(318) 325-3250
5.0 from 1,412 Google reviews

Thermostats

Through years of experience with every brand, Gilley's has settled on the thermostats that are the most reliable and the most appropriate.

or call (318) 325-3250

Tier one

1 heat, 1 cool. Non-programmable.

Sometimes simple is best. The Tier I electronic thermostat is manual and non-programmable, easy to use, with a light-up display, for conventional systems.

  • A 4 square inch display
  • Blue backlight
  • A glow-in-the-dark light button
  • An easy-access battery compartment
  • Electric or gas configurable
  • Separate B and O terminals
  • Separate heating and cooling cycle rate adjustments
  • Room temperature calibration
  • A 5 minute compressor delay (selectable)
  • Battery or 24V power
  • A 5 year warranty

Tier two

Universal: up to 2 heat, 2 cool conventional; up to 3 heat, 2 cool heat pump. 5/1/1 programmable.

For customers who want more features, or who have two-stage systems. The Tier II is a performance series thermostat with automatic changeover, programmable for seven days, weekdays and weekends, or every day, or used without a program.

  • 5/1/1 programmable
  • Easy menu-driven programming
  • Wake, leave, return and sleep icons
  • A 6 square inch display
  • Blue backlight
  • A glow-in-the-dark light button
  • An easy-access battery compartment
  • Electric or gas configurable
  • Separate B and O terminals
  • Separate heating and cooling cycle rate adjustments
  • Room temperature calibration
  • A 5 minute compressor delay (selectable)
  • Battery or 24V power
  • A 5 year warranty

Tier three

Universal: up to 2 heat, 2 cool conventional; up to 3 heat, 2 cool heat pump. 5/1/1 programmable.

Touchscreen and web-enabled, so you can control it from the internet and from some smartphones. It watches the system constantly and alerts you to any problem.

  • Humidity control
  • Wireless thermostat and base
  • Touchscreen
  • Dual fuel balance points
  • Up to 4 indoor remotes
  • An outdoor remote
  • 7 day or 5/1/1 programmable
  • Auto changeover
  • Easy menu-driven programming
  • Wake, leave, return and sleep icons
  • A 13 square inch display
  • Blue backlight
  • A programmable fan
  • Electric or gas configurable
  • Separate heating and cooling cycle rate adjustments
  • Room temperature calibration
  • Keypad lockout
  • Heating and cooling set point limits
  • A 5 minute compressor delay (selectable)
  • A filter change indicator (selectable)
  • Color-coded terminal blocks
  • A universal sub-base
  • Mounts on a wall or junction box
  • Battery or 24V power
  • A 5 year warranty

What customers say

Google reviews, word for word. Read them all.

Sandy B.★★★★★March 2026

My thermostat went out & Justin can out and replaced it. I highly recommend them. We have a contract for maintenance with them, which means we don’t have to pay weekend or after cost & get 15% off of parts. We had just had our system cleaned. They do a great job.

Questions

Which thermostat is simplest?

Tier one: a manual, non-programmable thermostat with a light-up display.

Can I control a thermostat from my phone?

Tier three is web-enabled, so it can be controlled from the internet and some smartphones.

What warranty comes with them?

All three tiers list a 5 year warranty.

Talk to Gilley’s

Tell the assistant what is going on and it will pass your details to the team. Or call the office.

(318) 325-3250