Skip to content

Harvia R-991 Sauna Heater Stones

Rounded Olivine, 5-10cm, 33lbs

by Harvia
SKU R-991
Original price $113.33 - Original price $113.33
Original price $113.33
$116.67
$116.67 - $116.67
Current price $116.67

Free shipping. No income tax (except FL)

NOTE: Not sold without the purchase of a Harvia sauna heater or stove.

Description

Crafted from Olivine Diabase, these rounded sauna stones (5-10 cm) replicate nature's river-polished formations to optimize steam dynamics. Their convex surfaces direct water flow through deeper stone layers, expanding contact area and intensifying steam output with a controlled, gentle heat profile. Universally compatible with all sauna heater models, each 33 lb box delivers the thermal mass and performance characteristics demanded by serious sauna users seeking consistent, high-quality steam generation.

NOTE: Not sold without the purchase of a Harvia sauna heater or stove.

Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function.

Features

  • Elegant, rounded sauna heater stones made of olivine diabase
  • Selected, clean and safe to use
  • Resemble nature's rounded stones from the great rapids
  • Rounded stones provide more softer steam
  • Needs to be piled loosely to guarantee good air circulation and longer heater life
  • Especially in heaters with smaller stone capacity, use same sized angular stones in the bottom layers as they give more heating surface area for the water
  • Color and stone species: Gray olivine diabase
  • Stone size 5-10 cm and box weight 33 lbs (15 kg)
  • Does not contain harmful ingredients

Includes

  • 33 lb box of 2" to 4" (5-10 cm) sauna stones

Specifications

Model

R-991

Stone Weight Per Box

33 lbs

Stone Dimensions

2" to 4" (5-10 cm)

Construction Material

Olivine Diabase

Shape

Rounded

Technical

Harvia Stone Requirements

Certification


Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare
NOTE: Not sold without the purchase of a Harvia sauna heater or stove.
Description

Crafted from Olivine Diabase, these rounded sauna stones (5-10 cm) replicate nature's river-polished formations to optimize steam dynamics. Their convex surfaces direct water flow through deeper stone layers, expanding contact area and intensifying steam output with a controlled, gentle heat profile. Universally compatible with all sauna heater models, each 33 lb box delivers the thermal mass and performance characteristics demanded by serious sauna users seeking consistent, high-quality steam generation.

NOTE: Not sold without the purchase of a Harvia sauna heater or stove.

Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function.

Features
  • Elegant, rounded sauna heater stones made of olivine diabase
  • Selected, clean and safe to use
  • Resemble nature's rounded stones from the great rapids
  • Rounded stones provide more softer steam
  • Needs to be piled loosely to guarantee good air circulation and longer heater life
  • Especially in heaters with smaller stone capacity, use same sized angular stones in the bottom layers as they give more heating surface area for the water
  • Color and stone species: Gray olivine diabase
  • Stone size 5-10 cm and box weight 33 lbs (15 kg)
  • Does not contain harmful ingredients
Includes
  • 33 lb box of 2" to 4" (5-10 cm) sauna stones
Specifications

Model

R-991

Stone Weight Per Box

33 lbs

Stone Dimensions

2" to 4" (5-10 cm)

Construction Material

Olivine Diabase

Shape

Rounded