Medical Sauna - Nature Series Comparison Table
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| Model: | Nature 4™ | Nature 5™ | Nature 6™ | Nature 7™ | Nature 8 Plus™ | Narue 9 Plus™ |
| Capacity | 1 person | 2 people | 3 People | 3-4 People | 4-6 People | 4-6 People |
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Number of heaters with Ultra Full Spectrum Outdoor Heaters™ - 100X Stronger |
7 | 8 | 9 | 12 | 14 | 15 |
| Type of Heat | Dry Sauna | Dry Sauna | Dry Sauna | Dry & Steam | Dry & Steam | Hybrid |
| Hot/Cold Cleansing System™ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| 100% Natural Canadian Hemlock Construction | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Detox Routine™ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Insulated Airflow System™ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Safe Cool Down System™ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Skin Rejuvenation/ Cleansing System™ |
✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Tempered Glass Door | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Simple Touch LED Control Panel™ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Clasp-together Assembly | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| Speaker System with Bluetooth Connection | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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The World's First 3D Sourround Heat Therapy Outdoor Medical Sauna
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✔ | ✔ | ✔ | ✔ | ✔ | |
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The Industry’s First Hot Yoga Sauna
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✔ | ✔ | ✔ | ✔ | ✔ | |
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Rapid Internal Heating System™
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✔ | ✔ | ✔ | ✔ | ✔ | |
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Energy Efficient Heating System™
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✔ | ✔ | ✔ | ✔ | ✔ | |
| Radio Functionality | ✔ | ✔ | ✔ | ✔ | ✔ | |
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Chromatic Therapy System™
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✔ | ✔ | ✔ | ✔ | ||
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Omni-Directional Heating™
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✔ | ✔ | ✔ | ✔ | ||
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Extra-Thick Walls to Handle Rough Weather
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✔ | ✔ | ✔ | ✔ | ||
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Roof Vent for Extra Comfort
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✔ | ✔ | ✔ | ✔ | ||
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The World's First Hybrid Outdoor Sauna,
Dry & Steam Sauna |
✔ | ✔ | ✔ | |||
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Deep Ergonimic Bench Seating for Extra Comfort
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✔ | ✔ | ✔ | |||
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Interior Reading Light System™
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✔ | ✔ | ✔ | |||
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Silent Heating System™
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✔ | ✔ | ✔ | |||
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Audio Theater System™
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✔ | ✔ | ||||
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Extra-Energy Efficient: 15% Thicker Glass & Wood Panels
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✔ | ✔ | ||||
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Executive SPA Design
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✔ | ✔ | ||||
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Extra-Insulated Airflow System™
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✔ | ✔ | ||||
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Extra-Rapid Internal Heating System™
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✔ | ✔ | ||||
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Full Bench Lounge Seating™
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✔ | |||||
| Interior Dimensions | (WDH): 36" x 36" x 75" | (WDH): 46″ x 41″ x 75″ | (WDH): 56″ x 41″ x 75″ | (WDH): 66″ x 54″ x 75″ | (WDH): 66″ x 64″ x 75″ |
(WDH): 75″ x 69″ x 78″
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Exterior Dimensions with overhang |
(WDH): 40" x 40" x 97" | (WDH): 50″ x 45″ x 97" | (WDH): 60″ x 45″ x 97″ | (WDH): 78″ x 57″ x 97″ | (WDH): 78″ x 67″ x 97″ |
(WDH): 80″ x 73″ x 97″
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| Operating Voltage | 120V/ 20amp |
120V/ 2x20amp |
120V/ 2x20amp |
220V-240V/40-50amp | 220V-240V/40-50amp |
220V-240V/40-50amp
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| Wire Type | One 120V Plug | Two 120V Plug | Two 120V Plug | Hardwired - 220V | Hardwired - 220V |
Hardwired - 220V
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| Watts | Spectrum 2200W | Spectrum 2600W | Spectrum 3000W | Spectrum 3400W/ Stove 6000 Watts |
Spectrum 4000W/ Stove 8000 Watts |
Spectrum 4000W/
Stove 8000 Watts |
| Weight | 265 lbs. | 365 lbs. | 455 lbs. | 525 lbs. | 605 lbs. | 695 lbs. |