Best Wifi Sauna Heater Options for Home Saunas

Choosing the right WiFi-enabled sauna heater helps you preheat, monitor, and control your sauna remotely for convenience and safety. The table below summarizes five top heater models selected for different sauna sizes and control features.

Product Power / Fit Connectivity / Control
HUUM Drop Series Sauna Heater (9 kW) 9 kW — medium rooms UKU WiFi Control
HUUM Hive 18 kW Sauna Heater 18 kW — large rooms (636–1236 cu ft) UKU WiFi Control (Glass)
HUUM Cliff 9.0 kW Sauna Heater 9 kW — up to 524 cu ft UKU WiFi Control
HUUM Steel Mini 3.5 kW Sauna Heater 3.5 kW — up to 212 cu ft UKU WiFi Control
Finlandia/Harvia FLB-80/KIP-80B 8 kW Sauna Heater 8 kW — up to 425 cu ft Standard electric control (compatible with sauna controls)

HUUM Drop Series Sauna Heater With UKU WiFi Control (9kW – Black)

HUUM Drop Series Sauna Heater

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The HUUM Drop combines a distinctive water-drop design with efficient heating architecture. It uses direct contact between stones and heating elements, which increases exposed stone surface for a milder, longer-lasting heat profile. Constructed from stainless steel with industrial-grade elements, the unit is wall-mounted and compact with dimensions of 15.4″W x 13.2″D x 23.3″H.

Included are sauna stones and the UKU WiFi control for remote scheduling and temperature management. The design emphasizes even heat distribution and user-friendly integration into modern sauna rooms. This model suits homeowners seeking a balance of design, performance, and remote operation.

HUUM Hive 18 kW Sauna Heater With UKU WiFi Control (Glass)

HUUM Hive 18 kW Sauna Heater

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The HUUM Hive 18 kW is designed for larger sauna volumes, specified for rooms from approximately 636 to 1236 cubic feet. It features the same stone-to-element contact concept for sustained, mild heat. The model ships with around 550 pounds of rounded olivine stones, emphasizing thermal mass and heat retention.

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This heater’s glass-front design and UKU WiFi Control provide both aesthetic integration and remote functionality. Built in stainless steel, the Hive prioritizes longevity and even heat distribution for public or home installations requiring higher output and WiFi scheduling capability.

HUUM Cliff 9.0 kW Sauna Heater With UKU WiFi Control (Black)

HUUM Cliff 9.0 kW Sauna Heater

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The HUUM Cliff 9 kW is specified for saunas up to around 524 cubic feet and includes 165 pounds of 1–2″ rounded olivine stones. It operates at 240V/1PH and pairs with the UKU WiFi control for remote temperature and schedule management.

The Cliff emphasizes simple installation and reliable heating performance via durable stainless steel construction and robust element design. It is positioned for medium-sized home saunas where remote control and consistent stone-based heat are priorities.

HUUM Steel Mini 3.5 kW Sauna Heater With UKU WiFi Control (Black)

HUUM Steel Mini 3.5 kW Sauna Heater

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The HUUM Steel Mini is a compact option rated at 3.5 kW for smaller sauna volumes up to about 212 cubic feet. It includes approximately 132 pounds of rounded olivine stones and a UKU WiFi control for remote operation. Designed for 240V/1PH electrical supply, the unit targets small home sauna cabins and personal wellness spaces.

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Steel Mini emphasizes space efficiency and quick responsiveness while retaining stone-based heat characteristics. Stainless steel construction supports durability in humid, high-temperature environments, and the WiFi control enables programming and remote preheating.

Finlandia/Harvia FLB-80/KIP-80B Sauna Heater 8 kW

Finlandia Harvia FLB-80 KIP-80B Sauna Heater

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The Finlandia/Harvia FLB-80 is an 8 kW electric sauna heater designed for up to approximately 425 cubic feet. It features stainless interior elements and heavy-duty construction typical of established sauna manufacturers. This model is compatible with conventional sauna control systems and can be integrated with timed or digital controllers.

While this particular listing does not include integrated WiFi, Finlandia heaters are widely used with external controls and third-party WiFi-capable controllers for remote operation. The FLB-80 emphasizes reliability and industry-standard performance for medium-sized saunas.

Buying Guide: How To Choose The Right WiFi Sauna Heater

Sauna Room Size And Heater Power

Match heater wattage to sauna cubic footage. A general guide: 3–4 kW for small rooms (~100–250 cu ft), 5–9 kW for medium rooms (~250–600 cu ft), and 10–18 kW for large rooms or commercial spaces. Verify manufacturer recommendations for cubic-foot ranges to ensure adequate heat-up time and stable temperatures.

Stone-Based Heaters Vs. Infrared Or Panel Heaters

Stone-based electric heaters provide traditional steam bursts when water is poured over stones, with thermal mass delivering sustained heat. Infrared panels heat objects and occupants directly without steam. Choose stone heaters for traditional experience; choose infrared for lower-temperature, targeted heating and faster start-up.

WiFi Control Features

Look for secure, dedicated sauna controls (like UKU) that offer scheduling, remote temperature monitoring, and app-based controls. Confirm whether the WiFi control integrates with existing smart-home platforms and whether it requires external hubs. Remote scheduling enables preheating before use, improving convenience.

Construction Materials And Durability

Stainless steel housings and industrial-grade heating elements resist corrosion in humid sauna environments. Check stone volume and quality—rounded olivine stones are common for consistent heat retention. Wall-mounted designs save floor space but check clearance and installation requirements.

Installation And Electrical Requirements

Confirm voltage (110V/120V vs 220V/240V), phase, and amperage requirements. Larger heaters often require dedicated circuits and gauge-specific wiring (for example, 8-gauge for higher amperage). Ensure a qualified electrician inspects or performs wiring and that the installation complies with local codes.

Heat Distribution And Stone Mass

More stone mass gives slower, more sustained heat and better steam generation. Heaters that maximize stone exposure to elements tend to produce milder, longer-lasting temperatures. Consider how often you use water on stones—stone capacity affects steam intensity and maintenance frequency.

Control Placement And Safety Features

Controls should be located outside the sauna per many recommendations for safety and accurate scheduling. Verify built-in safety features such as overheat protection and certified thermostats. For WiFi units, ensure the control unit’s rating is suitable for sauna temperatures.

Maintenance And Parts Availability

Check availability of replacement stones, elements, and control modules. Stainless steel exteriors and replaceable heating elements reduce long-term maintenance costs. Review manufacturer support and warranty coverage for electronics and heating components.

Tips for Getting the Best HVAC Prices

  1. Prioritize Quality Over Cost
    The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money.
  2. Check for Rebates
    Always research current rebates and incentives — they can significantly reduce your overall cost.
  3. Compare Multiple Quotes
    Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors.
  4. Negotiate Smartly
    Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.

Comparison Perspectives

  • Performance vs. Size: Larger kW ratings heat faster but need proper wiring. Match to the room’s cubic feet.
  • Remote Convenience vs. Simplicity: WiFi controls enable preheating and scheduling; traditional non-WiFi units may be simpler and integrate with third-party controllers.
  • Design vs. Thermal Mass: Aesthetic glass or drop designs may change stone placement; prioritize stone mass for intense steam and heat retention.
  • Commercial vs. Home Use: Heavy-duty units (higher kW, large stone loads) suit commercial or shared saunas; compact units suit private home saunas.

Final Checklist Before Purchase

  • Measure sauna cubic feet and compare to manufacturer recommendations.
  • Confirm home electrical capacity, circuit type, and required wire gauge.
  • Decide on stone-based heat vs. infrared depending on desired sauna experience.
  • Ensure the WiFi control’s app and security model meet expectations.
  • Check warranty, spare part availability, and local installer recommendations.

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