Steam & Oak Kivi 390 Two Room Sauna House, 3.9 x 2.3m

The Kivi 390 is built from 56mm engineered laminated timber, thicker than most garden saunas. It splits 8.2 m² into two rooms, with double glazed aluminium door and windows.

Specification

• Outside size: 3.9 x 2.3m, 2.50m high
• Rooms: 8.2 m² over two rooms
• Walls: 56mm engineered laminated timber
• Finish: natural, or factory painted in one of two colour schemes, chosen after you order
• Glazing: double glazed aluminium door and windows
• Roof: EPDM rubber membrane and rain gutter included in the price
• Treatment: the natural, untreated finish needs an exterior wood treatment after assembly
• Warranty: 5 year manufacturer's warranty, provided the timber is treated as recommended
• Heater: choose one at checkout, or order the shell only

Choose your heater at checkout

• Shell only. The complete sauna, you source your own heater.
• Harvia Club 15kW. A large floor standing heater built for bigger rooms and heavy use. Harvia rate it for rooms of 14 to 24m³. It runs on a three phase supply only.
• Harvia Club 15kW WiFi. The same heater with app control, supplied with the Harvia door sensor required for remote starting. Three phase only.
• Harvia Pro 20 wood fired. A 24.1kW log burning stove, rated by Harvia for rooms of 10 to 30m³, with a large firebox and a big load of stones. No electrical supply needed. Supplied with a stainless steel chimney, and we confirm the chimney route with you before you order.

Sizing the heater. Harvia size heaters on the room volume, then add 50% for solid log walls and about 1.2m³ for every square metre of glass, because both soak up heat that an insulated panel would not. The Kivi 390 sauna room is a large room in solid 56mm timber with a big double glazed window, so it needs a lot of heater. That takes it past every single phase heater we sell, so we offer the 15kW Harvia Club, which needs a three phase supply, or the Harvia Pro 20 wood stove.

We would rather sell you the right heater than the cheapest one. Tell us where the sauna is going and how you plan to use it, and we will confirm the choice with you before you order.

Before you order: your electricity supply

The electric heaters are not plug in appliances. The Harvia Club heaters need a three phase supply, which most UK homes do not have, so check before you choose one. If you are single phase, the wood fired Pro 20 is the way to heat a room this size. Budget for a qualified electrician and a Part P sign off. The wood stove needs no electrical supply.

Tell us your supply type and main fuse rating when you enquire and we will tell you honestly what will and will not work before you commit.

Factory painted colours

If you choose factory painted, we contact you after you order to pick your colours. The outside walls come in light grey or dark grey, with doors, windows and fascia boards in anthracite. Inside, the sauna stays natural timber. The photos show both options on this sauna.

Delivery and installation

• Kerbside delivery on mainland Great Britain, offloaded by crane, so the lorry needs to get close to your property. Islands are quoted separately.
• Typically 3 to 4 weeks from order. The delivery team contacts you to book the day, and nothing is delivered without your agreement.
• Arrives as a pre-cut kit with numbered parts and assembly instructions.
• Our installers can build it for you. Installation is quoted separately, so you only pay for it if you want it.
• It needs a firm, level base. Ask us if you are not sure what yours needs.