The Crucible
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The Complete Installation.
The Protocol, Fully Built
A cold plunge alone gives you cold. A sauna alone gives you heat. Neither alone gives you contrast.
The Crucible pairs the Forge Two outdoor cedar sauna with The Tempest Pro cold plunge into a single, complete system. Two flagship units. One system. One price. Built for those who want the protocol at the highest level.
What's in This Bundle
Flagship outdoor Red Cedar sauna built for permanent installation. 3–4 person capacity. Panoramic full-width tempered glass front. Premium red cedar construction. All-season outdoor use. WiFi heater option available.
Premium cold plunge constructed from high-grade acrylic. 1HP integrated chiller with heating and cooling holds 36–107°F automatically. No ice. Touch control panel. Built-in ozone disinfection, colored underwater lighting, and app control via Wi-Fi and Bluetooth. All-season outdoor rated.
Why Both. Why Together. Why Daily.
Traditional dry heat from an outdoor cedar sauna delivers an intense thermal load — deep sweat, cardiovascular demand, and heat shock protein activation. The Forge Two gives you this in a 3–4 person panoramic cedar installation — the full Finnish sauna experience at the highest residential level.
Then you step into The Tempest Pro. Cold immersion rapidly constricts blood vessels and triggers a surge in norepinephrine of up to 300% — sharpening focus and alertness. Dopamine rises significantly — climbing up to 250% and staying elevated for 2–4 hours. This is the neurochemical cascade that elite athletes, performance coaches, and longevity practitioners have built daily rituals around.
The Crucible gives you the maximum version of this protocol. Two to three cycles. Thirty minutes. Every morning. Nothing above this. Nothing close.
The Daily Protocol
15–20 min in the Forge Two. Traditional dry cedar heat. Deep sweat. Heat shock proteins activate. Endorphins release.
Cedar Heat2–3 min in The Tempest Pro. Norepinephrine surges up to 300%. Dopamine climbs & stays elevated for hours. Inflammation clears.
36–41°FRest 5–10 min. Repeat for 2–3 cycles. Finish cold for alertness, heat for relaxation. Consistency over intensity.
2–3 CyclesThe Math. The Setup. The Protocol.
You could piece it together. A cold plunge. A flagship cedar sauna. Separate orders. Separate timelines. Separate coordination. Or you can start with a system.
The Crucible at $32,999. That's $999 less than purchasing each unit individually. One order. One point of contact. White-glove installation available. And more importantly — one protocol.
Your first 2 weeks are structured from day one in our 14-Day Protocol Guide, so you're not guessing how to use it.
The math is simple. The setup is seamless. The protocol is complete.
Everything That Ships With This Bundle
- Complete Forge Two cedar structurePre-assembled red cedar panels, panoramic full-width tempered glass front, stainless hardware
- Assembly hardware and instruction manualAll hardware and step-by-step instructions included
- The Tempest Pro with 1HP integrated chillerFill, plug in, and it holds 36–107°F automatically — no ice ever
- Touch control panel + Tuya / Smart Life app (Wi-Fi & Bluetooth)Control temperature and settings from the tub or your phone
- Colored underwater LED light + built-in ozone disinfectionAmbiance and water hygiene built in — no add-ons required
- 2 chrome jets + 2 water returns + chrome drainerFull hydrotherapy hardware included
- Insulated cover + 2 replacement filtersIncluded in the box — keeps temperature stable between sessions
- Delivery inspection guides for both unitsSent before each arrives so you know exactly what to check
- 14-Day Contrast Therapy Protocol GuideDaily session structures, temperature targets, and progression guidance from day one
The Forge Two — Key Features
- Premium Red Cedar — 3–4 Person CapacityThe Forge Two is the flagship outdoor cedar sauna. Natural red cedar — moisture-resistant, antibacterial, and aromatic. Dimensionally stable in temperature extremes. Built for permanent outdoor installation and designed to last decades.
- Panoramic Tempered Glass FrontFull-width panoramic glass transforms your backyard into a showpiece. The defining visual element of The Crucible. An architectural statement, not just a heat box.
- Traditional Dry HeatThe full Finnish sauna experience. Intense dry heat that produces deep sweating, cardiovascular response, and heat shock protein activation.
- WiFi Heater Option — Humm Drop 9KWSelect the Humm Drop add-on for WiFi control and remote operation. Preheat your Forge Two from your phone before your morning session. Scheduled sessions. Remote monitoring.
- All-Season Outdoor EngineeringRed cedar resists moisture, handles freeze-thaw cycles, and remains dimensionally stable through all seasons.
- Flexible Power ConfigurationsSupports 380V, 220–240V, and 110V electrical configurations depending on heater selection and site requirements.
The Tempest Pro — Key Features
- Integrated 1HP Chiller with Heating & Cooling — No Ice. Ever.Fill with water, plug in, set your temperature, and it holds 36–107°F automatically. Heating and cooling in one unit. No ice to buy, store, or haul.
- 36–107°F Precision Touch ControlSet your exact target from the touch panel on the tub or via the Tuya / Smart Life app over Wi-Fi or Bluetooth. Temperature holds without fluctuation.
- Built-In Ozone Disinfection + Paper Core FiltrationActive water sanitation and dual-stage filtration keep the water clean between sessions without chemicals.
- Colored Underwater LED Light + LED Tub LightAmbient lighting built into the plunge — no separate accessories needed.
- 2 Chrome Jets + 2 Water Returns + Chrome DrainerFull hydrotherapy hardware. Chrome finish throughout.
- Insulated Cover IncludedKeeps temperature stable between sessions and reduces energy draw.
- All-Season Outdoor Rated — Standard Outlet110-120V / 60Hz, 1150W, 15A. Weather-resistant for permanent outdoor installation alongside the Forge Two.
Site and Foundation Requirements
- SurfaceFlat, level, solid base required. A concrete pad, compacted gravel base, or existing deck all work well. At 1,350 lbs, the surface must be stable and not shift over time.
- ElectricalA dedicated circuit matching your chosen heater voltage is required. Must be installed by a licensed electrician before delivery. Contact us for guidance on your specific configuration.
- ClearanceAllow adequate clearance on all sides for airflow and access. Keep away from overhanging branches or structures.
- DrainageSite should drain away from the sauna base. Avoid low-lying areas that collect standing water.
Bundle Specifications
| Sauna | Forge Two — 3–4 person outdoor Red Cedar, panoramic glass front |
| Sauna Material | Premium Natural Red Cedar |
| Sauna Heating | Electric or wood-burning (contact us for wood-burning option) |
| Sauna Electrical | 380V, 220–240V, or 110V |
| Sauna Dimensions | 86"H × 81"W × 86"D / 219H × 206W × 220L cm |
| Sauna Weight | 1,350 lbs |
| Sauna Use | Outdoor — all-season |
| Sauna Lead Time | 15–60 business days |
| Sauna Warranty | 5 years — included free |
| Heater Options | HomeCraft Revive 9KW · Humm Drop WiFi 9KW · select above |
| Cold Plunge | The Tempest Pro — 1HP chiller with heating & cooling, full immersion |
| Plunge Temperature | 36–107°F (2–42°C) — held automatically, no ice required |
| Plunge Dimensions | 76.8"L × 31.5"W × 28"H / 195L × 80W × 71H cm |
| Plunge Packaging Dimensions | 205L × 90W × 90H cm |
| Plunge Weight | 331 lbs |
| Plunge Material | High-grade acrylic |
| Plunge Electrical | 110-120V / 60Hz, 1150W, 15A — standard outlet |
| Plunge Filtration | Paper core filter system (2 filters included) |
| Plunge Sanitation | Built-in ozone disinfection device |
| Plunge Controls | Touch control panel + Tuya / Smart Life app (Wi-Fi & Bluetooth) |
| Plunge Lighting | Colored underwater light + LED tub light |
| Plunge Jets | 2 chrome jets + 2 water returns + 1 chrome drainer |
| Plunge Cover | Insulated cover included |
| Plunge Use | All-season outdoor rated |
| Plunge Lead Time | 15–30 business days |
| Plunge Warranty | 1 year — included free |
| Shipping | Free freight — Continental U.S. and Canada, both units |
| Installation | White-glove installation available — delivery, electrical coordination, and full assembly of sauna |
| Bundle Savings | $999 vs. buying Forge Two + Tempest Pro separately |
The Forge Two ships as the cedar structure only. Select your heater above: HomeCraft Revive 9KW or Humm Drop WiFi 9KW. The Humm Drop includes WiFi control and a remote. Preheat your sauna from your phone before stepping outside.
Add white-glove installation to have our team handle full delivery, assembly, and electrical coordination.
15–60 business days. Both units ship separately, but we coordinate both shipments and send tracking information.
Delivery is curbside for both units. Select our white-glove installation add-on to have our team handle moving, placement, full assembly, and electrical coordination on-site.
The Forge Two includes a comprehensive 5-year warranty covering defects in materials and workmanship. The Tempest Pro is covered for 1 year from delivery. Report any defect within 7 days of delivery with photo documentation — we arrange repair, replacement, or refund.
Not covered: Normal wear, improper installation, misuse, or external damage.
To make a claim: Email warranty@frostforgedwellness.com with your order number, description, and photos.
Frequently Asked Questions
What does white-glove installation cover?
Everything. White-glove installation covers delivery coordination, electrical coordination and complete on-site assembly for the Forge Two. Nothing left for you to handle. Select it from the Delivery and Installation options above.
Does the bundle include a heater?
The Forge Two structure ships without a heater. Add the HomeCraft Revive 9KW or the Humm Drop WiFi 9KW from the Heater variant above. The Humm Drop includes WiFi control and a remote. The Tempest Pro integrated chiller is fully included — no separate purchase needed.
Does The Tempest Pro require ice?
No. The Tempest Pro includes a 1HP integrated chiller. Fill with water, plug in, set your target temperature, and it holds 36–107°F automatically. No ice to buy, no ice to store, no ice runs — ever.
Can I control The Tempest Pro from my phone?
Yes. The Tempest Pro connects via Wi-Fi and Bluetooth through the Tuya or Smart Life app. Set and monitor your temperature remotely before you're ready to plunge.
What electrical work is required?
A dedicated circuit matching your chosen heater voltage must be installed by a licensed electrician at your installation site before the sauna arrives. The Forge Two supports 380V, 220–240V, and 110V configurations. Contact us for guidance on the right configuration for your site. White-glove installation coordinates all electrical planning for you.
What foundation do I need?
A flat, level, solid base — a concrete pad, compacted gravel base, or existing deck all work well. At 1,350 lbs, the Forge Two requires a surface that will not shift or settle over time. Soft ground or grass is not suitable.
Will the Forge Two hold up in winter?
Yes. Red cedar is naturally suited for outdoor year-round use. It resists moisture, handles freeze-thaw cycles, and remains dimensionally stable in temperature extremes.
Why buy The Crucible instead of separately?
You save $999 vs. our individual prices. You get coordinated delivery, one point of contact, white-glove installation option, and our 14-Day Protocol Guide. The Crucible is the complete installation.
What is the return policy?
All sales are final for non-defective products. Defects must be reported within 7 days of delivery with photo documentation — we arrange repair, replacement, or refund. Delivery inspection guides are provided before each unit arrives.
Want to understand the science behind contrast therapy? Read The Research or see our Science page for the peer-reviewed evidence.