Lennox S40 Smart Thermostat GTA | Communicating Control

Description

Lennox S40 Smart Thermostat – Precision Comfort, Fully Connected

The Lennox S40 Smart Thermostat is the flagship controller for Lennox communicating systems. Designed to be the “brain” of your HVAC system, it continuously communicates with compatible Lennox furnaces, air conditioners, heat pumps and air quality products to fine-tune comfort, efficiency and air cleanliness throughout your home.

For homeowners in the Greater Toronto Area, the S40 offers advanced features like “feels like” temperature control, smart scheduling, geo-fencing, smart room sensors and indoor air quality monitoring – all wrapped in a sleek touchscreen interface with app and voice control.

Smarter Temperature – “Feels Like” Comfort

Instead of looking only at the thermostat number, the S40 considers both temperature and humidity to deliver a comfort level that matches how you actually feel. When you set a certain temperature, the thermostat works with your Lennox system to make the home feel like that setting, not just reach it on paper.

When paired with modulating Lennox equipment, the S40 can hold temperatures within a very tight range, reducing hot and cold swings and keeping your home consistently comfortable.

Schedule IQ™ & Smart Away™ – Learns Your Lifestyle

The Lennox S40 is built to learn and adapt:

• Schedule IQ™ technology builds a schedule based on your inputs and automatically optimizes it over time.
• Smart Away™ geo-fencing uses your smartphone location to detect when you leave and return, adjusting settings to save energy without sacrificing comfort.
• One-touch Away mode lets you instantly set the system to an energy-saving setting when you’re heading out.

The result is a thermostat that quietly manages comfort and savings in the background, instead of requiring constant manual adjustments.

Lennox Smart Accessories & Air Quality Integration

The S40 is designed to work as part of a complete Lennox comfort ecosystem:

• Lennox Smart Room Sensors – provide temperature and humidity readings in key rooms and detect occupancy so the system can balance comfort where it matters most.
• Lennox Smart Air Quality Monitor – keeps an eye on indoor air quality metrics and coordinates with the HVAC system to respond when air needs to be cleaned or refreshed.
• Wireless Extender – helps maintain reliable communication in larger homes.
• PureAir™ S Air Purification integration – the thermostat can monitor filter and lamp life and prompt you when maintenance is needed.

With the S40 at the centre, temperature, humidity, ventilation and filtration can all work together for cleaner, more comfortable air.

Whole-Home Control for Lennox Communicating Systems

The S40 is engineered to recognize and configure compatible Lennox communicating equipment automatically. It can:

• Identify model and serial numbers of Lennox communicating units for faster setup.
• Continuously communicate with the furnace, air conditioner or heat pump to maintain peak efficiency.
• Coordinate with indoor air quality products such as humidifiers, dehumidifiers, HRV/ERV systems and fresh air dampers (when installed).

With the optional zoning system (available on specific Lennox setups), the S40 can act as the central controller for up to four zones, giving different parts of your home their own comfort settings.

Smartphone App, Wi-Fi & Voice Control

Remote access is built in:

• Wi-Fi connectivity lets you control your Lennox S40 Smart Thermostat from virtually anywhere using the Lennox app.
• Adjust temperature, schedules and modes while you’re away, or check system status before you get home.
• Works with popular smart home assistants (such as Amazon Alexa and Google Assistant), allowing simple voice control for everyday adjustments.

Whether you’re on the couch, at the office or travelling, your home’s comfort is just a tap or a voice command away.

Installer-Friendly & Service-Ready

The Lennox S40 is also designed to make life easier for technicians and to keep your system running smoothly:

• Communicating touchscreen interface simplifies configuration and setup.
• Advanced diagnostics can display alerts, error codes and maintenance reminders directly on the thermostat.
• Installers can run individual component tests (indoor unit, outdoor unit, accessories) for faster troubleshooting.
• Supports up to 3 stages of heat and 2 stages of cooling when used with the appropriate equipment interface for non-communicating systems.

This level of visibility helps prevent small issues from becoming big problems and supports better long-term reliability.

Clean, Modern Design

With its slim, black touchscreen design, the Lennox S40 Smart Thermostat looks at home in modern interiors. The display is:

• Easy to navigate with clear icons and simple mode changes.
• Capable of screen savers and customizable displays (weather, system info, etc., depending on configuration).
• Designed with proximity sensing, so the screen wakes up as you approach.

It’s a control that not only improves comfort, but also complements your décor instead of standing out as an eyesore.

Perfect Match for High-Efficiency Lennox Systems in the GTA

The S40 is the ideal thermostat for homeowners in the Greater Toronto Area who are investing in Lennox premium furnaces, air conditioners, heat pumps and air purification systems. When paired with communicating Lennox equipment, you get:

• Maximum comfort from modulating and variable-speed systems.
• High efficiency backed by smart controls and geo-fencing.
• Better air quality through coordinated filtration and ventilation control.

For Saving Home Services Inc. supplies and professionally installs the Lennox S40 Smart Thermostat with compatible Lennox systems across Toronto, Markham, Richmond Hill, Vaughan, Mississauga and surrounding GTA communities.

If you’re upgrading to a new Lennox system or looking to unlock the full potential of your existing communicating equipment, the Lennox S40 Smart Thermostat is the controller designed to bring everything together.