Description
Model: FS08B1SA
Type: On-Demand / Tankless Water Heater
Fuel: LP Gas (Propane)
Capacity: 2.9 GPM (Gallons Per Minute)
Ignition: Automatic Electronic Pulse Ignition
BTU: 55,000
Voltage: 12V DC
Weight: 25 lbs
Dimensions (Unit): 15” H x 15” W x 15.4” D
Dimensions (Rough Opening): 13” H x 13” W
Includes: Wired Digital Controller, Mounting Hardware
Does Not Include: Access Door (Conversion Kit may be required when replacing Atwood/Dometic/Suburban units)
The InstaShower FS08B1SA delivers endless hot water on-demand with intelligent microcomputer control for maximum safety and performance. Simply set your desired temperature, press the start button, and enjoy a steady flow of hot water.
• Designed with a mixing tank for stable water temperature
• Forced exhaust system ensures safe indoor operation by venting flue gases outdoors
• Equipped with an anti-dust intake net for cleaner airflow
Key Features & Benefits
• Constant Temperature System – Maintains stable hot water with microcomputer control
• Low Startup Water Pressure – Easier use in RV or off-grid applications
• Flameout Protection – Automatically cuts off gas if the flame goes out
• Overheat & Blockage Safety – Fan increases speed if exhaust is blocked, preventing harmful gases
• Automatic Shutoff – Stops combustion if water supply is interrupted
• Intelligent Safety Monitoring – Real-time system checks for faults with automatic shutdown
• Advanced Fault Code Display – Simplifies troubleshooting and maintenance
• Easy Installation – Compact, RV-ready design
• Limited 2-Year Warranty from Coleman-Mach
Compatibility Note:
A conversion access door kit may be required if replacing older Atwood, Dometic, or Suburban water heaters due to dimension differences.