(S30/E30/M30) iComfort T-Stat

(S30/E30/M30) iComfort T-Stat

by Lennox Industries

45K ratings
265 reviews
Free

Details

  • Released
  • Updated
  • August 24, 2015
  • April 16, 2026

Background Location Access

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(S30/E30/M30) iComfort T-Stat screenshot #8 for iPhone
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About

Control your home's HVAC system remotely with this app, allowing you to adjust temperatures, set schedules, and monitor air quality. It offers smart features like location-based temperature adjustments and advanced warnings for potential system issues.

Remote temperature adjustment
Thermostat scheduling
Smart Away™ Mode
Feels Like™ Temperature
Allergen Defender
PureAir™ integration
System alerts and warnings
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What users say

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What's New in (S30/E30/M30) iComfort T

3.96.016

April 16, 2026

This app will be sunset soon. Migrate to the Lennox Home app for a better experience. Just sign in with your iComfort S30/M30/E30 credentials, your settings will transfer automatically so you can keep controlling your S30/M30/E30 thermostats remotely.

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User reviews

Loved this app

So disappointed that this app was discontinued. It was so simple to use and interfaced well with my wall mounted controller. The new app doesn’t interface well with my wall mounted controller. The screens are completely different and the app is difficult to navigate and use.

When it works it’s ok but often disconnects

This is the worst thermostat I’ve had. It goes offline or completely dead randomly. I have had Nest thermostats in other homes that don’t have these issues. Basically this is unreliable.

It rarely works!

It’s just ok, this app needs a lot of work. It rarely works before you get frustrated and don’t bother. It would be wonderfully convenient if it did but constantly has a hard time connecting to the thermostat. Frustrating as heck!!

Garbage dated app

Made by geezers who wrote this app in COBOL

Awesome

Very easy app to use very convenient too

Developer apps

User experience

🐞

Reported Bugs

4 issues

App fails to connect to thermostat

Bug

Temperature settings not registering

Bug

Inconsistent display of HVAC status

Bug

Unexpected resets of thermostat schedules

Bug

Requested Features

4 requests

Integrate with smart home platforms

Feature

Customizable temperature alerts

Feature

Improved scheduling and automation options

Feature

Enhanced data visualization and analytics

Feature

FAQ

What does the iComfort T-Stat app do?

This app allows you to remotely control your Lennox iComfort S30, E30, or M30 smart thermostat. You can adjust your home's temperature, set custom schedules, and monitor your HVAC system's performance from anywhere in the world.

What are the key features of the iComfort T-Stat app?

Key features include remote temperature adjustments, the ability to edit and view your thermostat schedule, Smart Away™ Mode which uses your phone's location to optimize energy savings, and the Feels Like™ Temperature which accounts for humidity to maintain your desired comfort level.

Is the iComfort T-Stat app free to use?

Yes, the app is free to download and use. However, you must own a compatible Lennox iComfort S30, E30, or M30 thermostat and have it connected to your home's Wi-Fi router to utilize its features.

What are the compatibility requirements for the iComfort T-Stat app?

To use this app, you must own a Lennox iComfort S30, E30, or M30 thermostat. Additionally, the thermostat needs to be connected to your home's Wi-Fi router for the app to control its settings.

How does the Smart Away™ Mode work?

Smart Away™ Mode utilizes the GPS location of your mobile phone to detect when your house is empty. It then automatically adjusts the temperature to a more energy-efficient setting. When a family member is detected on the way home, it reverts the temperature to its regular setting.