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FAQ - Forge IndoorUpdated a day ago

What type of sauna is the Forge Indoor?

A traditional Finnish dry sauna, not infrared. The Harvia® Vega Compact heater warms the air and the sauna rocks. You can pour water over the rocks for a brief burst of steam (löyly), but the main experience is high-temperature dry heat.

Can I use it outdoors?

No. The Forge Indoor is for indoor use only. For outdoor use, see the Forge Outdoor.

What's the difference between the Forge Indoor and Forge Outdoor?

Forge IndoorForge Outdoor
Where it goesIndoors onlyOutdoors or indoors
ExteriorBlack painted Canadian HemlockMatte black aluminum over cedar
Exterior size79" H x 43" W x 42" D81" H x 43" W x 41" D
Assembled weightAbout 432 lbsAbout 472 lbs
Crated weightAbout 514 lbsAbout 571 lbs

Both use the same 3.5 kW Harvia® heater, reach the same temperatures, need the same 240V hardwired circuit, fit one person, carry the same warranty, and offer White Glove Installation for $1,300.

How hot does it get, and how long does it take to heat up?

It reaches a usable 170°F in about 25 to 45 minutes from a cold start and can go up to 200°F, powered by its 3.5 kW Harvia® heater.

Does it require an electrician?

Yes. The Forge Indoor is hardwired to a dedicated 240V circuit and must be connected by a licensed electrician. It can't be plugged into a standard outlet.

What electrical circuit does it require?

A dedicated double-pole 240V circuit, typically protected by a 20A double-pole breaker (confirm with your electrician). The heater draws 14.4A. Don't use a GFCI breaker on this circuit.

How many people does it fit?

One person, with a weight limit of about 300 lbs.

What are the dimensions and weight?

  • Exterior: 6'7" H x 3'7" W x 3'6" D (2.00 x 1.10 x 1.08 m)
  • Interior: 6'1" H x 3'3" W x 3'3" D (1.85 x 1.00 x 0.98 m)
  • Assembled weight: about 432 lbs
  • Shipping weight (crated): about 514 lbs

Where can I place it?

In a dry indoor space, on a flat, level floor that can support about 432 lbs and handle some moisture. Placing it near your electrical panel keeps the electrician's work simpler.

How difficult is setup?

About 2 hours with two adults, using basic hand tools and a power drill. The electrical connection is a separate step and must be done by a licensed electrician. To have us build it for you, add White Glove Installation ($1,300) at checkout. It doesn't include electrical work.

What is it made of?

Light-toned, low-resin Canadian Hemlock inside. The exterior is black painted Canadian Hemlock, with a full-length tempered glass door.

What accessories are included?

Sauna rocks, a bucket and ladle, thermometer, sand timer, ergonomic backrest, footrest, and a remote for the RGB ambient lighting.

How does it ship?

By LTL freight in one plywood crate (83" x 48" x 26"). Standard delivery is curbside or garage level and doesn't include moving it inside or assembly.

Does it come with a warranty?

Yes. The cabin has a 2-year warranty against manufacturing defects. The Harvia® heater has a 1-year warranty. Damage from improper installation, electrical work not done by a licensed electrician, or normal wood aging isn't covered.

Always consult a healthcare professional before adding sauna use to your routine. This is not a medical device.

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