BS4000LHG Outdoor Barrel Sauna
The longest barrel in the range — 230cm of rustic Red Cedar, built for four people and designed around one key distinction: at 177cm, the interior bench is long enough to lie flat. If you use a sauna to genuinely stretch out rather than sit upright, this is the model to choose.
Like all traditional Finnish-style saunas, the BS4000LHG heats by hot stone convection, not infrared. The included 6kW heater brings the stones to temperature; the barrel form circulates heat naturally, with no corners for it to stall in. Ladle water over the stones to release a sharp burst of steam — the Finnish practice of löyly — and the experience is immediately, unmistakably different from anything a panel-based sauna can offer.
The half-glass upper panel gives you light and a view from inside — the garden, the sky, whatever is there — while the solid lower panel keeps everything private at seated height. Steel banding and a timber skid base. Red light therapy can be added for £999, installed at the same time as the sauna by the same team.
What's included
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6kW hot-stone heater — included as standard; löyly-capable from the first session
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230cm exterior barrel length — 177cm interior bench, enough to lie flat
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4-person capacity — generous for the size; suits couples and small families equally
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Half-glass tinted upper panel — view out, privacy in
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Rustic Red Cedar — aromatic, moisture-resistant, and suited to long-term outdoor use
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Steel banding and timber skid base — structural integrity through seasonal expansion and contraction
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Red light therapy upgrade available for £999 — fitted at installation
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UK delivery and installation by Medi-Spa's own team; full handover before we leave
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Lifetime structural guarantee on frame, cladding, benching and glass
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2-year electrical guarantee on heater, controls and lighting
Specifications
| Capacity |
4 people |
| Exterior barrel length |
230 cm |
| Interior bench length |
177 cm |
| Diameter (widest point) |
Confirm at consultation |
| Ridge height |
Confirm at consultation |
| Timber |
Rustic Red Cedar |
| Sauna type |
Traditional hot stone (Finnish) |
| Heater output |
6kW, included as standard |
| Glazing |
Half-glass tinted upper front panel |
| Red light therapy upgrade |
£999, fitted at installation |
| Structural guarantee |
Lifetime |
| Electrical guarantee |
2 years |
Frequently asked questions
What makes the LHG longer than the standard HG?
The LHG adds length to the barrel — 230cm exterior versus the HG's shorter barrel — which translates directly to the 177cm interior bench. The heater, glazing and roof options are the same; the difference is entirely about interior space and the ability to lie flat.
How do I prepare my garden for this?
You need a level, firm base — concrete, paving or quality decking — and a suitable electrical supply nearby. We confirm exactly what your site needs during the pre-installation assessment, included at no charge.*
What is löyly and can I do it in this sauna?
Löyly is the Finnish practice of ladling water over hot stones to release a sharp burst of steam. Yes — the BS4000LHG is fully löyly-capable. It is what distinguishes traditional Finnish heat from infrared and is one of the main reasons people choose this format.
Built to last. Guaranteed for life.
Every BS4000LHG carries a full lifetime structural guarantee on the frame, cladding, benching and glass. Electrical components are covered for 2 years. Contact info@medi-spa.co.uk for any warranty enquiry.
0% finance available — subject to status. T&Cs apply.
* Pre-installation assessments are carried out in person for clients within our local area. For clients further afield, we conduct a thorough remote assessment using photos, video and plans — at no charge and with no obligation to proceed.
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