Homematic IP Heizkoerperthermostat Basic HmIP-eTRV-B-2 - Smart Heat Control And Easy Retrofit
Published on 09/07/2026 at 17:13 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Homematic IP Heizkoerperthermostat Basic HmIP-eTRV-B-2 is a compact smart radiator thermostat that replaces a standard manual valve and adds programmable, app-controlled heating to rooms without changing the boiler or pipework.
Design, Power And Installation Details
The Homematic IP Heizkoerperthermostat Basic uses a Versorgungsspannung of 2x 1.5 V LR6/Mignon/AA batteries and is specified for a typical Batterielebensdauer of 2 years, which keeps maintenance intervals relatively low for a wireless heating accessory.Technical data overview
The housing is compact, with Abmessungen of 57 x 68 x 102 mm (B x H x T), and a weight of 185 g including batteries, so it does not protrude far into the room and fits typical radiator positions without interfering with furniture.Size and weight data
The device connects mechanically via an M30 x 1.5 mm Anschluss at the valve, which is a common thread standard on European radiators, and the package includes a Danfoss RA adapter and support ring in documented multipacks so compatible valves can be covered without extra parts.Mounting instructions
Wireless Control And Smart Home Integration
The Homematic IP Heizkoerperthermostat Basic communicates via a Funk-Frequenzband of 868.0-868.6 MHz and 869.4-869.65 MHz, with a typical Funk-Freifeldreichweite of 250 m, which allows the thermostat to reach a Homematic IP Access Point or Home Control Unit in larger homes when placed with reasonable line of sight.Radio specifications
Operation requires pairing with one of several Homematic IP system solutions, such as an Access Point or Control Unit, and it uses the Homematic IP Funk Push-to-Pair method, so the thermostat can be added to the system by pressing a button rather than entering long codes.System integration overview
The thermostat is part of the wider Homematic IP Smart-Home-System, and documentation notes that more than 3,000,000 households use home control technology from Homematic IP and related brands, signaling that the underlying ecosystem has broad deployment and long-term support from eQ-3 AG.Brand and system background
Homematic IP Heizkoerperthermostat Basic Official Specs
eQ-3 AG publishes the detailed technical data, dimensions and operating conditions for the Homematic IP Heizkoerperthermostat Basic HmIP-eTRV-B-2.
Operating Range And Use Cases
The Homematic IP Heizkoerperthermostat Basic is specified for an Umgebungstemperatur of 0 to 50 °C, which means it can operate reliably in typical indoor conditions around radiators even when the valve body becomes warm in winter.Operating conditions
The Schutzart is listed as IP20, indicating protection against solid objects larger than 12.5 mm but no water protection, so the thermostat is aimed at dry indoor rooms rather than bathrooms or areas where splashing water is expected.Protection class data
Documentation for starter sets and multipacks describes the device as helping actively with Energiesparen by replacing conventional radiator thermostats and enabling daily temperature schedules with up to 13 changes per day, so rooms can be heated only when needed and lowered during absence.Usage and scheduling description
Price Point And Market Position
A documented retail listing for Homematic IP Heizkoerperthermostat Basic in a European online shop shows a single thermostat price of 32.95 € for the white color, which places it among reasonably priced smart radiator controllers when compared in its home market as of 09/03/2026.Retail pricing information
Multipacks of two or three thermostats documented by specialist retailers include the same Basic model together with Danfoss RA adapters, support rings, mounting material, and LR6 AA batteries, and they are aimed at users who want to upgrade several radiators at once with a consistent control solution.Multipack description
Within the Homematic IP range, the Basic thermostat sits below more advanced models with integrated displays or additional sensors, but it covers the key needs of programmable heating, remote control via app or voice assistants when paired with an Access Point, and a retrofit-friendly mechanical mounting system.Portfolio overview
Comparison With Standard Radiator Valves
Compared with a conventional manual radiator valve that has no wireless features and no timer, the Homematic IP Heizkoerperthermostat Basic offers up to 13 temperature changes per day in three adjustable Heizprofile, so users can define morning, daytime, and night temperatures more finely and avoid unnecessary heating when rooms are unused.Scheduling capabilities
Standard mechanical valves usually only provide a coarse temperature scale and depend on occupants remembering to turn them down, while the Basic model uses electronic control and app integration through Homematic IP, and manufacturer and retailer materials mention potential Heizkosten savings of up to around one-third when combined with window-open detection and thoughtful schedules.Energy saving notes
This places the Homematic IP Heizkoerperthermostat Basic as a practical upgrade for homes that already use traditional valves but want to cut energy usage and add remote control without installing new boilers or complex central building control, especially when paired with other Homematic IP sensors and thermostats.
Key Facts At A Glance
- Product: Homematic IP Heizkoerperthermostat Basic HmIP-eTRV-B-2
- Manufacturer: eQ-3 AG, Leer, Germany (Homematic IP brand)
- Category: Smart radiator thermostat
- Model designation: HmIP-eTRV-B-2, Kurzbezeichnung for Basic thermostat
- Power supply: 2x 1.5 V LR6/Mignon/AA batteries, 3 V operation
- Dimensions: 57 x 68 x 102 mm (B x H x T), 185 g including batteries
- Radio range: Typical 250 m free-field, 868 MHz Homematic IP protocol
- Target audience: Home users adding programmable, app-based heating control to radiators
