HUUM DROP 9kW Electric Heater Package
HUUM DROP 9 kW heater, UKU control and 132 lb of stones in one package, for 283–460 cu ft sauna rooms
- Heater, UKU control and stones matched in one order
- Red Dot award-winning water-drop design
- Wi-Fi options add HUUM app control
- Description
- What's Included
- Specifications
- Installation
- Documents
- Warranty
What is the HUUM DROP 9 kW electric heater package?
The HUUM DROP 9 kW package combines three parts: the HUUM DROP 9 kW wall-mounted electric sauna heater, a HUUM UKU control (UKU Local, or UKU Wi-Fi with a black, glass or mirror panel) and four 33 lb boxes of HUUM Stones 24. It is sized for sauna rooms of 283–460 cu ft and runs on 240 V. The package price is the sum of the three parts; ordering them together means the stone quantity and the control are already matched to the heater.
Inspired by a drop of water, the DROP softens the straight lines of a classic sauna. Its stone basket holds about 121 lb of stones, which HUUM says is more than most wood-burning heaters take, and most of the stones stay exposed for a longer, milder heat. The DROP won a Red Dot design award in 2015.
Which UKU control should I choose?
All four options run the HUUM DROP 9 kW and set temperature, heating time and a start timer from the wall panel. The Wi-Fi options add the HUUM app, so you can start the sauna on your way home. The black CLASSIC panel must be mounted outside the sauna room. The glass and mirror panels are recessed into the wall, or mounted on the HUUM UKU Surface Frame where the wall can't take a recess, and HUUM allows them inside the sauna room if they sit away from the heater, with the top edge no higher than 40" above the floor and at least 20" from any exhaust vent (on the other side of the door if the vent is in the door wall).
| Panel | App control | Where the panel can go | |
|---|---|---|---|
| UKU Local Black | black CLASSIC panel (plastic) | Wall panel only; no app | Outside the sauna room (outdoors, HUUM recommends a weatherproof box) |
| UKU Wi-Fi Black | black CLASSIC panel (plastic) | HUUM app over 2.4 GHz Wi-Fi | Outside the sauna room (outdoors, HUUM recommends a weatherproof box) |
| UKU Wi-Fi Glass | black glass panel | HUUM app over 2.4 GHz Wi-Fi | Inside the sauna room (away from the heater, top edge no higher than 40" above the floor, at least 20" from an exhaust vent) or outside it; recessed, or on the UKU Surface Frame |
| UKU Wi-Fi Mirror | mirror-finish glass panel | HUUM app over 2.4 GHz Wi-Fi | Inside the sauna room (away from the heater, top edge no higher than 40" above the floor, at least 20" from an exhaust vent) or outside it; recessed, or on the UKU Surface Frame |
What's included in the HUUM DROP 9 kW package?
HUUM DROP 9 kW heater
- HUUM DROP electric sauna heater, 9 kW
- Mounting plate and safety bolt
- Reflector
- Heating-element spacers and element retainer
- Heat diverter
- Installation and user manual
HUUM UKU control
- UKU control panel (black plastic, black glass or mirror glass, by the option you choose)
- UKU main module (Wi-Fi models connect to the HUUM app)
- Temperature (safety) sensor, mounted above the heater
- Door sensor with magnet
- Cables for the control panel and sensors
- Installation and user manual
HUUM is moving the UKU from version 4.1 to 4.2. The UKU 4.2 kit adds a bench sensor that reads temperature and humidity at bench height; with it fitted, the highest temperature setting is 194°F (90°C).
HUUM Stones 24
- 4 boxes × 33 lb = 132 lb of rounded 2–4" (5–10 cm) HUUM Stones 24
What you still need
- A heat-resistant power cable, connected by a licensed electrician
- Optional: HUUM Rail D safety rail, DROP drip tray or Flange D embedding flange
HUUM DROP 9 kW heater specifications
| Sauna room volume | 283–460 cu ft (8–13 m³); add 3.3 cu ft per sq ft of uninsulated brick, tile or glass wall |
|---|---|
| Power supply | 240 V, single phase; 37.5 A |
| Circuit breaker / minimum wire | 50 A / 8 AWG |
| Dimensions | 23.3" H × 15.35" W × 13.2" D (590 × 390 × 335 mm) |
| Heater weight | 26.5 lb (about 143 lb with stones) |
| Stones | About 121 lb (55 kg) of 2–4" stones; the package includes 132 lb |
| Heat-up time | About one hour in a well-insulated, correctly sized room (HUUM) |
| Made in | Estonia |
| HUUM part number | H1001072 |
| Warranty | Heater: 3 years private use, 1 year commercial use (HUUM); heating elements, stones and sensors are excluded. UKU: 3 years private use, 1 year commercial use (HUUM); sensors are excluded |
All four DROP sizes, as heaters and as packages, are in the HUUM DROP collection.
HUUM UKU control specifications
| Heater power | Runs the HUUM DROP 9 kW on its own; no extension box needed (a UKU alone runs heaters up to 11 kW) |
|---|---|
| Temperature setting | From 104°F (40°C) up to 230°F (110°C) with the included safety sensor; UKU 4.2 kits also include a bench sensor, and with it fitted the maximum setting is 194°F (90°C) |
| Heating time | 3 or 6 hours for a home sauna (12 hours semi-public, 18 hours public) |
| App control | UKU Wi-Fi options: the HUUM app, over 2.4 GHz Wi-Fi only (802.11 b/g/n). UKU Local: wall panel only, no app |
| Door sensor | Must be installed (HUUM requires it); included in the package |
| Outdoor installation (optional, not included) | The main module goes outside the sauna room. Outdoors, HUUM recommends a box to shield the black panel from the weather, and weatherproof housing can be added for the main module; SaunaLife's Sauna Gear 300 (panel) and 302 (main module) enclosures are offered as add-ons |
| Other safety features | Overheating protection in the included temperature sensor, child lock; the Wi-Fi options also ask for a safety confirmation at the panel before the sauna can be started remotely |
| Sauna light or fan (optional, not included) | The UKU can switch one you add: up to 100 W incandescent lamp or fan, or 50 W LED, at 120 V |
| Steamer (optional, not included) | The UKU can run one you add: 1,250 W at 120 V or 2,500 W at 240 V; steam switches off above 194°F (90°C) |
How is the HUUM DROP 9 kW package installed?
The DROP hangs on the supplied mounting plate and is secured with a safety bolt; with the Flange D it can sit partly inside the bench, with at least 14 3/4" (375 mm) above the bench. The UKU main module goes outside the sauna room (for the Wi-Fi options, where your 2.4 GHz Wi-Fi reaches it), and the door sensor included with the UKU must be installed.
HUUM's DROP manual says the electrical connection must be made by a licensed electrician, on its own circuit, with a heat-resistant power cable (no PVC insulation) and crimped wire ends. Your electrician sizes the breaker and wire from the manual that ships with the heater and your local code.
HUUM DROP 9 kW safety distances
Keep at least these distances from the HUUM DROP 9 kW to walls, benches and anything that can burn. The letters match the drawing.
| A | 5 29/32" (150 mm) |
|---|---|
| B | 27 5/32" (690 mm) |
| C | 19 3/32" (485 mm) |
| D | 8 21/32" (220 mm) |
- A: minimum distance from the heater to a side wall, and to a bench or other obstruction beside or in front of it
- B: minimum width from a side wall to a bench or obstruction on the far side of the heater
- C: minimum distance from the wall behind the heater to a bench or obstruction in front of it
- D: minimum distance from an adjoining corner wall to the edge of the mounting plate
- E: at least 12 7/32" (310 mm) from the floor to the bottom of the mounting plate
- At least 47 1/4" (1,200 mm) from the top of the heater to the ceiling, and 3 15/16" (100 mm) from its bottom to the floor
HUUM requires a sauna room at least 75" tall (79–91" recommended) with 44–51" from the top bench to the ceiling.
Stacking and caring for the stones
Stack the stones by hand so they cover the elements completely; a sparsely filled basket is a fire hazard, and visible elements void the safety distances. HUUM recommends checking the stones after 100 hours of use (or yearly), replacing cracked stones after 200 hours and replacing all of them after 400 hours.
HUUM warranty periods
HUUM's limited warranty (Limited Warranty Terms and Conditions, US, v2) covers new HUUM products bought from HUUM or its authorized dealers, such as Topture, against defects in materials and workmanship. The period starts on the date the end user buys the product.
| HUUM product | Private use | Commercial use |
|---|---|---|
| Electric sauna heaters | 3 years | 1 year |
| Wood-burning sauna stoves | 3 years | 1 year |
| Control units (UKU) | 3 years | 1 year |
| Spare parts | 1 year | 1 year |
HUUM counts as commercial use a business using the product commercially, a private owner using it commercially, or a private owner using it for more than 1,500 hours in 12 months.
What the warranty does not cover
- Heating elements of electric heaters
- HUUM accessories, such as rails, reflectors, flanges, protective bedding and chimney parts
- Door glass and ash grate of wood-burning stoves
- Sauna stones
- All controller sensors
- Damage from a heater that is the wrong size for the room, from unsuitable stones, or from installation, use or maintenance that does not follow HUUM's manuals
What keeps the warranty in effect
- Inspect the product when it arrives and report any visible damage within 7 days, with photos, before installing it.
- Install it following HUUM's manual and local building, electrical and fire codes. An electric product must be connected by a licensed electrician, with proof of the installation.
- Report a defect within 30 days of finding it. For products bought from Topture, report it to Topture, which passes the claim to HUUM and helps with troubleshooting.
