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.
Ecostar Energy L40 Dual Fuel 1 Stage Heat 1 Stage Cool Touchscreen Smart Programmable WiFi Thermostat with Auxiliary/Emergency Heat Options
This thermostat is designed for homeowners who want precise control over their dual-fuel system, like a Lennox L40, without sacrificing smart home convenience. Imagine setting a custom schedule for the week and having the thermostat automatically switch between gas and electric based on outdoor temperatures to maximize efficiency.
Unlike basic programmable models, this one learns your routine with Schedule IQ. It adjusts the temperature before you wake up or come home, so you never walk into an uncomfortable house. The touchscreen is responsive and easy to read. One-touch Away mode quickly sets energy-saving temperatures when you leave.
It works with Alexa and Google Assistant for voice control. The real-time clock handles daylight saving time changes automatically. Maintenance reminders tell you when to change filters, which is a simple way to keep your system running efficiently. If you want a thermostat that balances comfort, energy savings, and connectivity, this is a solid choice.
Features
- ENERGY STAR certified
- Seamless integration with Amazon Alexa and Google Assistant
- Smooth Setback Recovery
- Advanced scheduling with Schedule IQ Technology
- Real-time clock with automatic daylight savings
- Compressor short-cycle protection
- Maintenance reminders and alerts
- Universal compatibility for gas, electric, heat pump
- 5-year limited warranty
- Smart Wi-Fi thermostat with touchscreen control
General specs
- Brand: Ecostar Energy
- Model: L40
- Seller: Retailer
- ID: B0F3G64CZV
- Brand: Ecostar Energy
- Clock: Real-time, Automatic daylight savings update
- Memory: Permanent
- Display: Touchscreen
- Warranty: 5-year limited
- Scheduling: Up to 4 separate schedules, Schedule IQ Technology, One-Touch Away Mode
- Programmable: Yes, 7-day
- Cooling Stages: 1
- Heating Stages: 1
- Thermostat Type: Smart Wi-Fi
- Recovery Setback: Smooth
- Alerts Maintenance: Filter, Humidifier pad, UV lamp, Ventilation filter
- System Compatibility: Gas, Electric, Heat pump, Dual fuel
- Compressor Protection: 5-minute delay
- Energy Star Certified: Yes
- Auxiliary/Emergency Heat: Yes
- Smart Home Compatibility: 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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| Brand | Ecostar Energy | GCP | Honeywell | Emerson | ||
| Model | L40 | Th6220wf2006 | TH6320WF2003 | ST55U | ||
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| Price | €173.07 | €35.76 | €146.53 | €201.84 | €82.80 | €69.92 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 24, 2026 | May 20, 2026 | Jun 19, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 |
| Compatibility | Heat Pump, Conventional | Smart Home Systems | Furnace, Boiler, Heat pump, Residential HVAC systems | |||
Ecostar Energy L40 Smart Wi-Fi thermostat with touchscreen control
€173.07
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