K3 sauna control unit

K3-9-N

The Harvia K3 is a sleek, all-in-one control unit built for effortless sauna enjoyment. Precisely adjust your temperature from 40 °C to 125 °C and set your session with an easy-to-read digital display in 15-minute intervals. A built-in overheat limiter and 6-hour heating limit keep every session safe, while the light connection adds a finishing touch to your sauna ambiance. For the ultimate experience, the K3 supports humidity mode with a powerful 3 kW evaporator, letting you fine-tune the climate anywhere from 40 °C to 65 °C. The two-sensor system, low-water indicator, and acoustic signal ensure precise, worry-free control — so you can focus on what matters most: relaxing.

Calculate your sauna volume

Find your nearest dealer

The best sauna and spa experiences are waiting for you.

Item number Harvia: K3-9-N
Type code: K3-9
Electrical number (STK): 8264866
Certificates: CE EAC

One-piece housing with integrated control unit and two-sensor system
Temperature progressively adjustable from 40 °C to 125 °C
Temperature sensor and overheat limiter for the heater
Heating time limit 6 hours
Lighting connection
Digital display: Enter the preset time (in 15 minute intervals)
Humidity operation, selectable temperature from 40 °C to 65 °C
Evaporator output: 3 kW
Low-water display, acoustic signal, temperature and humidity mode display

Technical

Features

Model	K3-9-N
User group	Households
Power output	9 kW
Control type	Controlled by manual switches
Installation location	Wall
Installation orientation	Horizontally
Color	White
Main material	Plastic
Temperature adjustment range ˚C, min.	103 °F
Temperature adjustment range ˚C, max.	256 °F
Ambient temperature min	13 °F
Ambient temperature max	103 °F
Storage temperature min	-14 °F
Storage temperature max	157 °F
Use environment	Interior - dry area

Measurements

Model	K3-9-N
Height	7.68 in
Width	9.37 in
Depth	3.54 in
Control panel width	7.68 in
Control panel depth	9.37 in
Control panel height	3.54 in

Weights

Model	K3-9-N
Net weight	3.8 lbs
Control panel weight	2.5 lbs

Electrical

Model	K3-9-N
IP Class (like: IPX4)	IPX4
Electrical Frequency	50 Hz
Max. Connection power for light	100 W
Electrical group options	400V 3N~

Logistics

Model	K3-9-N
EAN	9120053860046
Electrical number (STK)	8264866
Customs tariff number EU	85371098
Product unit (pcs, meters etc.)	PCS
Sales unit	pcs
Packaging materials	CardboardPlastic bag
Package height	4.65 in
Package width	11.42 in
Package depth	13.39 in
Gross weight	4.6 lbs
Cardboard weight	0.8 lbs
Plastic weight	0 lbs

Please check the product manual for updated information before use.