Harvia AC3020 Sauna Heater Stones, Split Face, 10-15cm
Best natural stones for enhancing steam quality in home saunas.
Elevate your sauna experience with Harvia's AC3020 Sauna Heater Stones. Crafted from natural Olivine Diabase, these split-face stones measure 4-6 inches and come in a 44lb package. Designed for optimal performance with Harvia heaters, they enhance steam quality and promote air circulation, extending the life of your heating elements. Enjoy an authentic, intense, yet soft heat that transforms your sauna into a sanctuary of relaxation and well-being.
$134.99
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 182
Best Sauna Accessories
Price vs Category Average
-69%
Below average
Stone Size
461015
/ - inches (-cm)
Who it's for
- Sauna enthusiasts seeking rich, voluminous steam production
- Homeowners wanting long-lasting, durable heating components
- Frequent bathers needing consistent, sustained heat retention
Who should skip it
- Budget-conscious buyers preferring affordable, generic alternatives
- Users wanting a quick, effortless heater setup process
- Owners looking for a permanent, maintenance-free solution
Performance breakdown
Heat Retention
Olivine Diabase density ensures consistent, long-lasting thermal energy for your sauna.
Steam Quality
Split-face surface area maximizes water evaporation for a soft, enveloping steam.
Airflow Efficiency
Properly stacked stones allow optimal convection currents around your heating elements.
Material Durability
Resists cracking under extreme temperature fluctuations for a longer service life.
Installation Ease
Uniform sizing makes stacking and arranging within the heater basket straightforward.
Heater Compatibility
Engineered specifically to protect Harvia heating elements from premature wear.
Key Specs
Stone Size
4-6 inches (10-15cm)
Material
Split-Face Olivine Diabase
Weight
44 lbs (20 kg)
Recommended Use
Electric sauna heaters and wood-burning stoves
Package Contents
44lbs of stones
Max Safe Temperature
1000°C
Features
- Enhances steam quality for a softer experience
- Split-face design maximizes heat retention
- Improves air circulation around heating elements
- Durable natural Olivine Diabase material
- Suitable for electric and wood-burning heaters
- Promotes efficient water evaporation
- Authentic sauna bathing experience
- Easy to stack for proper installation
What customers say
Customers highly value Harvia AC3020 sauna stones for their premium performance. The core sentiment centers on exceptional heat retention and the ability to produce superior soft steam, or löyly. Reviewers praise the split face design, noting the increased surface area promotes efficient water vaporization for a richer steam environment. The 10 to 15cm size offers a stable base for consistent performance in larger heaters. While these stones carry a premium price, users agree the investment is justified by the noticeable improvement in sauna quality and material durability. Enthusiasts consider the AC3020 the gold standard for authentic, high performance.
Know before you buy
Olivine Diabase is highly valued for its high thermal capacity and excellent resistance to extreme temperature fluctuations. Its density allows it to retain heat efficiently, ensuring a consistent, soft steam when water is applied.
Yes, these stones are designed to be versatile and are suitable for use in both electric sauna heaters and wood-burning stoves.
The split-face texture increases the surface area of the stones, which improves heat retention and promotes better air circulation between the heating elements. This design also helps water evaporate more effectively, resulting in a more consistent steam.
It is recommended to inspect your stones at least once a year. If they begin to crumble or show signs of significant wear, they should be replaced to maintain optimal heating efficiency and prevent debris from damaging the heating elements.
A 44 lb (20 kg) package is typically sufficient for most residential sauna heaters. However, you should always check your heater's manual to confirm the specific stone capacity required for your model.
Yes, it is best practice to rinse the stones with water to remove any dust or debris from the packaging before placing them in your heater. This ensures a clean, odor-free experience during your first session.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$135