Bast sauna stones 20 kg
£17.99£30.99 at BastSave £13
The price at Bast was checked on 28 October 2026.
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Goes well together
Bast sauna stones 20 kg, £17.99
+ Bast sauna bucket and ladle in steel and bamboo, £45.99
Total £63.98
£17.99
Bast sauna stones 20 kg
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Stack them loosely
Place the stones with gaps so air can circulate. Packed too tightly, they give less steam and put more strain on the stove.
Then just throw water
With the stones in place and a ladle of water, you decide how much steam you want.
Product FAQ
Do the stones suit my stove?
Use the stones in a sauna stove or heater made for sauna stones. Bast does not state the stone size – always check your stove or heater manual for the recommended size and amount.
Is 20 kg enough?
It depends on the stove. The amount of stones is in the stove manual.
Can I use ordinary stones from nature?
No. Stones from nature can crack or burst when heated. Use stones intended for saunas.
How often should the stones be replaced?
Bast recommends every two to three years. Remove cracked stones when you restack.
How fast will it arrive, and can I change my mind?
Delivery options and times are on our Delivery page. You have a 14-day right of withdrawal and a 3-year right to complain – see the Returns page.
Description
The stones make the steam. Good sauna stones withstand heat and water, store warmth and give an even, pleasant steam when you throw water.
The box holds 20 kg of stones that, according to Bast, are selected for sauna stoves and to withstand high temperatures and water. Bast does not state the stone size, so check the manual of your stove or heater for the right size and amount.
Stack the stones loosely so the heat can circulate, and replace them every two to three years.
Features
- 20 kg of sauna stones in a box
- Selected to withstand high heat and water (according to Bast)
- Give an even, pleasant steam
- Replace the stones every two to three years
- Size: not stated by Bast – follow your stove manual
Specifications
| Weight | 20 kg (box) |
|---|---|
| Stone size | Not stated by Bast |
| Use | In a sauna stove or stone basket made for sauna stones |
| Replacement | Every two to three years (according to Bast) |
Delivery and returns
You choose your delivery option at checkout:
- Standard delivery (tracked), 3–5 working days – £3.99
- Express delivery, 1–2 working days – £6.99
You have a 14-day right to cancel from the day you receive your item. Contact us within 14 days if you want to cancel your order.
Read more about returns and cancellationsWarranty and complaints
Your goods are covered by the Consumer Rights Act 2015: they must be of satisfactory quality, fit for purpose and as described. If something is wrong with your item, contact our customer service and we will help you.
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