One Thermostat Endless Possibilities

The TMEC3E Wi‑Fi represents Thermowatt’s third‑generation evolution in mechatronic smart thermostats, engineered specifically for residential hot water electric heaters. With advanced electronic control, mechanical safety cut‑out on the stem (water immersed), and new energy‑flexibility capabilities, the TMEC3E Wi‑Fi sets a new standard for performance, efficiency, and reliability. The TMEC3E Wi‑Fi brings together the power of dual‑band Wi‑Fi 6 (2.4 / 5 GHz), a redesigned compact installation layout, and a full suite of smart features accessible through the MyThermowatt App.

Benefits for Every User Type

OEMs: simplified system design, reduced production complexity, lower investment and inventory requirements, a cost‑effective advanced solution.

Installers: compact design for easy installation, retrofitting possibility, front‑access terminals for quick wiring.

Aftersales: reduced troubleshooting time, smart diagnostics, OTA updates and remote control.

End Users: comfort and energy savings, full remote control, safety and reliability, energy‑awareness functions, ready to take part in DSR / CLF programs.

Designed for Easy Installation and Maximum Compatibility

- Compact, familiar form factor: echoes the size and shape of traditional mechanical thermostats for seamless replacement.

- Optimized cable entry and front screws: improves wiring speed and reliability even in tight spaces.

- Perfect solution for OEM, retrofit and aftersales: lower design complexity, fewer components, reduced costs, easier maintenance.

Energy Efficiency & Smart Control

- Reach energy efficiency class “B” according to European ErP regulation: ECO mode and adaptive algorithms significantly reduce energy consumption while maintaining comfort.

- Boost function for extra hot water on demand: allows a temporary temperature increase defined by user preferences.

- Programmable Weekly Schedule (AUTO mode): gives users the highest level of control and customization.

CLF / DSR Ready

The TMEC3E Wi‑Fi supports Consumer‑Led Flexibility (CLF) / Demand‑Side Response (DSR) programs hence, if the user enters an agreement with an energy aggregator partner of Thermowatt, the thermostat can automatically adjust heating based on received commands, helping to balance the electricity grid during peak periods.

OTA (Over‑the‑Air) firmware updates

Device stays always up to date with performance enhancements and new features.

Certifications & Cybersecurity (RED 2025 Compliant)

The TMEC3E Wi-Fi meets stringent European standards EN60730‑1 / EN60730‑2‑9, EN60335‑1 / EN60335‑2‑21 and all mandatory cybersecurity requirements effective August 1, 2025, under the Radio Equipment Directive (RED).

Data Act

The TMEC3E Wi-Fi produces and transfers data in accordance with the information notice.