Personal Heating System Vest (PHS)

RINI Technologies’ Personal Heating System (PHS) is a compact, active heat source designed to keep operators warm in cold weather conditions. The system pumps heated water from the Personal Heating Unit (PHU) to a Heating Vest, delivering up to 140W of heat to the user. Temperature is thermostatically controlled using user-adjustable set points. Once the Heating Vest reaches the selected temperature, the PHU automatically regulates output to maintain consistent warmth. Adjustable settings allow the user to reduce clothing layers and regulate heat output based on activity level and changing ambient conditions. Key Benefits: Mitigates cold stress Reduces risk of hypothermia Maintains core body temperature Increases mission duration Enhances operational effectiveness Maintains cognitive skills Technical Specifications: Low Temperature Operation: Antifreeze: −70°F (50% / 50% Propylene Glycol Mix) Unit Dimensions: 3” × 4” × 1.8” Unit Weight: 1.5 lbs IP Rating: IP-67 Thermostatic Set Points: 95°F to 110°F Coolant: Anti-Freeze Power Source: BB-2590/U, 24–28 VDC batteries Battery Endurance: LOW: 95°F / 7+ hours MED: 100°F / 5+ hours HIGH: 104°F / 3+ hours MAX: 110°F / 2+ hours