09/10/2026
Here’s a closer look at one of our complete high-efficiency HVAC system replacements and some of the installation practices we encourage homeowners to consider when comparing one estimate to another.
On this project, we removed an older furnace, indoor evaporator coil, and conventional outdoor air conditioner and installed a Goodman 97% modulating variable-speed gas furnace, Goodman EEV evaporator coil, and Amana S 16 SEER2 side-discharge inverter air conditioner. The Amana S uses the same underlying Daikin-family side-discharge inverter platform as the Goodman SD systems we more commonly install.
In this 22-minute highlights version, you’ll see us remove the old equipment, complete custom sheet-metal work, set and level the new furnace and evaporator coil, flush and prepare the existing refrigerant line set, set the new outdoor unit, flow nitrogen while brazing, pressure test the refrigerant piping, pull a deep vacuum, and complete startup and final testing.
We also explain some of the comfort advantages of modulating furnaces and inverter air conditioners. Instead of always operating at full output like basic single-stage equipment, these systems can adjust their capacity as the home needs it, helping provide longer, gentler cycles, quieter operation, and more consistent temperatures throughout the home.
After the system had been running for a couple of months, the homeowner told us he was especially impressed with how much quieter the new equipment was and how much more even and comfortable the indoor temperature stayed compared with the old system.
Manufacturer warranty coverage includes applicable registration requirements:
• Goodman furnace: 10-year parts, 10-year one-time unit replacement for qualifying failures, and lifetime heat exchanger coverage
• Goodman indoor coil: 10-year parts
• Amana S outdoor unit: 10-year parts and 10-year one-time unit replacement for qualifying failures
• Daikin One thermostat: 12-year parts coverage
If you’re comparing HVAC replacement estimates, don’t just compare the final price. Look at the equipment being installed, how it’s sized and matched, and the installation and commissioning practices included with the job.
Want to see the complete installation from start to finish? Watch the full 1-hour-15-minute version on our YouTube channel:
https://youtu.be/l_19eutztMk?is=Ed9DQBIgjbWfLzvM
If you’d rather see the quick overview, we also have a 2-minute-59-second version here on our page.
Saint Tony’s Heating & Cooling, LLC
Faith • Family • Local Care
208-995-6891
SaintTonysHeatingandCooling.com
Serving Meridian, Boise, Eagle, Star, Nampa, Caldwell, Kuna, and surrounding Treasure Valley communities in Idaho.