Sun Home cold plunges are constructed using different materials and build methods depending on the model. This article outlines how each system is built and what materials are used.
Standard (Inflatable) Cold Plunge
The inflatable cold plunge uses a flexible, air-supported structure designed for ease of use and transport.
Construction Details:
- Made from multi-layer reinforced PVC
- Air-filled chamber walls provide structure and shape
- Soft-sided design that remains stable when properly inflated
Material Characteristics:
- Lightweight and flexible
- Resistant to punctures under normal use
- Easy to deflate, store, and transport
Interior Surface:
- Smooth, waterproof lining
- Non-porous for easy cleaning
Cold Plunge Pro & Apex
The Pro and Apex models use a rigid, fixed-body construction with integrated structural and insulation layers.
Construction Details:
- Hard-shell exterior for structural stability
- Reinforced internal frame to support full water weight
- Fixed, non-collapsible design
Material Characteristics:
- High rigidity for long-term durability
- Resistant to deformation and environmental exposure
- Built for consistent, repeated use
Interior Tub:
- Non-porous, rigid basin
- Smooth, easy-to-clean surface
- Maintains shape under continuous cold conditions
Key Material & Build Differences
| Feature | Inflatable | Pro & Apex |
|---|---|---|
| Structure | Air-supported, flexible | Rigid, hard-shell |
| Primary Material | Reinforced PVC | Composite / rigid shell |
| Frame | Air-filled walls | Reinforced internal frame |
| Insulation Type | Air-based | Integrated insulation layers |
| Portability | High (deflatable) | Fixed position |
| Interior Surface | Flexible lining | Rigid, non-porous tub |
| Plumbing | External connections | Integrated system |
Insulation
- Inflatable: Air within the chamber walls provides basic insulation
- Pro & Apex: Built-in insulation improves temperature retention and efficiency
Plumbing & Integration
- Inflatable: Simplified external connections for chiller and filtration
- Pro & Apex: Integrated plumbing using commercial-grade components
Summary
Inflatable and hard-shell cold plunges use fundamentally different construction methods. Inflatable models rely on air-supported structure and flexible materials, while Pro and Apex models use rigid construction, integrated insulation, and reinforced framing for long-term performance.
