HUUM Drop 9.0KW + Controller (Heater Kit)

The HUUM Drop is one of the standout heaters in the HUUM range — an Estonian-built electric heater whose rounded, water-drop form softens the usually angular corner of a sauna. It looks like an object you'd choose to show rather than hide.

Beyond the design it does the fundamentals well: a large rock capacity generates rich, enveloping steam, and popular Wi-Fi control connects it to HUUM's app for away-from-home start, so the room is hot before you reach it. The kit includes 60 KG of HUUM premium rocks and your choice of Wi-Fi or non-Wi-Fi controller.

The Drop is what happens when a design office in Tartu decides the sauna heater deserves the same attention as the room. Its rounded body — genuinely inspired by a falling water drop — softens the visual temperature of a timber room, and the engineering underneath is just as considered: 60 kg of stone in a compact vertical envelope, more thermal mass per footprint than anything comparable.

That stone load is the Drop's signature in use: löyly arrives as a long, enveloping wave that keeps giving seconds after the ladle, the character bathers describe as 'deep'. Nine kilowatts drives it, which moves the Drop into larger home rooms — the 9–15 m³ band — and makes it the natural pairing for our cabin builds.

HUUM's app control is the segment's benchmark: schedule from anywhere, monitor temperature in real time, integrate the door sensor for safety compliance. The kit ships with your choice of Wi-Fi or local controller; most owners take the app and never look back — pre-heating from the office is the habit that sticks.

Estonian build quality shows in the details: welds you'd accept on cookware, a stone basket engineered for airflow rather than just containment, stainless that stays handsome as it ages. It's a heater bought partly with the eyes, and it survives the second look.

Fit note: the Drop wants headroom for its vertical stone column and a room that justifies 9 kW — if your build is smaller, our Harvia 8 kW kits are the honest recommendation, and we'll say so in the quote. Where it fits, nothing else in the line matches its combination of mass, control, and presence.

HUUM's founding story explains the product: Estonian engineers who grew up with sauna culture set out to build the heater they wanted in their own rooms — which is why the Drop optimizes for the two things bathers actually feel, stone mass and steam character, and wraps them in a body worth looking at. It's a bather's heater before it's a spec sheet.

The 60-kilogram stone load has a practical corollary worth knowing: charge time. The Drop takes a little longer than small-basket heaters to fully saturate its stones — and then repays it for the whole session, holding löyly quality deep into round three when shallow beds have gone flat. Schedule the pre-heat accordingly and the trade is entirely one-sided.

It's also the heater we recommend when the sauna is shared with design-conscious cohabitants: the Drop is the one piece of sauna equipment that gets asked about at parties. That's not nothing — rooms that are loved get used.

Warranty and parts round out the case: HUUM backs the Drop with manufacturer coverage and a parts catalogue that treats the heater as serviceable equipment — elements, sensors, and controller components all replace individually, so a decade-old Drop repairs like a machine, not a disposable.

• Estonian-built — HUUM's signature heater
• Compact body, generous rated room volume
• Its water-drop silhouette rounds off the sauna's usual angles — sculpture that happens to heat
• HUUM app connection pre-heats the room from wherever you are
• Big open stone basket throws rich, soft steam

WHAT'S IN THE KIT

• 60 kg of HUUM premium stones (3–5 cm)
• HUUM controller (Wi-Fi or standard)
• HUUM Drop 9.0 kW heater

Stones and a controller (Wi-Fi or standard) are required for operation — this kit ships complete.