Multi-Zone Thermostats
Choose smart thermostat replacements for each existing low-voltage HVAC zone, and avoid confusing room sensors or fans with true zone control.
Lennoxe L40 Smart Thermostat: Smart Wi-Fi connectivity
The Lennoxe L40 Smart Thermostat is perfect for homeowners who want precise and cost-effective temperature control. Imagine coming back from vacation to a perfectly comfortable home without wasting energy while you were away. This thermostat’s Smooth Setback Recovery learns your schedule and adjusts the temperature gradually, so you never feel a sudden blast of hot or cold air when you return.
The large touchscreen makes programming easy. You can set up to four distinct schedules and use One-Touch Away Mode to save energy when you leave. The real-time clock automatically adjusts for daylight saving time, and the thermostat retains all settings during power outages. Maintenance reminders tell you exactly when to change filters, helping your HVAC run efficiently.
Seamlessly control the thermostat with your Alexa or Google Assistant. The built-in Wi-Fi lets you adjust the temperature and view humidity from your phone, whether you’re in bed or at the office. With ENERGY STAR certification and a 5-year warranty, the L40 gives you comfort and savings you can count on.
Features
- Touchscreen display
- Programmable 7-day schedule
- ENERGY STAR certified
- Works with Amazon Alexa
- Works with Google Assistant
- Compressor short-cycle protection
- Maintenance reminders
- Dual-fuel heat pump support
- 5-year limited warranty
- Smart Wi-Fi connectivity
General specs
- Brand: Lennoxe
- Model: L40
- Seller: Retailer
- ID: B0FMGPMTLR
- Warranty: 5-year limited warranty
- Scheduling: 7-day programmable, Up to 4 schedules per day, Schedule IQ Technology, One-Touch Away Mode
- Easy Install: Yes
- Model Number: 27V51
- Thermostat Type: Smart, Programmable, Touchscreen, Wi-Fi
- Special Features: Smooth Setback Recovery, Real-time clock with daylight saving auto-update, Permanent memory storage, Compressor short-cycle protection (5-minute delay), Maintenance reminders, Filter change alerts, Humidifier pad alerts, UV lamp alerts, Ventilation filter alerts
- Compatible Systems: Single Stage, 1H/1C Conventional, 2H/1C Dual Fuel Heat Pump
- Compatible Equipment: Non-communicating single-stage systems, Lennox communicating equipment
- Energy Certification: ENERGY STAR certified
- Smart Home Integration: Amazon Alexa, Google Assistant, Control4, Building36
- First listed by seller: May 20, 2026
If you are interested in more details, you can find full information on the seller's page.
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| Price | €182.83 | €113.79 | €52.51 | €332.61 | €36.08 | €284.48 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 24, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 | May 20, 2026 | May 28, 2026 |
| Connectivity | Wi-Fi | Smart Wi-Fi, Communicating, Remote Access | WiFi | |||
| Voice Control | Yes | Alexa, Google Assistant | Yes | |||
| Type | Smart WiFi Programmable Thermostat | Thermostat | Wall Thermostat | |||
| Display | Frosted, low-glare display | Touchscreen | Touchscreen | 4.3-inch Color Touchscreen | ||
Lennoxe L40 Smart Wi-Fi connectivity
€182.83
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