Surprising speed: Xiaomi says its new G20 can heat a standard bathroom in under a minute.

The ceiling-mount unit bundles a 2,800-W graphene heater, a 240 m³/h (141 CFM) exhaust fan, and a 5-W LED into a single fixture, targeting cramped urban apartments where separate devices clutter walls and wiring. Xiaomi launched the Mijia Smart Bathroom Heater G20 in China priced at 999 yuan (approximately $137).

Integrated design

By merging heating, ventilation, and lighting, the G20 eliminates the need for three separate circuits. Users control all three functions through a dedicated app, a Bluetooth remote with an LCD display, or voice assistants—though Xiaomi hasn't confirmed which platforms will work outside China.

Performance claims

Xiaomi claims the graphene element heats a standard bathroom in under a minute. The fan clears odors within minutes, and a built-in plasma generator promises 99.9% sterilization of common bacteria. Independent labs haven't verified the plasma claim yet.

Xiaomi also released a lower-spec G10 model priced at 899 yuan (approximately $123). Both units are currently available only in China.

Installation and U.S. hurdles

Installing the G20 requires a reinforced ceiling mount, 220-volt wiring, and a dedicated circuit that meets local electrical codes. In the United States, UL Standards 1453 and 705 govern fixed electric heaters and power ventilators, so Xiaomi must secure UL or cUL certification before the unit can be sold here.

Existing U.S. heater-fan combos from brands like Panasonic, Broan-NuTone, and Delta Breez typically need separate smart switches for automation. The G20's native app removes that extra step, but firmware updates, cross-platform voice support, and warranty service remain uncertain outside China.

Market impact

If Xiaomi rolls the G20 out globally, competitors may start bundling functions instead of offering them as separate products. Multi-function fixtures could lower inventory costs, simplify supply chains, and free up wall space in dense urban housing.

This integrated approach represents a broader shift in smart-home design: consolidating multiple appliances into unified, app-controlled systems that reduce installation complexity and improve user experience. Whether regional safety and certification rules keep integrated smart fixtures niche or push them into the mainstream will shape the next wave of bathroom appliances.