Harvia AC3020 – Sauna Heater Stones (10–15 cm Split Face, 44 lbs)

Description:

The Harvia AC3020 Sauna Heater Stones are the authentic choice for achieving the perfect sauna atmosphere. Each natural split-face stone is carefully selected for optimal heat retention, steam production, and airflow. Designed specifically for Harvia electric heaters and wood-burning stoves, these 10–15 cm stones ensure long-lasting performance and even heat distribution.

Angular, split-face stones allow loose placement for superior air circulation — a key factor in extending heating-element life and maintaining consistent performance. Unlike smooth or rounded stones, Harvia’s natural fracture surfaces create better evaporation and softer, more balanced steam (löyly).

Each box contains approximately 44 lbs of hand-selected natural stone. We recommend purchasing an extra box to select the best pieces for size, fit, and visual balance during installation.

Features:

• Authentic Harvia Quality: Traditional Finnish-selected sauna stones for superior performance.

• Split-Face Design: Stores heat efficiently and produces soft, rich steam.

• Optimal Airflow: Angular stones allow loose stacking for even heat circulation.

• High Heat Retention: Maintains consistent temperature over longer sessions.

• Durable Construction: Made from dense, natural stone that withstands extreme heat.

• Universal Compatibility: Works with all Harvia electric and wood-burning heaters.

• Perfect Fit Range: Each stone measures approximately 10–15 cm (4–6 in).

• Weight: 44 lbs per box (20 kg).

Compatibility:

Compatible with the following Harvia series:

• Virta Series

• AF (Forte) Series

• M Series

• Pro Series

• Legend Series

⚠️ Note: Light, ceramic, or smooth stones (such as soapstone or rounded types) are not recommended and may damage electric heaters.

Specifications:o

• Model: AC3020

• SKU: AC3020

• Stone Size: 10–15 cm (4–6 in)

• Weight: 44 lbs (20 kg) per box

• Material: Natural split-face stone (olivine diabase)

• Use With: Harvia electric and wood-burning heaters and stoves

• Origin: Finland

• Availability: Only with purchase of a Harvia sauna heater or stove