Finnleo Laava 10.5 kW (208V, 3PH) Sauna Heater

The Finnleo Laava 10.5 kW (208V, 3-Phase) is a high-output, floor-standing sauna heater engineered for extra-large residential and standard commercial installations. Built by Sauna360 in Cokato, Minnesota, the Laava concentrates powerful, even heat into a compact footprint, making it an ideal choice for larger sauna rooms where three-phase power is available. This 208V/3PH configuration is popular in commercial facilities, spas, fitness centers, and multi-unit residential settings where three-phase electrical service is standard.

Designed for durability and consistent thermal performance, the Laava heats a generous bed of sauna rocks to deliver deep, radiant warmth throughout the room. Its floor-standing construction frees up wall and bench space, offers a lower center of gravity for stability, and suits sauna rooms ranging from approximately 390 to 950 cubic feet, depending on heater output and room configuration.

Key Features

• Floor-standing construction with a compact footprint relative to heating output
• Approximately 132 lb sauna rock capacity for strong, steady heat retention
• 10.5 kW heating output, sized for extra-large residential and standard commercial saunas (approx. 390–950 cubic feet)
• 208V, 3-Phase electrical configuration, suited for commercial and multi-phase power environments
• Also available in 10.5, 12.0, and 14.4 kW outputs, in single-phase or three-phase configurations
• Stainless steel heater guard/cage for safety and durability
• Compatible with the SaunaLogic2® (SL2-C) control system for precise temperature and time management
• Sauna rocks included with every configuration
• Available as Heater Only, or in a complete package with control and contactor box

Construction & Design

The Laava features a rugged, floor-mounted heater body with a protective rock cage designed to hold a substantial volume of sauna rocks — roughly 132 lb — allowing heat to radiate evenly while maintaining the authentic, humid warmth of traditional Finnish sauna bathing. The heater's compact profile minimizes floor space usage, an important consideration for both commercial installations with tight footprints and larger residential saunas that still require significant heating capacity. Stainless steel construction on the heater guard provides long-term durability in the high-heat, high-humidity sauna environment.

Electrical Specifications

• Model: Laava
• Output: 10.5 kW
• Voltage: 208V
• Phase: 3-Phase (3PH)
• Installation type: Floor-standing
• Rock capacity: ~132 lb
• Recommended room size: ~390–950 cubic feet (size varies with insulation, ceiling height, and door/window configuration)

Controls & Compatibility

The Laava requires an SL2-C control and a matching contactor box rated for 208V 3-Phase operation. Customers can select Heater Only if they already own compatible controls, or choose a complete package that bundles the SL2-C control — available in 60-minute mechanical or 24-hour Wi-Fi-enabled versions — along with the correctly rated contactor box for this voltage and phase configuration. The SaunaLogic2® ecosystem allows users to manage heater operation, lighting, and audio from a single connected app experience.

What's Included

• Finnleo Laava 10.5 kW heater unit (208V, 3PH)
• Sauna rocks (approximately 132 lb capacity, included with every configuration)
• Stainless steel heater guard
• Installation and owner's manual
• Factory warranty coverage
• Optional (package configurations): SL2-C control unit (60-minute or 24-hour Wi-Fi) and matching 208V/3PH-rated contactor box

Note: The SL2-C control and contactor box are required for operation but are not included with the Heater Only option — they must be purchased separately or as part of a complete package.

Why Buy Finnleo From Us

Finnleo, manufactured by Sauna360 in Cokato, Minnesota, is one of the most trusted names in authentic Finnish sauna heating. Every Laava heater is safety-tested and listed for use in North America, and integrates with the SaunaLogic2® ecosystem to unify heater, lighting, and audio control into one app-based experience. As an authorized Finnleo dealer, we offer full factory warranty support, expert sizing guidance for 208V/3PH commercial and residential installations, and dedicated assistance before and after your purchase. Have questions about voltage compatibility, room sizing, or lead times? Contact a sauna specialist to ensure your Laava heater is specified correctly the first time.