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Heater Stones 2-4 In, 44 lbs | Harvia
Heater Stones 2-4 In, 44 lbs | Harvia
Heater Stones 2-4 In, 44 lbs | Harvia

Harvia Heater Stones (2-4 in, 44 lbs) bring dependable heat storage and authentic sauna character to your heater setup. Crafted from dense olivine diabase quarried in Western Finland, these traditional dark stones tolerate repeated high temperatures without breaking, helping protect heating elements and fireboxes. Sized between 2–4 inches (5–10 cm), the 44-pound box fills most heater baskets with angular, split-face pieces that stack securely while still allowing effective air circulation. The rugged surfaces warm quickly and respond beautifully when you throw water on the stones, producing full, smooth steam and a naturally balanced sauna climate. Suitable for both electric units and as a top layer over wood-burning heaters, Harvia Heater Stones (2-4 in, 44 lbs) are a reliable choice for powerful, consistent heat.

  • Premium olivine diabase – Dense, subvolcanic stone from Western Finland withstands repeated high-heat cycles without breaking, protecting heater elements and fireboxes while delivering reliable heat storage and release for a consistently comfortable sauna climate.
  • Efficient heat and steam performance – Angular, split-face surfaces warm quickly and respond instantly when water is thrown, producing rich, soft löyly instead of harsh bursts, enhancing both comfort and authenticity in every sauna session.
  • Optimized 2–4" sizing – Pre-sized 2–4" (5–10 cm) stones fill most heater baskets cleanly, stacking securely while maintaining air channels that support efficient airflow, faster warm-up, and stable temperatures throughout the room.
  • Universal heater compatibility – Suitable for electric heaters or as a top layer on wood-burning units, these stones adapt easily to different installations while supporting powerful, consistent heat output across Harvia and other compatible models.
  • Natural, rugged aesthetic – Dark gray, split-face stones bring classic Finnish sauna character and a natural, rugged look that complements both traditional timber rooms and modern metal-clad heater designs.
  • Clean and sauna-safe – Free from harmful chemicals or additives, the stones support a clean bathing environment, giving you confidence in the air quality and safety of your sauna’s heat source.
  • MPN: Not specified
  • Compatibility: Electric and wood-burning sauna heaters
  • Part Type: Sauna heater stones
  • What’s Included: 44 lbs (20 kg) box of Harvia olivine diabase sauna heater stones
  • Stone Size: 2–4" (5–10 cm)
  • Weight: 44 lbs (20 kg)
  • Material: Premium olivine diabase sauna stones
  • Usage: Ideal for building a stable stone bed and creating soft, consistent steam in electric heaters or as a top layer on wood-burning units
  • Package Dimensions (W × D × H): 11.4" × 15.7" × 5.9"
  • Country of Origin: Finland (mined in Western Finland)
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Heater Stones 2-4 In, 44 lbs | Harvia

by Harvia
SKU: HAR-AC3000
$89.00
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Harvia Heater Stones (2-4 in, 44 lbs) bring dependable heat storage and authentic sauna character to your heater setup. Crafted from dense olivine diabase quarried in Western Finland, these traditional dark stones tolerate repeated high temperatures without breaking, helping protect heating elements and fireboxes. Sized between 2–4 inches (5–10 cm), the 44-pound box fills most heater baskets with angular, split-face pieces that stack securely while still allowing effective air circulation. The rugged surfaces warm quickly and respond beautifully when you throw water on the stones, producing full, smooth steam and a naturally balanced sauna climate. Suitable for both electric units and as a top layer over wood-burning heaters, Harvia Heater Stones (2-4 in, 44 lbs) are a reliable choice for powerful, consistent heat.

  • Premium olivine diabase – Dense, subvolcanic stone from Western Finland withstands repeated high-heat cycles without breaking, protecting heater elements and fireboxes while delivering reliable heat storage and release for a consistently comfortable sauna climate.
  • Efficient heat and steam performance – Angular, split-face surfaces warm quickly and respond instantly when water is thrown, producing rich, soft löyly instead of harsh bursts, enhancing both comfort and authenticity in every sauna session.
  • Optimized 2–4" sizing – Pre-sized 2–4" (5–10 cm) stones fill most heater baskets cleanly, stacking securely while maintaining air channels that support efficient airflow, faster warm-up, and stable temperatures throughout the room.
  • Universal heater compatibility – Suitable for electric heaters or as a top layer on wood-burning units, these stones adapt easily to different installations while supporting powerful, consistent heat output across Harvia and other compatible models.
  • Natural, rugged aesthetic – Dark gray, split-face stones bring classic Finnish sauna character and a natural, rugged look that complements both traditional timber rooms and modern metal-clad heater designs.
  • Clean and sauna-safe – Free from harmful chemicals or additives, the stones support a clean bathing environment, giving you confidence in the air quality and safety of your sauna’s heat source.
  • MPN: Not specified
  • Compatibility: Electric and wood-burning sauna heaters
  • Part Type: Sauna heater stones
  • What’s Included: 44 lbs (20 kg) box of Harvia olivine diabase sauna heater stones
  • Stone Size: 2–4" (5–10 cm)
  • Weight: 44 lbs (20 kg)
  • Material: Premium olivine diabase sauna stones
  • Usage: Ideal for building a stable stone bed and creating soft, consistent steam in electric heaters or as a top layer on wood-burning units
  • Package Dimensions (W × D × H): 11.4" × 15.7" × 5.9"
  • Country of Origin: Finland (mined in Western Finland)
Video poster Play video 1
Open product video in larger window