How To Choose The Perfect Sauna Heater For Your Sauna

A sauna heater is the heart of any sauna. It’s responsible not only for heating the space but also for generating steam—or löyly—when water is poured over the hot stones. The right heater makes all the difference in delivering a consistent, enjoyable sauna experience.

That said, even the best sauna heater can’t make up for a poorly designed or improperly constructed sauna room. A well-thought-out combination of layout, materials, ventilation, and heating is key.

In this guide, we’ll walk you through the different types of sauna heaters, their benefits and drawbacks, and how to choose the right one for your space, lifestyle, and energy source.

Types of Sauna Heaters

There are three main types of sauna heaters:

• Electric sauna heaters

• Wood-burning sauna stoves

• Gas sauna heaters

Electric heaters are by far the most popular in the U.S., followed by wood-burning models. Gas sauna heaters, while fast and energy efficient, remain extremely rare and are used in less than 1% of U.S. installations.

Let’s take a closer look at each.

Electric Sauna Heaters

Electric heaters are the most convenient and widely used type of sauna heater. Most models allow you to control the heat with a dial, digital control panel, or even remotely using a smartphone app.

Advantages:

• Remote operation via control panel or app

• Easy and intuitive to use

• Precise temperature control

• Programmable scheduling

• Clean and maintenance-free operation

Disadvantages:

• Requires access to a 240V power supply

• Must be installed by a licensed electrician

• Not suitable for off-grid or remote locations

• Sensitive to voltage issues if the sauna is improperly built

Top Electric Sauna Heater Picks

1. Harvia Virta Series

Reliable, attractive, and performance-focused. The Harvia Virta series features a sleek black casing and stainless steel construction that remains cool to the touch. Paired with the Xenio WiFi control panel, you can operate it remotely with ease. These units are known for their dependability and even heat distribution.

2. HUUM HIVE Series

One of the most design-forward electric heaters on the market. The HUUM HIVE Series offers excellent heat retention, operates at higher temperatures (up to 230°F), and features an open-frame design for optimal airflow. The large stone capacity provides soft steam, and the heater can be placed anywhere in the sauna—center, corner, or even built into the bench layout.

Wood-Burning Sauna Stoves

Wood-fired stoves offer the most traditional and authentic sauna experience. They’re often the heater of choice for outdoor saunas and remote locations without reliable access to electricity.

Advantages:

• Traditional experience with natural flame and scent

• Great ventilation and heat circulation

• Can be easier to install in certain outdoor saunas

• Off-grid compatible

Disadvantages:

• Requires a constant supply of dry firewood

• Longer heat-up times compared to electric units

• No precise temperature control

• Typically not suitable for indoor installations in modern homes

Top Wood Stove Picks

Harvia Legend GreenFlame

A robust wood stove with an elegant design. It offers a large stone capacity for long-lasting steam and radiant heat. The firebox features a wide glass window, allowing you to enjoy the calming flicker of flames. GreenFlame technology reduces emissions while maximizing combustion efficiency.

HUUM Hive Heat

Combining a clean Scandinavian look with high-performance output, the HUUM Hive Heat provides consistent heat with a large stone basket. The open design promotes even airflow, and its stylish form enhances the ambiance of any sauna.

Gas Sauna Heaters

Gas heaters are the least common option but offer extremely fast heat-up times and long-term energy efficiency. However, installation is more complex and requires a gas line and proper venting.

Advantages:

• Fast heating times

• Energy efficient

• Reliable for commercial use where electric infrastructure is limited

Disadvantages:

• Requires a gas line

• Limited control options

• Less traditional sauna feel

• Minimal availability and limited style options

If your space already has gas service and can’t support the electrical requirements of an electric heater—and firewood isn’t practical—a gas heater may be a viable option.

Note: Scandia and Torch are among the only known manufacturers offering gas sauna heaters.

What to Look for in a Sauna Heater

A high-quality sauna heater will have:

• High thermal mass: More stones = more consistent and softer steam

• Durable materials: Stainless steel, quality elements, and UL certification

• Smart controls: Remote operation, Wi-Fi, and timer functionality

• Design flexibility: Freestanding or wall-mounted options, integrated or external controls

• Safety features: Overheat protection, cool-touch exterior, and auto shutoff

Most Trusted Sauna Heater Brands

We recommend choosing from these top-tier manufacturers:

• Harvia

• HUUM

• IKI

• Saunum

• Scandia (for gas heaters)

Best Sauna Heater Styles

• Open basket heaters – For high airflow and lots of stone capacity

• Closed basket heaters – For focused radiant heat

• Freestanding heaters – For flexible placement

• Wall-mounted heaters – For compact saunas

• Integrated control heaters – Simple and all-in-one

• External control heaters – Ideal for tech-savvy users

• Wood-burning stoves – For authentic, off-grid sauna experiences

Important Electrical Considerations

Most electric sauna heaters in the U.S. require:

• 240V / 1PH power supply

• Proper amperage and circuit breakers based on kW rating

• Professional installation by a licensed electrician

⚠️ Important Note:
This article is intended for general guidance only and is not a substitute for professional electrical advice. Please consult a licensed electrician to confirm whether your electrical system can accommodate your chosen sauna heater.

Final Thoughts: Choose What’s Right for You

Whether you’re leaning toward a modern electric unit, a traditional wood stove, or a less common gas heater, your final choice should be based on:

• The size and location of your sauna

• Your power or fuel availability

• Your desired level of convenience and control

• Your aesthetic preferences

Still not sure? Let us help.

Need Expert Advice?

At The Sauna Store, we’re passionate about helping you choose the perfect heater for your sauna. Reach out to one of our technical experts for personalized recommendations based on your sauna’s size, location, and electrical setup.

📧 Email: info@thesaunastore.com
📞 Call: 1-906-370-4633
📍 Hours: Monday–Friday, 9 AM–5 PM EST