Thermostats
thermostats — pre-owned
Browse 11,970 thermostats — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

5YR Warranty~ $50 CORE REFUND - GRADE B ~ Lennox 103445-04 10F81 Refurbished
Wall bracket not included. You don’t need to replace your bracket when swapping thermostats. Grade B units are fully functional but may have slight yellowing or an off-white bezel due to sun exposure.

Lennox Icomfort Wi-Fi Thermostat x 3 units (506921-01)
The Lennox iComfort Wi-Fi Thermostat is a programmable thermostat with 7-day programming capabilities. It is designed for wall mounting and features an app control interface for easy operation. The thermostat is compatible with LENNOX systems and has a sleek rectangular shape. A 4-wire wire configuration, and operates on a low voltage power source. The Lennox iComfort Wi-Fi Thermostat is a reliable and efficient choice for maintaining optimal indoor temperatures. Selling all 3 with understanding 2 of 3 work well. These are no longer being manufactured.

INNCOM Digital Thermostat Model E4-7
The INNCOM Digital Thermostat Model E4-7 is a white digital thermostat with a sleek design and easy-to-read digital display. It operates on 24 volts and is designed by INNCOM in collaboration with HONEYWELL. This model offers precise temperature control and energy efficiency for a comfortable and convenient home or office environment.

Carrier Infinity SYSTXCCUID01-V 24V Programmable Digital Thermostat

Google Nest Learning Thermostat 4th Gen Polished Silver w/ Wall Base Mount USED
✅ Nest Learning Thermostat (4th Gen) Polished Silver. ✅ Replacing an existing Nest. 🔥 Smart learning that adapts to your schedule automatically. ✅ Wall Base / Mount Plate. ❌ Trim plate. Why You’ll Love It.

Honeywell T6 Pro Series Z-Wave Thermostat Programmable TH6320ZW2003 Perfect Cond
Honeywell T6 Pro Programmable Thermostat TH6320ZW2003 In Good Condition, All Tested on C-wire and battery.

Genuine Pro1 T701 Digital Non Programmable Thermostat Blue Screen Working Tested
The thermostat has a sleek square shape, is wall-mounted, and includes a display base for easy viewing.
You save $1.23

Google Nest Learning Thermostat 4th Gen–Used–Mirror Scratches–Wall Base
✅ Nest Learning Thermostat (4th Gen). ✅ Replacing an existing Nest. 🔥 Smart learning that adapts to your schedule automatically. ✅ Wall Base / Mount Plate. ❌ Trim plate. ❌ Any other accessories. ❌ Power adapter or screwdriver.

Honeywell VisionPRO 8000 Wi-Fi Programmable Thermostat Touch Screen TH8321WF1001
Honeywell VisionPRO 8000 Wi-Fi Programmable Thermostat Touch Screen TH8321WF1001. Guaranteed no DOA.

Google Nest Learning Thermostat 4th Gen–Used–Mirror Scratches–Wall Base gold
✅ Nest Learning Thermostat (4th Gen). ✅ Replacing an existing Nest. 🔥 Smart learning that adapts to your schedule automatically. ✅ Wall Base / Mount Plate. ❌ Trim plate. ❌ Any other accessories. ❌ Power adapter or screwdriver.

Honeywell T6 Pro Series Z-Wave Programmable Thermostat - White (TH6320ZW2007)
The thermostat features a sleek square design and can be wall-mounted for easy viewing and operation. We try our best to clean these T6 Pro thermostats as best we can, but a few may have scuffs, paint, etc.

Google Nest 3rd Gen Learning Thermostat Smart Stainless Steel T3007ES
T3007ES SILVER. GOOGLE THERMOSTAT.
You save $1.00

Google Nest Learning Thermostat (4th Gen, 2024) - Polished Gold + Temp Sensor
Google Nest Learning Thermostat (4th Gen, 2024) - Polished Gold.

Lennox iComfort MAG-MOUNT Programmable Thermostat Black 104498-01
Lennox iComfort MAG-MOUNT Programmable Thermostat Black 104498-01

Ecobee Thermostat
Upgraded to Lennox and no longer need. Works fine. Hairline crack on surface but does not affect functionality. No standalone sensors, sold separately under other listing.

LG PREMTB100 Remote Controller HVAC, 12V
Fully functional but does not include any wires/power adapter. You will only receive what you see.

Nest Learning Thermostat - 3rd Generation Stainless Steel (Model T3007es)
The Nest Learning Thermostat - 3rd Generation Stainless Steel (Model T3007es) is a smart thermostat designed for home heating and cooling systems. It features a wireless design with a 24V power source and a 7-day programmable schedule. The thermostat has a circular shape and is wall-mounted, flush-mounted, surface-mounted, or cabinet-mounted. With its energy-saving features, automatic shut off, and energy reporting, it helps homeowners save on heating and cooling costs while maintaining a comfortable environment. It is compatible with various heating and cooling systems and can be controlled via remote, app, or voice commands.

Google Nest Thermostat - Smart Wi-Fi Thermostat - Snow NO SCREWS OR BATTERY
Change the temperature with your voice - The Nest Thermostat works with Hey Google on your phone and Nest speakers and displays; It also works with Alexa on other smart devices. Google Nest Thermostat - Smart Programmable Wi-Fi Thermostat - Snow.
You save $0.80

Aprilaire HVAC Lot - Thermostats, Protocol Adapters, Sensors (10 Items)
2x Aprilaire 8811 Protocol Adapter (RS232-to-RS485) - 1 new in box, 1 used. 3x Aprilaire 8870 Communicating Thermostat - Used. 1x Aprilaire 8818 Distribution Panel - Used. 3x Aprilaire 8052 Duct/Outdoor Temperature Sensor - Used.

Honeywell TH5220D1029 Focuspro 5000 Non-Programmable Thermostat
The thermostat was turned on using batteries and was not tested beyond that. It has minimal signs of usage.

Flair Puck Wireless Thermostat Smart AC Remote
Condition is used but overall is in nice shape. Please refer to the photos for reference. No batteries included. Thanks for stopping by!

Carrier SYSTXCCITC01-B Programmable Thermostat Touchscreen
The Carrier SYSTXCCITC01-B Programmable Thermostat Touchscreen is a modern and efficient device designed for controlling heating and cooling systems. With its sleek design and advanced features such as app control, Wi-Fi connectivity, and Amazon Alexa compatibility, it offers convenience and flexibility for users. The thermostat is powered by a 24V corded electric source and has a 10-year manufacturer warranty, ensuring reliability and longevity. Its 7-day programmable schedule, frost protection feature, and compatibility with heat pumps and underfloor heating make it an ideal choice for home improvement projects in the heating, cooling, and air systems category. View Pictures for condition, message me if you have any questions

Honeywell T6 Pro Series Z-Wave Programmable Thermostat - White (TH6320ZW2007)
Honeywell T6 Pro In Good Condition, All Tested on C-wire and battery.

Pro1 IAQ T755S Universal Thermostat | Programmable Heat/AC 18 to 30 VAC 50/60 Hz
The Pro1 IAQ T755S Universal Thermostat is a programmable heat/AC system that operates on 18 to 30 VAC with a 50/60 Hz frequency.
You save $4.00

(One) Trane XL824 Thermostat Programmable Wi-Fi TCONT824AS52DB Used

Vivint Element Smart Thermostat zWave Plus V-SCT-200 ( MISSING THE BASE PLATE )
Vivint V-SCT-200 User Interface: Digital. MISSING THE WALL BASE PLATE WITH THE WIRING HARNESS. (Can be installed only when you have Previous BASE PLATE Fixed). Built-in smart assistant that automates comfort and energy savings.

Lutron LR-HWLV-HVAC Comfort Control TouchPRO TH8320NR1008 Thermostat USED
Honeywell Number TH8320NR1008. Condition: USED and now sitting for a while.

HONEYWELL UWP16 T-SERIES THERMOSTAT WALL PLATE/ MOUNT ONLY 32321051-001
You save $1.18

Carrier Infinity Touch Black Touchscreen Programmable Thermostat Control
Carrier Infinity Touch Black Touchscreen Programmable Thermostat Control

Ecobee 4 Smart Thermostat with Built-in Alexa ECB401-missing room sensor/stand
***missing room sensor and stand ****** The Ecobee 4 Smart Thermostat with Built-in Alexa ECB401 is a programmable thermostat that allows for 7-day programming. It features a sleek black design with a wall-mounted shape and a 3.5-inch display size. The thermostat is powered by a corded electric source and has a voltage of 24V. It is compatible with various smart home systems such as Apple HomeKit, Google Home/Assistant, and Amazon Alexa. The built-in Alexa Voice Service allows for convenient voice control, while the included room sensor ensures accurate temperature readings. With its programmable features and advanced control style, the Ecobee 4 Smart Thermostat is a top choice for home heating and cooling systems.

Google Nest 3rd Gen Learning Thermostat Smart Stainless Steel T3007ES
This Nest is for Parts only. It does work but will not connect to our wifi.

Honeywell RTH6580WF1001 Wi-Fi - 7 Day Programmable Thermostat w/ Wall/Back Plate
Like new condition!
You save $3.97

Bryant Evolution SYSTXBBUID01-A Digital Programmable Communicating Thermostat
Pre-owned in very good condition. Removed from working evironment and tested for power and key functions. Buttons all click well. Comes with wall mount plate. Check model number carefully for compatibility with your HVAC system. Version number and Suffix "A" is not important for compatibility, but model number (SYSTXBBUID01) is. Free standard shipping, or add the item to your cart to see overnight shipping rates!

Google Nest Learning Thermostat 3rd Gen Used Good Condition (Stainless Steel)
Google Nest Learning Thermostat 3rd Gen – Pre-Owned. The Nest Learning Thermostat works with 95% of 24V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar, and geothermal (based on Nest compatibility tool).

Honeywell TH6220WF2006 T6 PRO Smart Thermostat
Thermostat only no other parts just what is shown in photos the one single piece.
You save $6.01

Ecobee 3 EB-STATE-302 Smart Wi-Fi Thermostat with Room Sensor
The Ecobee 3 EB-STATE-302 Smart Wi-Fi Thermostat with Room Sensor is a programmable thermostat that offers 7 days of programming with 2 periods per day. It features advanced sensor technology for room temperature and occupancy detection, and can be controlled via an app, digital interface, touch control, voice commands, or analog/mechanical controls. With a sleek black design and 4-wire wire configuration, this thermostat is compatible with various smart home systems including Apple HomeKit, Wink, Google Home, Amazon Alexa, and Samsung SmartThings. Its Wi-Fi connectivity allows for convenient remote management and adjustment of heating and cooling settings.
You save $10.00

Bryant Evolution SYSTXBBUID01-C Programmable Digital Thermostat Version 19 Used!
Bryant Evolution SYSTXBBUID01-C Programmable Digital Thermostat Version 19 Used! Removed from a working system. Tested to verify.

Google Nest GZZN7 Thermostat Trim Kit GA01837-US - Snow
Also subject to change especially during peak periods.

Nest Pro Thermostat
Google Nest Pro Smart Thermostat. Google Nest Pro Thermostat. ✔ You will receive exactly what is pictured and described. Mounting Base & Accessories (as pictured).

Lot of 4 Mixed Google Nest Thermostats
Please see pictures. You will receive what you see in the pictures. Only 2 base included.