Mill Wi-Fi Panel Heater Gen4

Matter 1.4 certificate

Its certificate, CSA25578MAT46282-24, is for Matter 1.4, certified Aug 4, 2025. The Matter version is the specification version on the certificate's ledger record.

Source: CSA Distributed Compliance Ledger, read Oct 19, 2026.

Quick answers

Is the Mill Wi-Fi Panel Heater Gen4 Matter certified?

Yes. MatterCatalog matches it to CSA Matter certificate CSA25578MAT46282-24, certified Aug 4, 2025.

Does the Mill Wi-Fi Panel Heater Gen4 work with Apple Home or HomeKit?

Likely. It is Matter certified (certificate CSA25578MAT46282-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Apple Home on a page we hold. Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub. Apple’s Matter page lists thermostats among the accessory types the Home app supports.

Add a Matter device to Apple Home

Does the Mill Wi-Fi Panel Heater Gen4 work with Google Home?

Likely. It is Matter certified (certificate CSA25578MAT46282-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home. Google’s supported-device-types page lists the Thermostat type.

Add a Matter device to Google Home

Does the Mill Wi-Fi Panel Heater Gen4 work with Alexa?

Likely. It is Matter certified (certificate CSA25578MAT46282-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Alexa on a page we hold. Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does.

Add a Matter device to Alexa

Does the Mill Wi-Fi Panel Heater Gen4 work with Samsung SmartThings?

Likely. It is Matter certified (certificate CSA25578MAT46282-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named SmartThings on a page we hold. SmartThings adds Matter devices through the SmartThings app and a Matter controller.

Add a Matter device to SmartThings

Does the Mill Wi-Fi Panel Heater Gen4 work with Home Assistant?

Likely. It is Matter certified (certificate CSA25578MAT46282-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.”

Add a Matter device to Home Assistant

Does the Mill Wi-Fi Panel Heater Gen4 use Thread or Wi-Fi?

Wi-Fi. Its catalog record lists Wi-Fi, so it joins your Wi-Fi network and does not need a Thread border router. You still need your platform’s Matter controller.

Does the Mill Wi-Fi Panel Heater Gen4 need a hub or a Thread border router?

No hub of its own and no Thread border router: it joins your Wi-Fi network. You still need your platform’s Matter controller (a smart speaker, display, streaming box or hub), though Apple says an iPhone using iOS 18 or later can add Matter accessories without a home hub.

When was the Mill Wi-Fi Panel Heater Gen4 Matter certified?

The CSA certified it on Aug 4, 2025 (certificate CSA25578MAT46282-24). That is its certification date, not a retail release date, which MatterCatalog does not state.

Is the Mill Wi-Fi Panel Heater Gen4 sold in the US?

MatterCatalog labels it as sold outside the US: EU version. We don't link a US store for this regional version.

From this product’s catalog record, not hands-on testing. Editorial policy