced the aging equipment, with furnace sizing selected to better match the home’s heating needs. A Dynamic Air Quality Solutions whole-home air cleaner added enhanced particle filtration to address the family’s indoor-air-quality priorities.

THE PROBLEM: An aging R-22 air conditioner needed thousands of dollars in repairs, while uneven temperatures and humidity concerns affected comfort throughout the home. The homeowners wanted better cooling without replacing their three-year-old variable-speed furnace.

THE SOLUTION: A new Trane multi-stage air conditioner replaced the aging cooling equipment while keeping the newer furnace in place. The upgrade focused on steadier temperatures, improved humidity control, and quieter operation, with off-season pricing helping the homeowners plan ahead.

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.

THE PROBLEM: The customer’s nearly 20-year-old oil-heating system needed repairs estimated at almost $6,000. Rather than make a substantial investment in aging equipment, the customer wanted a long-term heating solution that would improve efficiency and simplify managing separate oil and propane deliveries.

THE SOLUTION: A cold-climate, 24 SEER heat pump paired with a Trane propane furnace replaced the aging oil system. The new dual-fuel configuration combines efficient electric heating and cooling with propane backup heat, allowing the home’s heating system, fireplace, and water heater to share one delivered fuel source.

THE PROBLEM: A customer’s aging gas-fired steam boiler was approaching the point where replacement made more sense than continued reliance on older equipment. The home needed a new boiler properly matched to its existing radiators, along with a replacement for its electric water heater.

THE SOLUTION: A radiator-by-radiator survey established the connected steam load before a new gas-fired steam boiler was selected and installed. The project replaced the aging boiler with new equipment and manufacturer-backed warranty coverage while converting domestic hot water from electric to gas.