Customer Need

We were originally called out because the customer’s gas furnace would not shut off from the thermostat. After investigating the 40-year-old system, we found a lot of rust and recommended replacing the unit because of part availability and the overall condition. The system was installed in 1983 when the home was built. The customer decided to replace the gas furnace, and upgrade the air conditioner.


Rancho Penasquitos, San Diego County, California

Proposed Solution

We recommended a full system changeout with a new high-efficiency home HVAC system. We noticed major leaks in the Return, so we sealed it from the inside and added a 1″ filter rack for easy filter changeout. The customer’s previous condensate drain would drain directly on their sidewalk, so we ran an extension into a rock well on the side of the house.

Job Details

1500 sqft House, replace original equipment with new high-efficiency upflow Ameristar Furnace is located in the garage, and a 3-ton American Standard air conditioner.

Customer Comments

“The install team at Carini did a great job meeting all of my requests. They even sealed my intake free of charge and extended my drain line so I didn’t have to walk through a puddle every time I walked down the side of my house. Carini is a team of professionals and I will be using them for all of my future HVAC, Plumbing, and Electrical needs.” -R.M.

Item List

Ameristar A801X A801X060BM3TAB Gas Furnace

• 60,000 BTUs
• 80% AFUE
• 10-Year Parts Warranty
• 10-Year Labor Warranty
• 10-Year Heat Exchanger Warranty
• 1″ Filter Rack w/ 1″ Filter qty: 1
• Exhaust Flue Vent qty: 1
• Gas Flex w/ Shut Off Valve
• Seal Ducting & Grills for HERS
• Low voltage wiring
• Seal Return Cavity

American Standard Silver 16 Low Profile 4A7L6036A1000A  Air Conditioner

• 36,000 BTUs
• 16 SEER
• 10-Year Parts Warranty
• 10 Year Labor Warranty
• 10-Year Compressor Warranty

ADP 4XADUC1437/A Indoor Unit (Coil)

• 3/4″ Whip qty: 1
• Condenser Pad qty: 1
• Electrical Disconnect w/ Fuses
• High Voltage Electrical Circuit
• Condensate drains
• Refrigeration Linesets with 3/4″ Insulation
• Seal Ducting & Grills for HERS
• UV wrap to protect Linesets
• Rock well for Condensate
• Low voltage wiring

Job Photos

Replacement Unit - Home HVAC gas furnace replacement in San Diego County gas furnace replacement External Mini Split unit in San Diego County New Mini Split unit in San Diego County Home gas furnace replacement