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R-991 Round Sauna Stones R-911-6X
Harvia

R-991 Round Sauna Stones

Harvia
$499
In stock · Processed in 1–5 business days
  • Free shippingUS, Canada & Europe
  • 14-day returnsRefunds within 30 days
  • Pay by invoiceBank transfer, 3 days to pay
  • WarrantyCovered by the manufacturer

Estimated delivery . Shipping · Returns · Warranty

Questions? Talk to a sauna specialist: +1 (408) 320-0181

About this product

Enhance your sauna sessions with these premium, rounded olivine diabase heater stones. Designed for superior heat retention and a softer, more comfortable steam, these stones are an essential addition to any high-performance sauna heater.

Transform your home wellness space with our high-quality, rounded olivine diabase sauna stones. Engineered to replicate the natural aesthetic of river rocks, these stones are the perfect accessory for those seeking a superior, soft steam experience. Olivine diabase is recognized for its exceptional thermal capacity and durability, ensuring that your sauna heater maintains consistent heat distribution throughout your session. By choosing these high-density stones, you are investing in a longer-lasting, more efficient heating environment that allows for a gentle, rolling steam every time you add water to your heater.

The Benefit of Rounded Sauna Stones for Steam Quality

Using rounded olivine diabase stones on the top layer of your heater is a proven method for improving the overall steam quality of your home sauna. Unlike jagged varieties, the rounded profile encourages water to penetrate deeper into the heater core. This design allows water to reach more surface area, creating a softer, more comfortable steam that is gentle on the skin and breathing. For heaters with smaller capacities, we recommend using a mix of angular stones in the bottom layers to provide a stable foundation, while reserving these rounded stones for the top to achieve the perfect balance of heat retention and vapor production.

Key Features and Specifications

  • Elegant rounded shape modeled after natural river stones
  • Constructed from premium, safe, and durable gray olivine diabase
  • Provides a softer, more consistent steam experience
  • Includes a 33 lb box with stone sizes ranging from 2 to 4 inches (5 to 10 cm)
  • Free from harmful ingredients for a clean and safe sauna experience

Proper maintenance is essential to extend the life of your heating elements. By piling the stones loosely, you ensure optimal airflow, which prevents premature heater wear and maintains efficiency. These stones provide the reliable performance needed to complete any professional-grade home wellness setup.

Specifications

ModelR-991
Stone weight per box33 lbs
Stone dimensions2" - 4" (5-10 cm)
Construction materialOlivine diabase
ShapeRounded

Shipping, payment & returns

  1. 1Place your orderChoose bank transfer at checkout. Your invoice and bank details appear instantly and are emailed to you.
  2. 2Pay within 3 daysACH or domestic wire in the US, international wire in USD or another currency. Unpaid orders cancel automatically.
  3. 3We process and shipProcessing takes 1–5 business days after payment, then delivery takes 7–12 business days. Shipping is free.

Import duties, VAT and customs fees outside the US, where applicable, are the recipient’s responsibility. Return requests within 14 days of delivery; approved refunds within 30 days. Optional shipping protection ($99) is available at checkout. See the shipping and return policies.

Frequently asked

How many pounds of stones are included in this set?

Each order includes a 33 lb (15 kg) box of premium rounded olivine diabase stones, which is sufficient for most standard residential sauna heaters.

What is the recommended size of these sauna stones?

These stones range from 2 to 4 inches (5 to 10 cm) in diameter, making them ideal for the top layers of your heater to encourage airflow and soft steam production.

How should I arrange these stones in my heater?

For best results, pile the stones loosely to allow for air circulation. If you have a heater with a smaller capacity, we suggest using angular stones at the base and placing these rounded stones on top.

Are these stones safe for residential sauna use?

Yes, these stones are made from high-quality, natural olivine diabase and are free from harmful ingredients, ensuring a clean and safe experience during every session.

Complete your setup

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