Harvia Club K12.5G 12.5 kW Electric Sauna Heater
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The Harvia Club K12.5G is a 12.5 kW floor-standing electric sauna heater for rooms of 494–742 adjusted cubic feet running on 208VAC 3PH or 240VAC 1PH. It takes 132 lb of 5-10cm sauna stones (sold separately). It requires a separate Harvia control unit, sold separately.
The Harvia Club is the series Harvia builds for saunas that run all day. The chassis is a wide, low stainless steel floor unit with a deep stone bed and a protective outer casing designed to survive the traffic of a hotel, gym or club changing room where the heater is on for twelve hours at a stretch.
- Deluxe stainless steel interior and exterior
- Multi-layer construction for cooler surface temperature and greater safety
- Rocks have direct contact with electric elements to filter harsh heat
- Optional 24-Hour time clock
- Built for continuous commercial duty cycles
K12.5G Sauna Heater, Installation and Operation Manual
These are not included with the heater. You need them before the sauna will run.
Sauna Stones132 lb — Harvia specifies 3 × 44 lb boxes of Harvia AC3000. Never run the unit empty. Control Unit
Harvia Xenio CX45. Mounts outside the hot room. This heater cannot run without one. Electrical
A dedicated hardwired circuit, installed by a licensed electrician.
| Harvia Part Number | HRKGU12CU1UL / HRKGU12CU3UL |
| Power Output | 12.5 kW |
| Sauna Room Volume | 494–742 adjusted cu ft |
| Stone Capacity | 132 lbs (59.9 kg) |
| Recommended Stones | Harvia AC3000 |
| Maximum Temperature | 194 °F (90 °C) |
| Color / Finish | Stainless Steel |
| Material | Steel |
| Dimensions (W × D × H) | 19.9" (505mm) × 16.9" (429mm) × 27.6" (701mm) |
| Weight (Empty) | 56.9 lbs (25.8 kg) |
| Weight Loaded with Stones | approx. 188 lbs |
| Installation | Floor Mount |
| Controls | Not included — requires Harvia Xenio CX45 |
| Certification | CE, EAC, ETL |
| Warranty | 2 years (consumer use, +1 year if registered with Harvia); 2 years (commercial use) |
| Ships | Parcel |
| Made In | Finland |
| Part Number | Power | Voltage | Phase | Rated Amps | Line Fuse |
|---|---|---|---|---|---|
| HRKGU12CU1UL | 12.6 kW | 240VAC | 1PH | 52.7 A | 2x40A |
| HRKGU12CU3UL | 12.3 kW | 208VAC | 3PH | 34.1 A | 40A |
Hardwired on a dedicated circuit. Not a plug-in appliance. Who Installs It
A licensed electrician sizes the breaker and conductors from the nameplate and installation manual under the current NEC. Circuits
Fused as 2x40A, so this model needs two circuits, not one.
The Harvia Club K12.5G is rated for 494–742 adjusted cubic feet.
Adjusted cubic feet = width × depth × height in feet, plus 45 cu ft for every square foot of glass, tile, concrete or stone, plus 15 cu ft for every square foot of exposed log wall. A 6 × 7 ft room with a 7 ft ceiling is 294 raw cu ft — add a full-glass door and it becomes 834. Always size to the adjusted number.
| Model | Output | Room Volume | Stones | Rated Amps |
|---|---|---|---|---|
| Club K10G | 10 kW | 388–600 cu ft | 132 lbs | 41.7 |
| Club K12.5G | 12.5 kW | 494–742 cu ft | 132 lbs | 52.7 |
| Club K15G | 15 kW | 600–989 cu ft | 132 lbs | 61.7 |
- Mount to the clearances given in the installation manual. The temperature sensor goes on the wall above the heater, at the height the manual specifies.
- Load the stones loosely by hand, largest at the bottom, so air moves freely between them. Never run the heater with an empty or tightly packed stone space.
- Pour small ladlefuls of clean water onto the hot stones only — never onto the body, elements or controls. Mix any scented oil into the bucket first.
- Re-stack the stones once a year and replace any that have cracked or crumbled.
- Stones ship separately on their own freight because of the weight.
Does the Harvia Club K12.5G include a control unit?
No, and it cannot run without one. It needs a separate Harvia control unit, sold separately: Harvia Xenio CX45. The control mounts outside the hot room, which is what lets you preheat the sauna before you walk in.
Can the Harvia Club K12.5G be plugged into a normal outlet?
No. It is a hardwired appliance on its own dedicated circuit, rated at 52.7 A. A licensed electrician sizes the breaker and conductors from the nameplate and installation manual.
How long does the Harvia Club K12.5G take to heat up?
Harvia does not publish a figure. A correctly sized, well-insulated room is usually ready in 30 to 60 minutes. Consistently longer than an hour normally means the heater is undersized for the room's adjusted cubic feet.
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