Custom HVAC Solution for Scripps Ranch Homeowner – A Case Study

A homeowner in Scripps Ranch, San Diego reached out to Carini Home Services looking for a high-efficiency HVAC solution to replace their aging system. They wanted to improve energy efficiency while also adding heating and cooling to their upstairs area, which currently lacked ductwork. Our expert team assessed their home and recommended a top-tier high-efficiency central HVAC system to upgrade their existing setup. To address the upstairs comfort issues without major ductwork modifications, we installed a ductless mini-split system—providing zoned temperature control, improved energy savings, and year-round comfort. Now, their entire home stays perfectly climate-controlled, and they enjoy lower energy bills with a modern, efficient solution. If you’re looking for a customized HVAC upgrade in Scripps Ranch or anywhere in San Diego, contact Carini Home Services today!

LOCATION: Scripps Ranch, San Diego County

CUSTOMER PROBLEM: The customer wants a new high-efficiency system and would like to add heating and cooling to the upstairs which has no ductwork.

PROPOSED SOLUTION: Change out the Furnace, and AC and add a Multi-Zone heat pump mini split ductless system for the upstairs

CUSTOMER TESTIMONIAL: “The team at Carini has been nothing but helpful, from the people answering the phone, to the design specialist that came out, and especially the install crew. I was shopping around with a few companies and Carini wasn’t the cheapest, but they were the most professional. Our old system was inefficient and made a lot of noise. It needed to be changed out for a while, but once I heard of the California rebate, I knew I couldn’t wait. Overall I am very happy with my new system, the Carini team, and the peace of mind they offer with their 12 year warranty” – J.P.

ITEM LIST:

American Standard – Mitsubishi Electric

NAXSST24A112A (MUZ-GL) Heat Pump

• 24,000 BTUs Cooling
• 27,600 BTUs Heating
• 20.5 SEER, 12.5 EER, 10 HSPF
• 12 Year Parts Warranty
• 12 Year Labor Warranty
• 12 Year Compressor Warranty

Indoor Unit Selections

Living Room

• Wall-Mounted
• NAXWST24A112A (MSZ-GL)
• 23,560 BTUs Cooling
• 27,542 BTUs Heating

American Standard – Mitsubishi Electric

NTXMMX24A132AB (MXZ NA2) Heat Pump

• 24,000 BTUs Cooling
• 25,000 BTUs Heating
• 20 SEER, 13.6 EER, 9.8 HSPF
• 12 Year Parts Warranty
• 12 Year Labor Warranty
• 12 Year Compressor Warranty

Indoor Unit Selections

Family Room

• Wall-Mounted
• MSZ-EF18NAB White (MSZ-EF)
• 14,153 BTUs Cooling
• 15,867 BTUs Heating

Office

• Wall-Mounted
• MSZ-EF09NAB White (MSZ-EF)
• 7,500 BTUs Cooling
• 8,100 BTUs Heating

American Standard Platinum 18

4A6V8036A1000B Heat Pump

• 36,000 BTUs
• 18 SEER, 12.2 EER, 9.6 HSPF
• 10 Year Parts Warranty
• 10 Year* Labor Warranty
• 12 Year Compressor Warranty