Important: Smoke pipes are not included in the delivery.
- Metal smoke pipes, Stainless steel chimney pipes — view category
STOVEMAN
SAUNA WOODBURNING STOVE STOVEMAN 20R-LS
SAUNA WOODBURNING STOVE STOVEMAN 20R-LS
£505.40 Inc. VAT
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The Stoveman 20R-LS is a powerful and versatile wood-burning sauna stove built for medium to large saunas of 12 to 20 m³. Its defining feature is the external firebox (LS) — allowing the stove to be loaded with wood from an adjacent room, keeping the sauna space clean, tidy, and free of ash and wood debris throughout every session.
Constructed from 5 mm heat-resistant steel throughout the main body (3 mm base, 2 mm ash pan), the stove is designed to withstand prolonged high-temperature use. Six integrated air channels in the outer body create enhanced natural convection, circulating heated air evenly across the sauna room. The handmade 10×20 mm steel mesh basket holds up to 160 kg of sauna stones, providing a generous thermal mass for soft, enveloping steam and sustained heat long after the fire has settled. A glass-fronted door lets you enjoy the live flame from the adjacent room.
The Stoveman 20R-LS is also compatible with the Stoveman SV1 heat exchanger, allowing hot water to be generated during sauna sessions — a practical upgrade for any bathhouse.
Specifications
| Model Code | 13110143 |
| Power | 20 kW |
| Sauna Volume | 12 – 20 m³ |
| Dimensions (H × W × D) | 840 × 800 × 510 mm |
| Weight | 87 kg |
| Maximum Stone Load | 160 kg |
| Main Body Steel Thickness | 5 mm |
| Stove Base Thickness | 3 mm |
| Ash Pan Thickness | 2 mm |
| Flue Diameter | 115 mm |
| Firebox Type | External / LS (loads from adjacent room) |
| Safety Distances (ceiling / sides) | 1200 / 500 mm |
| Heat Exchanger Compatibility | Stoveman SV1 (sold separately) |
| Certification | CE (not BimSchV — not for Germany) |
What's Included
- Stoveman 20R-LS wood-burning sauna stove with external firebox
- Glass-fronted door
- Ash pan
Stones are not included - Sauna stones
Installation
- Plan and prepare the through-wall opening for the external firebox between the sauna and adjacent room.
- Install the stove on a fireproof, load-bearing base capable of supporting at least 87 kg plus stone weight.
- Maintain minimum safety clearances: 1200 mm to the ceiling, 500 mm to combustible side walls.
- Connect a 115 mm diameter flue pipe and route to an appropriate chimney system.
- Load sauna stones (sold separately) into the basket; do not exceed 160 kg.
- Optionally retrofit the Stoveman SV1 heat exchanger for integrated hot water heating.
- Read the full user manual before first use; comply with all local fire and building regulations.
🔒 3 Year Warranty Included
What does the "LS" stand for?
"LS" denotes the external firebox configuration — the firebox protrudes through the sauna wall so wood is loaded from an adjacent room (typically a dressing room or relaxation area). This keeps the sauna room completely clean and allows you to stoke the fire without entering the sauna.
What is the difference between the 20R-LS and the 20R-LS Heavy?
The standard 20R-LS uses 5 mm firebox steel, while the Heavy version upgrades to 8 mm on all fire-contact surfaces. The Heavy variant is heavier (112 kg vs 87 kg) and better suited to intensive daily use or commercial environments.
Can I use this for both humid and dry sauna sessions?
Yes. The 160 kg stone capacity means you can throw water generously for a humid, steam-rich session, or use the stove more conservatively for a drier, Finnish-style heat experience.
Are sauna stones included?
No — sauna stones must be purchased separately. The stove accepts up to 160 kg of stones. Always use appropriate sauna-rated stones to avoid cracking and overheating.
Can I install a water heater?
Yes, the Stoveman SV1 heat exchanger is compatible with this stove and can be installed to provide hot water during sessions. It is sold separately.
Is this stove suitable for Germany?
No. The stove holds a CE certificate but not a BimSchV certificate, which is required for wood-burning appliances in Germany. It is intended for markets outside Germany.
Delivery: This item is dispatched from our UK warehouse. At 87 kg, delivery is arranged via a specialist freight/pallet service. You will be contacted to confirm your delivery window. Estimated lead time is 3–7 working days.
Returns: We accept returns within 30 days of receipt for unused, uninstalled items in original packaging. Return freight costs for large items are the buyer's responsibility unless the item is faulty or incorrectly supplied. Please report any damage within 48 hours of delivery with photographic evidence for prompt resolution.
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