Atomic Aquatics ScubaHeat Thermal Protection Device
By Atomic Aquatics | Cold-Water Anti-Freeze Heat Exchanger | Inline Regulator Attachment
Dramatically reduce the risk of regulator freeze-ups during cold-water dives with the Atomic Aquatics ScubaHeat Thermal Protection Device. Specially engineered for severe cold-water environments—including ice diving and winter ocean dives in the Pacific Northwest—ScubaHeat warms compressed breathing air before it reaches your second stage mouthpiece.
Air expanding from high cylinder pressure into the low pressure of your hose drops rapidly in temperature (Joule-Thomson effect), making cold breathing gas dry and prone to causing second-stage freeze-ups. ScubaHeat channels the air through a conductive, coiled heat exchanger loop exposed to the surrounding ocean or lake water, utilizing ambient water heat to warm the breathing gas and prevent internal valve icing.
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Thermodynamic Water Heat Exchanger
Even in near-freezing ocean water (e.g., 4°C / 39°F), the surrounding water is significantly warmer than expanding sub-zero compressed tank gas. ScubaHeat uses high-conductivity metal tubing loops to absorb ambient water heat and continuously warm your breathing gas during every inhalation cycle.
Key Features & Performance Highlights
- Freeze-Up Protection: Warms incoming gas to prevent freezing of second stage internal demand valves during cold-water dives.
- Reduces Cotton-Mouth Dryness: Warming compressed air helps retain humidity in your breathing gas, making inhalation vastly more comfortable.
- Passive Thermodynamic Design: No batteries, moving parts, or maintenance required—operates entirely through natural heat conduction.
- Corrosion-Resistant Metal Construction: Marine-grade construction built to withstand severe saltwater environments and high-pressure dive profiles.
- Universal Regulator Compatibility: Fits inline between standard low-pressure hose connections and primary second stages.
Technical Specifications
| Brand / Manufacturer | Atomic Aquatics |
| Model Name | ScubaHeat Thermal Protection Device |
| Mechanism Type | Coiled Thermal Exchange Heat Sink |
| Thread Connection | Standard 9/16"-18 LP Hose Fitting |
| Primary Function | Air Pre-Heater / Second Stage Free-Flow Prevention |
| Recommended Uses | Cold-Water Ocean Diving, Ice Diving, & Winter Diving |
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