SAS921WHL Digital LCD Hydronic Thermostat

High-contrast LCD and tactile physical buttons create a sleek, modern contrast design that elevates any contemporary interior. Oversized digits ensure easy reading from across the room.

Independent 7-day scheduling (4 or 6 configurable segments per day) automatically lowers setpoints during unoccupied hours — cutting energy waste and supporting green building compliance.

When paired with a wiring centre, this thermostat enables up to 8 independent heating zones. Each room maintains its own schedule — delivering tailored comfort and significant energy savings.

Supports room sensor, external floor sensor, or both. Strict floor temperature limits prevent wood warping or tile cracking — dramatically reducing post-installation callback costs.

Built-in WiFi plus optional modular Zigbee and Z-Wave readiness allows seamless integration into existing smart home networks — slashing development cycles and integration costs for OEM partners.

Supports both multi-zone underfloor manifolds and single-zone boiler retrofits. Built-in interlock ensures the boiler runs only when a zone calls for heat — optimizing energy use.