Sauna Heater Buying Guide
Choosing the right sauna heater is one of the most important parts of building or buying a sauna. The heater determines how quickly your sauna heats up, how evenly it holds temperature, and what kind of sauna experience you get. This guide covers the different types of sauna heaters, how to choose the right heater size, and what to consider before you buy.
In This Guide
What Does a Sauna Heater Do?
A sauna heater is the heart of a traditional sauna. Its job is to heat the sauna room to the desired temperature and maintain that heat consistently throughout your session. In most traditional saunas, the heater also warms sauna stones, which can be sprinkled with water to create steam and increase humidity.
A quality sauna heater affects much more than temperature alone. It also impacts heat-up time, comfort, the overall feel of the sauna, and how authentic the experience is. Choosing the right heater ensures your sauna performs the way it should for years to come.
Types of Sauna Heaters
The first step is choosing the type of sauna heater that best fits your sauna and your preferred experience.
Electric Sauna Heaters
Electric sauna heaters are the most common choice for residential saunas. They are convenient, easy to operate, and available in a wide range of sizes and styles. Many modern electric heaters can be paired with built-in or external controls, and some models offer Wi-Fi functionality for added convenience.
Browse our collection of electric sauna heaters here.
- Easy to use and maintain
- Ideal for most indoor saunas
- Available in wall-mounted and floor-standing designs
- Excellent for consistent, reliable heat
Wood-Burning Sauna Heaters
Wood-burning sauna heaters offer a more traditional sauna experience and are especially popular in outdoor saunas and cottage settings. They create a unique atmosphere and authentic heat, but they require more hands-on operation and proper venting.
Explore our wood sauna heaters and stoves here.
- Authentic traditional sauna feel
- Popular for outdoor saunas and off-grid settings
- No electrical supply required for the heater itself
- Requires chimney and proper installation planning
Sauna Heater and Control Packages
Some sauna heaters are sold as complete packages that include matching controls and sometimes additional accessories. These can be a smart choice for buyers who want compatibility, convenience, and a simpler installation process.
Shop our sauna heater control packages here.
- Convenient all-in-one solution
- Helps ensure heater and control compatibility
- Great for streamlined planning and installation
Sauna Heater Size Chart
Heater size is one of the most important decisions when buying a sauna heater. A heater that is too small may struggle to heat the room properly, while a heater that is too large may be unnecessary for the space. In general, heater size is selected based on the cubic footage of the sauna room.
The chart below provides a general guideline for common electric sauna heater sizing:
| Sauna Room Size | Recommended Heater Size |
|---|---|
| Up to 175 cu. ft. | 4.5kW |
| 175–310 cu. ft. | 6kW |
| 310–425 cu. ft. | 8kW |
| 425–550 cu. ft. | 9kW |
| 550–675 cu. ft. | 10.5kW |
| 675–850 cu. ft. | 12kW |
Keep in mind that glass surfaces, stone walls, and other non-insulated materials can increase the effective heating requirement. Always check the manufacturer's sizing recommendations for the exact heater you are considering.
Electric vs Wood-Burning Sauna Heaters
Both electric and wood-burning sauna heaters can provide an excellent sauna experience, but they suit different types of spaces and buyers.
| Feature | Electric Heater | Wood-Burning Heater |
|---|---|---|
| Ease of Use | Very convenient | More hands-on |
| Installation | Requires electrical planning | Requires chimney and venting |
| Best For | Most indoor residential saunas | Outdoor, cottage, and traditional settings |
| Experience | Simple and consistent | Rustic and authentic |
What to Consider Before You Buy
1. Sauna Room Size
The cubic footage of your sauna room is the starting point for selecting the right heater size. This is the most important factor in getting proper performance.
2. Indoor or Outdoor Installation
Think about where the heater will be used. Electric heaters are often the easiest fit for indoor saunas, while wood-burning heaters are a strong choice for outdoor and cottage settings.
3. Controls and Features
Some heaters have built-in controls, while others require separate control units. Buyers may also want features like delayed start, digital displays, or remote and Wi-Fi functionality depending on the model.
4. Installation Requirements
Proper installation matters. Electric sauna heaters may require dedicated electrical service, while wood-burning heaters require clearance planning, chimney components, and proper ventilation. Always follow the manufacturer's installation instructions and use qualified professionals where required.
5. Design and Stone Capacity
Sauna heaters come in a range of styles, from compact wall-mounted units to modern floor-standing tower heaters with large stone capacities. Larger stone volumes can create a softer, more even heat and allow for a more luxurious steam experience.
Which Sauna Heater Is Right for You?
The best sauna heater depends on your sauna size, your installation setup, and the type of experience you want.
- Choose an electric sauna heater if you want convenient, reliable, and easy-to-control heat.
- Choose a wood-burning sauna heater if you want a more traditional sauna experience, especially in an outdoor or cottage setting.
- Choose a tower-style heater if you want a modern design and high stone capacity.
- Choose a heater package with controls if you want a simpler buying and installation process.
Shop All Sauna Heaters
Explore our full collection of premium sauna heaters and controls to find the right solution for your indoor or outdoor sauna.
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