Lennox L40 Smart Thermostat

L40 is a compact, single-stage smart thermostat with Schedule IQ and Matter support for use in major ecosystems.

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Lennox l40 smart thermostat product

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Information

MakerLennox
CategoryThermostat
Statusreleased
Product Pagehttps://www.lennoxsmartertogether.com/help/L40/pdp_l40.html
Price
$249.00 as of 12:38 AM UTC
Amazon US

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the relevant retailer site (including Amazon) at the time of purchase will apply to the purchase of this product.

The L40 is a compact smart thermostat with a simple four-color touchscreen and large on-screen controls suited to quick taps. It supports single-stage HVAC systems and uses Schedule IQ to learn your household routine, factoring in geofencing and comfort preferences to shape daily temperature plans. It now works with major smart home platforms through Matter, so it can sit alongside lights, locks, and sensors in scenes and automations without extra hubs.

Supported Matter Capabilities

Full feature details →

11 clusters across 4 categories · 7 features supported

Matter
1.3
Firmware
04.38.0087
Endpoints
1
Thread beta
—

Comfort & Climate

2 clusters
Thermostat
4 features
Heating Cooling Occupancy Auto Mode Schedule Configuration Setback Local Temperature Not Exposed
Thermostat User Interface Configuration
Supported

Security

1 cluster
Access Control
Supported

Automation & Scenes

4 clusters
Binding
Supported
Fixed Label
Supported
Groups
1 feature
Group Names
User Label
Supported

Other

4 clusters
GeneralDiagnostics
Supported
DataModelTest
LocalizationConfiguration
Supported
TimeFormatLocalization
Supported
CalendarFormat
WiFiNetworkDiagnostics
2 features
PacketCounts ErrorCounts
Management, networking, and diagnostic clusters are not shown in this summary.

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Specifications

Manufacturer Part Number108275
LabelLennox L40 Smart Thermostat
Certification IDCSA25B3CMAT47758-24
Latest Firmware Version04.38.0087
Matter Version1.3
Network Matter over Wi-Fi
Software Versions

  1. 04.38.0087 Latest ✓

    Certificate: CSA25B3CMAT47758-24

  2. 04.38.0081 ✓

    Certificate: CSA2592AMAT47228-24
Firmware Version
Hardware Version 0004
Compliance Document
Matter Specification Version 1.3
Transport Interface
Primary Device Type ID
Firmware Version
Compliance Document
product.meta.csa_product_type End Product
MPN L40