Admin - 04:00 pm -
November 13th, 2025 
Here at MacFarlane Energy, we’re proud to install state-of-the-art home comfort systems – from high-efficiency boilers and furnaces to space-saving ductless air conditioners and indoor air quality equipment.
While our Eastern Massachusetts friends and neighbors have different needs that require different systems, there’s one piece of home comfort equipment we recommend to ALL our customers: the Lennox S40 Smart Thermostat.
Not Your Father’s Thermostat
When you think of a thermostat, you might picture a bulky box on the wall that requires manual operation to adjust the temperature, or utilizes simple pre-set schedules. Modern smart thermostats like the Lennox S40 use Wi-Fi connectivity, learning algorithms and remote-control capabilities to automate and optimize your home’s climate control.
What We Like about the Lennox S40 Smart Thermostat:
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The Lennox Smart Thermostat App allows you to self-monitor and adjust temperatures from anywhere (available via the App Store and Google Play).
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The S40 Smart Thermostat can easily link to your other Lennox comfort products to help create the highest levels of comfort and efficiency.
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Smart Away™ - Schedule IQ™ uses geo-fencing to determine when you are away, leaving, or arriving home to automatically change the temperature for more energy-efficient heating and cooling.
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A slim, state-of-the-art touch screen allows for easy setup and configuration and will display scheduled maintenance alerts, troubleshooting options, and system warnings.
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Easily set heating and cooling setpoints when you are away from home with the One-Touch Away Mode.
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Check the weather from your S40 Smart Thermostat with live weather data and seven-day forecasts.
Chances are, you’ve probably updated your home over the years with modern appliances, fixtures and furnishings. It’s time to upgrade your thermostat to a new, smart model, with the Lennox S40. Give us a call at 781-326-9500 or contact us, and we’ll tell you more!
