• Residential Products
  • Air Conditioners
    • TZAA 13 SEER
    • TZAA 14 SEER
    • TZAB 13 SEER
    • TZAL 13 SEER - 410
    • TZAL 14 SEER - 410
  • Heat Pumps
    • TZPA 13 SEER
    • TZPL 13 SEER - 410
    • TZPL 14.5 SEER - 410
  • Gas Furnaces
    • TZ81DN - 80% Downflow
    • TZ81UH - 80% Upflow / Horizontal
    • TZ91DH - 90% Downflow / Horizontal
    • TZ91UP - 90% Upflow
    • TZ92DH - 95% Downflow
    • TZ92UP - 95% Upflow
  • Air Handlers
  • Coils
    • TF Series
    • TZ Series
  • Oil Furnaces
    • TZOUP - Upflow
    • TZODH - Downflow / Horizontal
  • Packaged Air Conditioners
    • TZGE 13 SEER
    • TZGE 13/14 SEER - 410
    • TZAH 13 SEER
    • TZAH 13 SEER - - 410
    • TZAC 13 SEER
    • TZAC 13 SEER – 410
  • Packaged Heat Pumps
    • TZHH 13 SEER
    • TZHH 13 SEER - 410
    • TZHC 13 SEER
    • TZHC 13/14 SEER - 410
• Commercial Products
  • Air Conditioners
    • TZAA- 7.5 TON
    • TZAA- 10 TON
    • TZAL- 6.5 & 7.5 TON
    • TZAL- 10 - 20 TON
    • TZAL 3 PHASE
  • Heat Pumps
    • TZPL 90, 120 SERIES R-410A
  • Air Handlers
    • TZHGL 90, 120, 180 & 240 SERIES
    • TZHGM 90, 120 SERIES
  • Packaged Air Conditioners
    • TZCAC-3 13 SEER
    • TZCAC 6 - 12.5 TON
    • TZCAC 15 - 25 TON
  • Packaged Gas Electric
    • TZCGE-3 13 SEER
    • TZCGE - 6 - 12.5 TON
    • TZCGE - 15 - 25 TON
    • TZGE-3**JA - 2 - 5 TON
    • TZGE-3**JL / TZGE-4**JL
  • Packaged Heat Pump
    • TZCHC
    • TZCHC-3 13 SEER / 11 EER
• Energy Savings
• Glossary
• Contact Us
• Warranty
  Registration

GAS FURNACES

ThermalZone offers a complete range of Gas Furnaces for a wide variety of residential applications.

For details on specific models, please click on the links below:

• TZ81DN - 80% Downflow
• TZ81UH - 80% Upflow/Horizontal
• TZ91DH - 90% Downflow/Horizontal
• TZ91UP - 90% Upflow
• TZ92DH - 95% Downflow
• TZ92UP - 95% Upflow

Additional Resources
Gas Furnace Terminology