Steam & Oak Cube Sauna 2m — Spruce or Thermowood, 5 Person - Thermowood — 44mm / Harvia M3 — wood-fired / Electricity connection box with 380V plug
Steam & Oak · our rating 55
from £7,750 at 1 retailer
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Where to buy
| Retailer | Price | RRP | 30-day change | |
|---|---|---|---|---|
| Steam & Oak | £7,750 | — | — | View at Steam & Oak |
Price history
Specs
| Sizes | 5-person |
|---|---|
| Features | wood-fired, electric, 380v-plug |
Steam & Oak Cube Sauna 2m — build it your way, in spruce or thermowood The 2m Cube is the size most UK gardens actually want: a genuine five-seat sauna room with a proper panoramic glass front, on a footprint that still leaves you a garden. It sits between our 1.8m Cube and the 2.4m Double-Shelf — more bench than the 1.8m, less ground than the 2.4m with its porch. This is a made-to-order cabin. You choose the timber, the heater and the electrical connection at checkout, and it is built to that specification. Nothing here is a stock box with options bolted on afterwards. Choose your timber — spruce or thermowood Both walls are 44mm solid timber. The wall is the structure, not a thin cladding over a hidden frame, so what you see and lean against is the building itself. There is no cavity to trap damp and no concealed insulation to fail. Slow-grown spruce Thermowood Price £6,500 £7,250 Colour Pale, takes oil or colour beautifully Deep honey-brown throughout Stability Tight, dense growth rings; machines to a precise joint Kiln-treated to ~200°C — minimal movement, minimal cupping Weathering Needs oiling to hold its colour Silvers gracefully if left; very low maintenance Best for Buyers who want to pick their own exterior colour Exposed sites, coastal gardens, fit-and-forget Spruce is the traditional Nordic sauna timber and, at 44mm, a thicker solid wall than most barrels on the market — that timber mass stores heat and gives it back evenly, so the warmth stays steady rather than dropping away the moment the door opens. Thermowood is that same principle with the moisture cooked out of the cell walls, which is what makes it so dimensionally stable outdoors. See Thermowood vs Slow-Grown Spruce for the full comparison. Choose your heater — wood-fired M3 or electric Cilindro No heater — cabin only. Take the shell and fit your own stove. Harvia M3 (wood-fired). The classic Finnish log-burning stove. No electrics at all, no standing charge, and the ritual of building the fire. Needs a flue — pick your chimney route on the order. Harvia M3 SL (wood-fired, through-wall feed). Same stove, loaded from outside the sauna room through the wall. You feed the fire without letting the heat out and without carrying logs past bathers — the standard choice where the sauna has a porch or anteroom. Harvia Cilindro PC90 9kW (electric). The cylindrical stone column — a deep vertical stone mass that gives a softer, rounder löyly than a flat-topped heater, because the steam rises through the whole column rather than off a shallow tray. Needs a dedicated circuit. Harvia Cilindro PC90XW 9kW WiFi (electric). The same heater with app control. Set it heating from the train and walk into a sauna that is already at temperature — the single upgrade owners tell us they use most. Heater prices shown are a holding price pending final supplier confirmation. Choose your electrical connection How the cabin arrives wired changes what your electrician has to do on the day — and what it costs you. All four connection options are available: Electricity cable only. The cabin is delivered with the cable run and nothing terminated. Lowest cost, most work for your electrician — they specify and fit everything. Electric plug-in, 230V or 380V. Terminated to a plug. Simplest route where you already have a suitable outdoor socket on the correct circuit. Electricity connection box. A proper consumer connection box fitted in the cabin — your electrician wires into the box rather than building the termination from scratch. Electricity connection box with 380V plug. The full arrangement: connection box and a three-phase plug. The fastest commissioning of the four, and the usual choice with a 9kW Cilindro. Electric heaters need a dedicated circuit installed by a qualified electrician and signed off under Part P — budget £800–£1,500 on top, and book them before delivery. The wood-fired M3 options need no electrical supply for the heater itself. Build & finish Walls: 44mm solid spruce or
