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Harvia AC3020 box of olivine diabase sauna heater stones, 20 kg, size 10-15 cm
Harvia

Harvia Split-Face Olivine Diabase Sauna Heater Stones 4-6" / 44lbs | AC3020

$62
$99
Save $37
+Shipping

In stock

Estimated delivery

7–12 days after you order

Boxes (44lbs.): 1 Box

Free shipping when ordered with a heater — otherwise $60/box due to weight.

  • Covered by the manufacturer's warranty

    Products are sourced through authorized channels and include the applicable manufacturer warranty, subject to the manufacturer's terms. Terms vary by brand and model, and we'll send you the exact warranty document on request.

    If something goes wrong, contact us first: we help troubleshoot and coordinate the claim with the manufacturer.

    Contact our team

  • Full-Value Freight Protection

    Large orders ship fully insured. If freight arrives damaged, Topture helps coordinate the claim and replacement process with the carrier and manufacturer.

    At delivery, note any damage on the delivery receipt and take photos before the driver leaves, then report it to us within 24 hours.

    How freight delivery works Shipping policy

  • We're here after your purchase, too.

    Need help with delivery, installation documentation, heater questions or a warranty issue? Our team can help you find answers and coordinate with the manufacturer when needed.

    Contact our team

Description

What are Harvia AC3020 sauna stones?

Harvia AC3020 are angular split-face sauna stones of dark grey olivine diabase, 4–6" (10–15 cm) across, sold in 44 lb (20 kg) boxes. They are the stone size Harvia's wood-burning stove manuals call for, and the size for the WL300 and WL300PC smoke-pipe stone covers. They come from Finland.

Which Harvia stoves take AC3020 stones?

These Harvia wood-burning stoves and stone covers take AC3020, in the amounts below. Each box holds 44 lb (20 kg), and the box counts cover each load.

Stone load per Harvia's stove manuals and stone chart
Stone load Boxes of AC3020
Harvia Legend 150 and 150 SL 264 lb (120 kg) 6
Harvia Legend 240 Duo, 240 SL and 240 GreenFlame 441 lb (200 kg) 10
Harvia Legend 300 Up to 573 lb (260 kg) 13
Harvia Cilindro 16 and 20 (wood-burning) 264 lb (120 kg) 6
Harvia Pro 20, 20 SL, 20 ES, 20 LS, 20 RS and Pro 20 Duo 88 lb (40 kg) 2
Harvia Pro 26 110 lb (50 kg) 3
Harvia Pro 36 and Pro 36 Duo 132 lb (60 kg) 3
Harvia Linear 16 Up to 79 lb (36 kg) 2
Harvia Linear 18 Compact 88 lb (40 kg) 2
Harvia Linear 22 GreenFlame and GreenFlame ES 88 lb (40 kg) 2
Harvia M3 and M3 SL Up to 66 lb (30 kg) 2
Harvia 50 (WK500) Up to 265 lb (120 kg) 6
Harvia WL300 and WL300PC smoke-pipe stone covers About 88 lb (40 kg) 2

Which Harvia heaters need a different stone?

These Harvia electric heaters take smaller stones: the KIP, The Wall, Vega Compact, Virta and Virta Combi 6–9 kW, Club and Cilindro Half take the 2–4" (5–10 cm) Harvia AC3000, and the Spirit takes rounded Harvia R-991 only. For any other Harvia heater, the heater's manual gives the stone size and amount.

A $60 shipping fee per box applies unless the stones are ordered and shipped together with a sauna heater or stove.

What's Included

What's in a box of Harvia AC3020?

  • 44 lb (20 kg) of AC3020 split-face olivine diabase stones, 4–6" (10–15 cm)
  • Each option adds a box: 2 boxes are 88 lb, 6 boxes 264 lb
Specifications

Harvia AC3020 specifications

Harvia AC3020 (harvia.com; Harvia stone declaration 17.11.2025)
Stone Angular split-face olivine diabase, dark grey
Size 4–6" (10–15 cm)
Box weight 44 lb (20 kg)
Box size 5.91" × 11.42" × 15.75"
Origin Finland
Harvia part number AC3020 (GTIN 6417659005913)
Warranty Sauna stones are not covered by Harvia's warranty; Harvia's warranty also excludes damage caused by stones it does not recommend
Documents

The heater's own manual gives its stone size and amount, and it governs where the chart differs.

Bathing Brands Harvia Stone Requirements Chart

Warranty

Harvia Warranty

Read the full LIMITED WARRANTY TERMS AND CONDITIONS

REAL HOMES. REAL REVIEWS.

What Topture Customers Say

Topture is rated 4.9/5 across 463 customer reviews

We thought about buying a sauna for years and finally did. We absolutely love it, especially in the winter. It’s incredibly easy to assemble with two people the whole family uses it.

Verified buyer

Ordered this sauna fall 2024 and we love it. No better feeling during a Minnesota winter. Lastly, I have to mention the customer service for this purchase has been like no other. Any questions or requests I had were addressed immediately by Topture. I got more than I expected from them and have already recommended them to several people looking for saunas. SO if you're thinking about it, JUST DO IT already..

Verified buyer

Thanks for the great service - greatly appreciated.

Verified buyer
463 Customer Reviews

Product and store reviews from Topture customers, collected by Judge.me.

Lifetime Expert Support

Same team before and after the sale, from sizing to warranty support.

Authorized Harvia Retailer

Sold by Topture, with the applicable manufacturer warranty.

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Freight damage? We help coordinate the claim and replacement process.

STILL UNSURE?

Frequently Asked Questions

General Topture Questions

Where are you located, and where do you ship from?

Topture is an online retailer serving customers in the contiguous United States. The company is Topture LLC, a Wyoming limited liability company, and its registered business address is 30 N Gould St, Ste N, Sheridan, WY 82801.

Orders ship from manufacturer and distributor warehouses in the U.S. and Canada, and some products ship directly from the manufacturer in Europe. Each product page shows its estimated delivery time.

How much is shipping?

Orders over $200 ship free within the contiguous United States. Orders under $200 carry a small shipping fee.

Two exceptions: SaunaLife and ThermaSol products carry a freight charge at any order value, and sauna stones ordered without a heater ship at $60 per box because of their weight.

Every charge is shown at checkout before you pay.

Do you provide financing?

Absolutely! To view your financing offer, simply select Shop Pay Installments as your payment method at Step 3 of checkout.

You'll need to enter a debit card to receive your offer, but don’t worry—you can still back out before completing the purchase.

How long will it take for my items to arrive?

If your order is in stock, most orders ship within 2–7 business days of purchase. Transit time then depends on the distance from the warehouse and, for freight, on booking a delivery appointment.

For custom, pre-order or made-to-order items, the estimated delivery time frame is listed on the product page. Delivery dates are estimates, so please don't book installation labor until your order has arrived and been inspected.

What happens after I place my order?

As soon as you place your order, you'll receive a confirmation email with your order details—be sure to keep it for your records. Once your order ships, you'll receive another email with tracking information.

For freight deliveries, the carrier will call or text you to schedule an appointment once the shipment reaches their local terminal. Someone needs to be there to inspect the shipment and sign for it. Smaller parcels arrive by UPS or FedEx without an appointment.

Is there a warranty?

Yes. Products purchased through Topture include the applicable manufacturer’s warranty, subject to the manufacturer’s terms. You’ll find the warranty details for each product under the "Warranty" tab on its product page, and we help with troubleshooting and warranty coordination if an issue comes up.

Do you have a showroom?

We don’t have a showroom — we sell online. Our team is available by phone, email and chat to help you compare models, sizes and heaters, and we can send dimensions, installation manuals and electrical requirements before you buy.

Where do you deliver to?

We deliver throughout the 48 contiguous states, with curbside freight delivery for large items. Free shipping and standard rates apply there only. Alaska, Hawaii, Puerto Rico, other U.S. islands and Canada are quoted separately, depending on the brand and model. We can't ship freight or oversized items to P.O. boxes.

Do you ship internationally?

International Shipping

For many products, yes, including to Canada, by custom quote. Email contact@topture.com with the product and your address before you order; availability and cost depend on the brand and model. Any duties, taxes and customs fees are your responsibility.

Shipping to Hawaii, Alaska, and Puerto Rico

Free shipping applies to the contiguous United States only. Shipping to Alaska, Hawaii, Puerto Rico and other U.S. islands is quoted separately and depends on the brand and model. Email contact@topture.com for a quote before you order.

Harvia AC3020 box of olivine diabase sauna heater stones, 20 kg, size 10-15 cm

Your sauna heater stone, done the right way.

  • Covered by the manufacturer's warranty

    Products are sourced through authorized channels and include the applicable manufacturer warranty, subject to the manufacturer's terms. Terms vary by brand and model, and we'll send you the exact warranty document on request.

    If something goes wrong, contact us first: we help troubleshoot and coordinate the claim with the manufacturer.

    Contact our team

  • Full-Value Freight Protection

    Large orders ship fully insured. If freight arrives damaged, Topture helps coordinate the claim and replacement process with the carrier and manufacturer.

    At delivery, note any damage on the delivery receipt and take photos before the driver leaves, then report it to us within 24 hours.

    How freight delivery works Shipping policy

  • We're here after your purchase, too.

    Need help with delivery, installation documentation, heater questions or a warranty issue? Our team can help you find answers and coordinate with the manufacturer when needed.

    Contact our team