Orbis Cage — Cage Botnia 81 & Aurora 81 Gas Sauna Heater Orbis 11 — 20 capacity

Steam & Oak is the first UK retail partner for FinSteam. Standalone Orbis stone cage — upgrade or replacement for your FinSteam heater The Orbis is the FinSteam-designed stone cage that sits on top of the Botnia 81 or Aurora 81 gas sauna heater chassis. Fully compatible with all FinSteam heaters — including older Botnias bought before the Orbis line existed. Buy standalone if you're upgrading the look of an older heater, replacing a damaged cage, or moving up from the Orbis 11 to the Orbis 14 to take more stones. Which size should I pick? Orbis 11 — 20-25 kg stone capacity. Default for most domestic barrel and cube saunas. The cage that comes with the R11 and R11S heater variants. Orbis 14 — 25 kg+ capacity. Larger sauna volume (8-12 m³) — more stones for stronger löyly. The cage that comes with the R14 and R14S heater variants. When to buy a standalone Orbis You already own a Botnia 81 in the base O configuration and want to add a proper cage. You're upgrading from an older FinSteam heater that pre-dated the Orbis design — the new cage fits the same chassis. You want to upgrade from Orbis 11 to Orbis 14 to take more stones for a larger sauna. Replacing a damaged or aged cage. Pairs with Botnia 81 or Aurora 81 heater (any variant). 40 kg sauna stones — sized for both Orbis 11 and Orbis 14. Njord heat shield + Halo safety rail if you're building up to the full S safety pack. Free UK delivery.