The Harvia 20 ES Pro is a wood-burning sauna stove designed for cottage and home saunas that want the authentic experience of a wood-fired session. A fixed 20-liter front-mounted water tank heats water as the stove warms the room, so hot water is ready when you need it. The Pro model features a graphite black outer casing, stainless steel front panel, and a large glass door that lets you watch the fire during your session. With a generous stone compartment and robust construction, the 20 ES Pro delivers reliable, traditional sauna performance.
Why Customers Choose This Stove
- Integrated 20-liter water tank heats water simultaneously with the sauna room
- Large glass door provides a view of the fire during sessions
- Graphite black casing with stainless steel front for a premium, durable finish
- Generous stone compartment for soft, even steam generation
- No electricity required — fully wood-fired for off-grid and cottage use
- Designed and manufactured in Finland by Harvia
Product Highlights
Integrated 20-Liter Water Tank
The fixed front-mounted water tank holds 20 liters and heats water passively as the stove operates. A side tap allows easy water access from either side of the stove.
Large Glass Door
The robust glass door on the Pro model allows bathers to view the fire during sessions. It adds a visual element to the sauna experience while maintaining heat efficiency.
Graphite Black and Stainless Steel Finish
The outer casing is finished in graphite black with a stainless steel front panel. This combination is built to withstand the high-heat conditions of regular sauna use.
Large Stone Compartment
The stove accommodates a substantial volume of sauna stones (minimum 88 lbs required), supporting traditional löyly and consistent steam throughout the session.
Wood-Fired, No Electricity Required
The 20 ES Pro operates entirely on wood fuel, making it well-suited for off-grid cabins, cottages, and sauna rooms without electrical infrastructure.
Finnish Engineering
Harvia has manufactured sauna equipment in Finland since 1950. The 20 ES Pro is built to the same standards of durability and performance as the broader Harvia product line.
Specifications
| Model | Harvia 20 ES Pro |
|---|---|
| Fuel Type | Wood-Burning |
| Water Tank Capacity | 20 liters (integrated, front-mounted) |
| Water Tank Tap | Side-mounted, configurable left or right |
| Minimum Stone Load | 88 lbs |
| Outer Casing | Graphite black with stainless steel front |
| Door Type | Glass door |
| Electricity Required | No |
| Chimney Connection | Required (see chimney installation manual) |
| Country of Origin | Finland |
| SKU | WKPR20RSM |
What's in the Box
- Harvia 20 ES Pro Wood-Burning Sauna Stove
- Integrated 20-Liter Water Tank with Side Tap
- Operations and Installation Manual
Ideal For
- Cottage and cabin saunas where wood-fired heating is preferred
- Off-grid sauna installations without access to electrical infrastructure
- Users who want an integrated hot water supply during sauna sessions
- Sauna rooms where a traditional, authentic wood-burning experience is the priority
- Homeowners seeking a durable, long-term sauna heating solution with minimal mechanical components
Important Information
- A properly installed chimney system is required for safe operation. Refer to the chimney installation manual included with this product and consult a qualified installer.
- A minimum of 88 lbs of sauna stones must be loaded before use. Sauna stones are sold separately. Use only stones rated for sauna use — do not use river rocks or decorative stones.
- Maintain required clearance distances from combustible walls, ceilings, and materials as specified in the installation manual.
- This stove requires a dedicated, non-combustible floor protection area beneath and around the unit. Consult local building codes for specific requirements.
- Never leave a wood-burning stove unattended while in operation.
- Use only dry, seasoned firewood. Do not burn treated wood, garbage, or accelerants.
- Review the full operations and chimney installation manuals before beginning installation or first use.
Frequently Asked Questions
Does the 20 ES Pro require electricity to operate?
No. The Harvia 20 ES Pro is a fully wood-burning stove and does not require any electrical connection. This makes it suitable for off-grid cabins, cottages, and sauna rooms without electrical infrastructure.
What does the integrated water tank do?
The fixed 20-liter water tank is mounted on the front of the stove and heats water passively as the stove operates. By the time the sauna room is ready for use, the water in the tank is also heated. A side tap provides easy access to the hot water.
Are sauna stones included?
Sauna stones are not included. A minimum of 88 lbs of sauna stones is required before the stove can be used. Use only stones rated for sauna use — do not use river rocks or decorative stones, as they can crack under high heat.
Does this stove require a chimney?
Yes. A properly installed chimney system is required for safe operation of any wood-burning sauna stove. A chimney installation manual is available for reference. Consult a qualified installer to ensure your chimney meets local building and fire codes.
What type of wood should I use?
Use only dry, seasoned hardwood firewood. Do not burn treated or painted wood, garbage, cardboard, or any accelerants. Burning unsuitable materials can damage the stove and create safety hazards.
Can I pour water over the stones on this stove?
Yes. The large stone compartment on the 20 ES Pro supports traditional löyly — pouring small amounts of water over heated stones to produce steam. Follow the guidelines in the operations manual for safe stone use and water quantities.
What is the difference between the standard and Pro model?
The Pro model features a graphite black outer casing, a stainless steel front panel, and a large glass door that allows you to view the fire during your session. These features distinguish it from the standard model in both appearance and finish quality.
The Harvia 20 ES Pro is a dependable wood-burning sauna stove for cottage and home sauna rooms that prioritize a traditional, authentic experience. If you have questions about sizing, chimney requirements, or installation, contact us before ordering — we're here to help you get the right stove for your space.
Sauna use is a personal wellness practice. Consult a qualified healthcare provider before use if you have any medical conditions or concerns.