Top 4 Sauna Heaters for Small Saunas (Expert Picks for 2025)

If you’re building or upgrading a compact sauna space, choosing the right heater is crucial. Small sauna heaters need to be powerful yet space-efficient, and ideally offer modern features like WiFi control and fast heat-up times.

We’ve curated our top 4 picks for small sauna heaters that balance performance, style, and smart features—all tested and trusted by sauna enthusiasts.

Need help choosing the right size? Use our Sauna Heater Size Calculator or explore our full Sauna Heater Collection.

1. Harvia KIP Electric Heater Package

The Harvia KIP is a classic wall-mounted heater, perfect for home saunas between 84 and 425 cu. ft. It features a high stone capacity for rich steam, quick heating, and reliable stainless steel construction. This version includes a Xenio digital controller and WiFi module, allowing you to control your sauna remotely via the MyHarvia app.

• Wall-mounted, compact design
• For rooms from 84–425 cu. ft.
• Power options from 3kW to 8kW
• Digital control + WiFi enabled
• Heats in 20–30 minutes

2. Harvia Spirit Electric Heater Package

Inspired by the natural beauty of stone and fire, the Harvia Spirit is a design-forward wall-mounted heater made for smaller saunas. Its unique curved body and rounded stone basket offer a gentler, more enveloping heat. Integrated with the MyHarvia app, this heater delivers a full-featured smart sauna experience.

• Soft steam with rounded stones
• For rooms from 177–431 cu. ft.
• WiFi & digital control included
• Integrated overheat and safety protection
• Stone Capacity: 110 lbs

3. Harvia The Wall Electric Heater

The Wall is a modern, space-saving electric sauna heater with built-in controls—making it ideal for simple, plug-and-play installations. It features superior airflow, adjustable side-mounted controls, and a sleek Scandinavian black steel finish. It's great for smaller saunas where every inch counts.

• Wall-mounted design with left/right control placement
• Built-in control panel (no separate controller needed)
• For sauna rooms from 141–425 cu. ft.
• Options in 6kW and 8kW
• Delayed start timer and illuminated switches

4. HUUM CLIFF Electric Sauna Heater Package

If you want sleek, modern, and powerful in a small footprint, the HUUM CLIFF delivers. This floor-mounted heater features vertical design with minimal safety clearance, making it ideal for tight layouts. The included UKU WiFi controller allows remote scheduling, temperature control, and full smart sauna integration.

• Vertical, freestanding space-saving design
• For rooms from 176–600 cu. ft.
• Settable temperature up to 230°F
• Stone capacity: 330 lbs
• Fast heat-up + programmable schedule

Final Thoughts

Each of these heaters is built to deliver performance, safety, and luxury in small sauna spaces. Whether you want the minimalist aesthetic of HUUM CLIFF, the built-in simplicity of Harvia The Wall, or the natural elegance of the Harvia Spirit, there’s a perfect fit for your layout and lifestyle.

Still unsure? Try our Heater Size Calculator or use our Custom Sauna Design Tool for personalized guidance.

Don't forget: Tariffs on European sauna brands may go into effect soon. Order now to lock in today’s pricing while inventory lasts!

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