Homematic IP Starter Set Heizen HmIP-SK16 - Three Heating Profiles

Homematic IP Starter Set Heizen HmIP-SK16 is a wireless heating kit built around an access point and radiator thermostats. The system brings app control, device controls, and voice control through Amazon Alexa or Google Assistant to compatible radiator valves.

What Comes in the Set

The kit uses the HmIP-HAP access point and HmIP-eTRV-B radiator thermostats. The official English data sheet lists an access point, a plug-in power supply, a network cable, two thermostats, Danfoss RA adapters, batteries, mounting accessories, and an operating manual in the package.

The access point measures 118 x 104 x 26 mm, weighs 153 g, and uses a 5 V power supply. Its Ethernet connection is specified as 10/100 Mbit/s with Auto-MDIX, while its typical open-area radio range is 400 m.

Heating Control and Compatibility

Each thermostat uses two 1.5 V AA batteries and has a typical battery life of 2 years. The thermostat measures 57 x 68 x 102 mm, weighs 185 g including batteries, and uses an M30 x 1.5 mm threaded connection.

The app supports up to three customizable heating profiles and 13 changes per day. Open-window detection can lower the temperature automatically, while optional window and door contacts provide a more precise trigger for that function.

Where the Kit Fits

Homematic IP positions the HmIP-SK16 as a starter kit for radiator-based room control rather than a replacement for a forced-air thermostat. Installation does not require draining the heating system, and the thermostats are designed for common radiator valves with the supplied mounting hardware.

The wireless system operates in the 868.0-868.6 MHz and 869.4-869.65 MHz bands. The access point supports a free smartphone app and cloud service, and the manufacturer states that continuous security-update support is guaranteed for more than 5 years.

Verdict for Radiator Homes

HmIP-SK16 is a focused entry point for homes with compatible hydronic radiators. Its strongest quantified features are the three heating profiles, 13 daily schedule changes, 2-year typical thermostat battery life, and M30 x 1.5 mm connection.

The kit is less directly suited to US homes dominated by forced-air systems. Compared with a single smart radiator thermostat, it adds a central access point and multiple controlled zones; compared with a wired boiler controller, it leaves the heat source itself outside the package.