1. Important Safety Information
Please read and understand all safety instructions before installing, operating, or performing maintenance on this appliance. Failure to follow these instructions could result in property damage, personal injury, or death.
General Warnings
- This appliance is for indoor installation only.
- Ensure proper ventilation as specified in the installation instructions.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Children should be supervised to ensure they do not play with the appliance.
- Hot water increases the risk of scalding injury. Exercise caution when setting water temperature.
CSA Certification
This FOGATTI tankless water heater is CSA certified, ensuring it meets high safety and performance standards. It incorporates multiple safety features including IPX4 waterproof rating, dry-burning prevention, overheat protection, anti-freeze protection, time-out shutdown, and accidental flameout protection.


2. Product Overview
The FOGATTI InstaGas Comfort 170S Series is a compact, high-performance propane gas tankless water heater designed for indoor installation. It delivers up to 7.5 Gallons Per Minute (GPM) of hot water with a heating power of 170,000 BTU, providing instant and endless hot water for multiple applications.

Key Features
- Instant Heating: Provides hot water as it flows through, eliminating the need for preheating.
- Precise Temperature Control: Advanced water servo technology and temperature sensors maintain a temperature difference within ±1°F.
- Compact Design: Measures 25 x 16.3 x 7.3 inches, saving space compared to traditional tank heaters.
- High Efficiency: Features an oxygen-free copper heat exchanger and a four-stage combustion system for optimal performance.
- Multi-Point Supply: Capable of supplying 3-5 outlet points simultaneously.


Video 1: FOGATTI Tankless Water Heater Indoor Overview. This video provides a visual overview of the FOGATTI tankless water heater, demonstrating its features and internal workings for indoor use.
3. Installation
The FOGATTI InstaGas Comfort 170S Series is designed for straightforward indoor installation. It requires a standard 120V AC electrical connection and is compatible with water pressures ranging from 15-150 PSI.
Installation Requirements
- Location: Indoor, wall-mounted. Ensure adequate clearance for ventilation and maintenance.
- Electrical: Standard 120V AC.
- Water Pressure: 15-150 PSI.
- Gas/Water Connection: 3/4" NPT.
- Altitude: Recommended for use below 2000 feet altitude for optimal performance.


4. Operating Instructions
The FOGATTI InstaGas Comfort 170S Series provides on-demand hot water with precise temperature control, ensuring a consistent and comfortable experience.
Temperature Control
The unit features advanced water servo technology and temperature sensors to precisely adjust water flow and gas intake. This system maintains the desired water temperature within ±1°F, preventing fluctuations even when multiple outlets are in use.

Multiple Water Points
This water heater is capable of simultaneously serving 3-5 water points, such as showers, sinks, and appliances, without significant loss of hot water temperature or pressure.

5. Maintenance
Regular maintenance ensures the longevity and efficient operation of your FOGATTI tankless water heater.
Anti-freeze Device
The unit is equipped with an active heating anti-freeze device. If the ambient temperature drops below 5°F (41°F) or if the unit will not be used for an extended period, it is recommended to drain the water inside to prevent potential damage from freezing.

Clean Out Port
The water heater includes a clean out port for periodic maintenance. Refer to the detailed user manual (physical copy) for specific instructions on how and when to clean this port to maintain optimal performance.
6. Troubleshooting
This section provides general guidance for common issues. For detailed troubleshooting steps, please consult the comprehensive user manual provided with your unit or contact customer support.
Common Issues and Solutions
- No Hot Water:
- Check if the unit is powered on. After a power outage or initial plug-in, press the power button on the unit's display.
- Ensure the gas supply valve is open.
- Verify water flow to the unit.
- Inconsistent Water Temperature:
- Confirm the set temperature on the unit's display.
- Check for adequate water flow rate; very low flow can sometimes cause fluctuations.
- Error Codes:
- If an error code appears on the display, refer to the detailed manual for specific code meanings and recommended actions.
7. Specifications
Detailed technical specifications for the FOGATTI InstaGas Comfort 170S Series Propane Gas Tankless Water Heater.
| Feature | Specification |
|---|---|
| Brand | FOGATTI |
| Product Dimensions | 16.3"W x 25"H x 7.3"D |
| Color | Gray |
| Wattage | 43 Watt-hours |
| Voltage | 120 Volts (AC) |
| Maximum Flow Rate | 7.5 Gallons Per Minute |
| Maximum Temperature | 150 Degrees Fahrenheit |
| Heat Output | 170,000 BTU per Hour |
| Efficiency | 0.81 |
| Maximum Operating Pressure | 150 Pound per Square Inch |
| Mounting Type | Wall |
| Item Weight | 45.5 pounds |
| Item Model Number | InstaGas Comfort |
| Finish | Cold-Rolled Steel Casing |
| Installation Method | Wall-Mounted |
| Included Components | Tankless Water Heater x 1, User's Manual x 2 (English and French Version), Quick Installation Poster x 1, Assembly Kit x 1 (Wood Screw x 4, Expansion Bolt x 2, Plastic Wall Plug x 4), Warranty Card x 1 |

8. Warranty and Support
FOGATTI stands behind the quality and performance of its tankless water heaters.
Warranty Coverage
- Full Unit Coverage: 2 years.
- Heat Exchanger Coverage: 5 years.
Please retain your proof of purchase and warranty card for any claims.
Customer Support
Our dedicated customer support team is available to assist you with any questions, concerns, or technical support needs. We offer lifetime technical support for your FOGATTI product.






