Thermory 6 Person Barrel Sauna No 62 DIY Kit with Window

The Thermory No 62 is a 6-person barrel sauna kit built from thermally modified Nordic spruce, wood that is baked with heat and steam so it resists rot and moisture and stays dimensionally stable without chemical treatment. It has a glass front door and a panoramic rear window, and its 7 ft 6 in. inside diameter is tall enough to stand in. Pre-cut staves and cradles let two people assemble it in about a day with no cutting.

The heater is not included, so you can pick the electric or wood-fired heater that suits the room and your site.

Features

• Thermally modified Northern European spruce with a brushed texture and consistent heartwood color
• Deep 24 in. Thermo-Aspen benches with backrests (per current listing)
• Full glass front door for natural light and a panoramic rear window
• Rain jacket roof cover with exterior trim for year-round outdoor use
• Duckboard floor, heat shield and cable raceway included
• Steel bands and cradles hold the barrel shape as the wood moves with the seasons
• Pre-cut, pre-milled parts: no cutting during assembly

Look inside a Thermory barrel (360 view of the No 54; the No 62 differs in size and layout), click and drag to look around:

Key Specifications

Dimensions and Cutout

What Is Included and What You Will Need

• Included: barrel cradles, body staves, wall panels, glass front door, panoramic window, interior benches, backrest staves, duckboard flooring, fasteners, adhesive roof tape, metal bands, heat shield, cable raceway and rain jacket with trim
• Required: a sauna heater sized for the room, installed to the heater maker's instructions; electric heaters need a dedicated circuit installed by a licensed electrician
• Required: a level, drained foundation
• Optional: under-bench LED lighting, installed by you or your electrician

Installation Notes

Thermory recommends installing the barrel above ground level with a water-resistant layer between the cradles and the base, on a surface that stays level so the door keeps closing properly. Two people should assemble it. Supervise the first heating with the door open, never exceed 90 C (194 F) in the steam room, and clear heavy snow from the roof without damaging the cover. Heater wiring belongs to a licensed electrician, and any wood-fired heater needs its own chimney and clearances. Local zoning and permit rules for accessory structures vary, so check with your town or HOA. Talk to our team about siting and heater selection.

Documentation

• Thermory Barrel Sauna No50 to No63 Assembly Instructions

Frequently Asked Questions

Does it come with a heater?

No. The kit is the sauna room only, so you can choose a heater sized for it. Ask us for a heater recommendation.

How long does assembly take?

Thermory designs the kit to install in about a day with two people, using pre-cut staves and no cutting.

Is there a version without a rear window?

Yes. The No 63 is the same size with a solid rear wall.

Why thermally modified spruce instead of cedar?

Thermal modification bakes the wood with heat and steam, which reduces moisture uptake, shrinking and rot, and gives an even brown tone without chemical treatment.

Warranty

Per current listing: Thermory provides a 2-year limited warranty on the wood structure against construction, manufacturing and material defects. Heaters, lighting, electrical components and glass are warranted separately by their makers (the listing notes that Huum electric heaters carry their own 5-year limited warranty, excluding heating elements).