E40, Touchscreen Smart Thermostat

Lennox E40 Smart Thermostat, Universally Compatible, Wi-Fi Thermostat for Multi-Stage Equipment

The Lennox E40 Smart Thermostat is a simple, easy-to-use device featuring a 5-inch color display. This ENERGY STAR® certified thermostat is compatible with multi-stage heating and cooling systems, as well as dual fuel equipment (Auxiliary/Emergency Heat).

The Lennox E40 Smart Thermostat is a simple, easy-to-use device featuring a 5-inch color display. This ENERGY STAR® certified thermostat is compatible with universal 3H/2C conventional 4H/2C heat pump application heating and cooling systems, as well as dual fuel equipment (Auxiliary/Emergency Heat).

• Small, modern touchscreen display with a slim, attractive design that’s easy to navigate.
• Universally compatible smart thermostat for multi-stage, non-communicating HVAC systems.
• Feels Like® technology delivers the temperature homeowners feel, not just the temperature they set, by accounting for humidity.
• Automatic changeover switches between heating and cooling as needed for year-round comfort.
• Schedule IQ™ Technology - Allows you to program the thermostat once. Whenever there’s a change in the routine, the thermostat adapts to heating and cooling to match. Up to four separate 7 days schedules are available plus Schedule IQ™.
• Smart Away™ - Uses homeowner inputs and Smart Away® geo-fencing capabilities to learn routines and create a schedule that maintains comfort when the home is occupied and help save energy when it's not.
• One-Touch Away Mode - Overrides regular programming schedule with a single touch and sets back heating and cooling set points to save energy.
• Energy Star certified - Heating, ventilation and air conditioning equipment with the Energy Star label meets or exceeds federal guidelines for energy efficient performance. Energy Star certification allows for local energy rebates.
• Remote access from anywhere through the Lennox Home app, allowing you to monitor and adjust temperature and schedules from your smartphone or tablet.
• Smart Home Integration - The Lennox E40 Smart Thermostat effortlessly integrates with a range of smart home devices, from premium smart home systems like Control4 to popular virtual assistants like Amazon Alexa, Matter, Google Assistant, and Building36.
• Advanced diagnostics monitor system performance, provide alerts, and allow remote sharing of system information with Lennox dealers for faster troubleshooting.
• Performance reports give homeowners insights into run times, temperature ranges, and system behavior to optimize efficiency.
• Custom equipment profiles make the system easier to install, service and fine tune.
• Streamlined setup and onboarding guide you step-by-step through Wi-Fi connection, account creation, feature customization, scheduling, alerts, and Away Mode.
• E40 comes with a 5-year warranty

Installation Guides and User Manuals are virtually available.  Inside the box you will find an Installer Quick Start Wiring Guide, a Homeowner Quick Start Guide, and a Warranty Card.