Lennox L40 Smart Thermostat, Touchscreen, Wi-Fi, Programmable, 1 Heat/1 Cool (Dual Fuel), Auxiliary/Emergency Heat
The Lennox thermostat L40 is a compact smart programmable thermostat, measuring 3.7 inches in height and width, and 1 inch in depth. Designed for 1 heat and 1 cool dual fuel systems, it features Wi-Fi connectivity and automatic changeover for convenient temperature management. This unit is ideal for smaller homes or spaces, providing an efficient way to control your heating and cooling needs.

The Lennox L40 Smart Thermostat, Touchscreen, Wi-Fi, Programmable, 1 Heat/1 Cool (Dual Fuel), Auxiliary/Emergency Heat (model L40) is a Lennox thermostat that Aurora Star Tech supplies and installs for homes and businesses across the Greater Toronto Area. Below are the manufacturer specifications we use when sizing and installing this unit.
Key specifications
- Catalog Number: 27V51
- Model/Part Number: L40
- Base Unit of Measure: Unit(S)
- Gross Weight: 1 LB
- Family: L40
- Series: L40
- Type: Smart Programmable Thermostat
- Programs per Week: 7 Day
- Changeover: Automatic Changeover
- Wi-Fi Enabled: Wi-Fi
- Intelligent Recovery: Intelligent Recovery
- Stages: 1H/1C conventional 2H/1C heat pump application
- Screen Type: Touchscreen
Aurora Star Tech handles the job from the site visit and sizing through supply, installation and start-up testing, so you deal with one local team from quote to commissioning.
Not sure if the Lennox thermostat is the right size for your home or building? Request a quote and our team will confirm the sizing, the electrical requirements and the installation details with you before anything is ordered.
| Brand | Lennox |
| Catalog Number | 27V51 |
| Model/Part Number | L40 |
| Base Unit of Measure | Unit(S) |
| Gross Weight | 1 LB |
| Family | L40 |
| Series | L40 |
| Type | Smart Programmable Thermostat |
| Programs per Week | 7 Day |
| Changeover | Automatic Changeover |
| Wi-Fi Enabled | Wi-Fi |
| Intelligent Recovery | Intelligent Recovery |
| Product Height | 3.7 Inch |
| Product Width | 3.7 Inch |
| Product Depth | 1 Inch |
| Stages | 1H/1C conventional 2H/1C heat pump application |
| Screen Type | Touchscreen |
