# Finnmark Designs FD-3 Full Spectrum Infrared Sauna

> Finnmark Designs FD-3 Full Spectrum Infrared Sauna is a large sauna from Finnmark Designs infrared saunas. It uses infrared heat, seats up to 4, measures 46 × 72 × 78 in outside (L × W × H), and is rated to reach 170 °F. Lowest in-stock price on file: $6,495 at Haven of Heat (checked Oct 7, 2026).

- Line: [Finnmark Designs infrared saunas](https://saunagrid.com/lines/finnmark-designs-infrared/)
- Category: [Saunas](https://saunagrid.com/compare/sauna/)
- Size tier within its line: large
- Status: current
- Data confidence: inferred (last verified 2026-10-07; [what this means](https://saunagrid.com/how-we-compare/#confidence))
- Page: https://saunagrid.com/products/finnmark-designs-infrared-fd-3-full-spectrum/

## Specifications

| Spec | Value | Source |
|---|---|---|
| Model / SKU | not published |  |
| Heat | infrared | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Infrared spectrum | far, mid, near | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Setting | not published |  |
| Shape | not published |  |
| Seats | 4 | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Outside size (L×W×H) | 46 × 72 × 78 in | [saunakits.com](https://saunakits.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) (retailer, page, 2026-10-07) |
| Inside size (L×W×H) | 41.6 × 67.2 × 70.5 in | [saunakits.com](https://saunakits.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) (retailer, page, 2026-10-07) |
| Weight | 488 lb | [saunakits.com](https://saunakits.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) (retailer, page, 2026-10-07) |
| Power | not published |  |
| Voltage | 240 | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Circuit | 15 A | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Plugs in | no | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Top temperature (claimed) | 170 °F | [saunakits.com](https://saunakits.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) (retailer, page, 2026-10-07) |
| Heater | not published |  |
| Heater included in the price | not published |  |
| Wood | red cedar, aspen | [finnmarkdesigns.com](https://finnmarkdesigns.com/product/3-4-full-spectrum-infrared-sauna-2022/) (brand, page, 2026-10-07) |
| Thermally modified wood | not published |  |
| Wall / stave thickness | not published |  |
| Arrives | not published |  |
| Electrical safety listing | not published |  |
| Warranty: cabin | 10 years | [finnmarkdesigns.com](https://finnmarkdesigns.com/infrared-sauna-warranty/) (brand, page, 2026-10-07) |
| Warranty: heater | lifetime | [finnmarkdesigns.com](https://finnmarkdesigns.com/infrared-sauna-warranty/) (brand, page, 2026-10-07) |

## Accessories made for this model

- [Finnmark Designs FD-3 Waterproof Sauna Cover](https://saunagrid.com/products/finnmark-designs-accessories-fd-3-waterproof-sauna-cover/) (weather cover) — $1,198

## Where to buy

| Store | Price (USD) | Availability | Checked | Link |
|---|---|---|---|---|
| Haven of Heat | $6,495 | in stock | 2026-10-07 | [View at Haven of Heat](https://havenofheat.com/products/finnmark-designs-3-4-person-full-spectrum-infrared-sauna-fd-kn003) |
| Nordica Sauna | $6,495 | in stock | 2026-10-07 | [View at Nordica Sauna](https://saunakits.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) |
| Peak Primal Wellness | $6,495 | in stock | 2026-10-07 | [View at Peak Primal Wellness](https://peakprimalwellness.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) |
| Recovery For Athletes | $6,495 | in stock | 2026-10-07 | [View at Recovery For Athletes](https://www.recoveryforathletes.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) |
| Select Fitness | $6,495 | in stock | 2026-10-07 | [View at Select Fitness](https://selectfitness.com/products/finnmark-designs-fd3-full-spectrum-4-person-infrared-sauna) |
| Sun Valley Saunas | $6,495 | in stock | 2026-10-07 | [View at Sun Valley Saunas](https://sunvalleysaunas.com/products/finnmark-fd-3-4-person-full-spectrum-infrared-sauna) |
| Topture | $6,495 | in stock | 2026-10-07 | [View at Topture](https://topture.com/products/finnmark-fd-3-full-spectrum-infrared-sauna) |

Prices are re-checked weekly; a date more than a month old means the store could not be re-read.

## The equivalent in other lines

Same category, same size tier (large), different line:

- [Almost Heaven Appalachia 6 Person Cabin Sauna (electric)](https://saunagrid.com/products/almost-heaven-outdoor-appalachia-6-person-cabin-electric/) — $12,650
- [Almost Heaven Appalachia 6 Person Cabin Sauna (wood-fired)](https://saunagrid.com/products/almost-heaven-outdoor-appalachia-6-person-cabin-wood/) — $16,934
- [Almost Heaven Hinton 2-3 Person Infrared Sauna](https://saunagrid.com/products/almost-heaven-infrared-hinton-2-3-person/) — $6,840
- [Almost Heaven Tyrol Indoor Sauna, Large 4-5 Person](https://saunagrid.com/products/almost-heaven-indoor-tyrol-large-4-5-person/) — $6,792
- [Almost Heaven Tyrol Indoor Sauna, Large View 4-5 Person](https://saunagrid.com/products/almost-heaven-indoor-tyrol-large-view-4-5-person/) — $9,431
- [Almost Heaven Himalaya Salt Indoor Sauna, Corner 4-5 Person](https://saunagrid.com/products/almost-heaven-indoor-himalaya-salt-corner-4-5-person/) — $9,712
- [Almost Heaven Himalaya Salt Indoor Sauna, Large 6 Person](https://saunagrid.com/products/almost-heaven-indoor-himalaya-salt-large-6-person/) — $9,743
- [Almost Heaven Timberline Outdoor Sauna, Large (Yukon) 4-5 Person (electric)](https://saunagrid.com/products/almost-heaven-outdoor-timberline-large-yukon-4-5-person-electric/) — $17,354


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SaunaGrid lists home saunas from every brand side by side, with a source for every spec and a date on every price. [How we compare](https://saunagrid.com/how-we-compare/). Data as of 2026-10-10.