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FOGATTI Natural Gas Tankless Water Heater Outdoor - Max 8.1 GPM 180,000 BTU, CSA Certified Compact Design On Demand Instant Hot Water Heater - Instagas Comfort 180S Series, New Upgraded

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Availability: In Stock.
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Arrives Tuesday, Jun 2
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Style: Natural Gas, 8.1 GPM, Outdoor (New Upgraded)


Features

  • Instant Hot Water: Say goodbye to preheating delays! FOGATTI tankless water heater delivers continuous hot water instantly, powered by 180,000 BTU and up to 8.1 GPM flow rate. Whether its for showers, sinks, or appliances, even for 3-5 outlet points, it ensures uninterrupted hot water
  • Built for Outdoor Durability: Designed specifically for outdoor installation, this tankless water heater gas features a remote control panel for convenient indoor operation. The bottom-mounted fan enhances safety, durability, and lifespan by preventing smoke backflow and ensuring stable combustion, making it reliable in all seasons
  • Precision Temperature Control: With advanced water servo technology and temperature sensors, the tankless gas water heater precisely adjusts water flow and gas intake to maintain a temperature difference within 1F. The four-stage combustion system ensures consistent comfort, whether its a chilly winter or a hot summer
  • Quick and Easy Installation: The compact design measuring 26.2 x 17.1 x 7.1 inches makes installation hassle-free. The gas tankless water heater is compatible with low water pressure from 15-150 PSI, ensuring smooth operation even in areas with weaker water pressure. Simply connect to a standard 120V AC for seamless operation
  • Trusted Quality and Support: Built with a high-efficiency oxygen-free copper heat exchanger and 304 stainless steel burner, this tankless water heater gas outdoor offers exceptional durability and performance. Certified by CSA and equipped with multiple safety features, it meets the highest safety standards, ensuring reliable and secure operation
  • Reliable Protection and Support: FOGATTI water heater includes 2 years of full coverage for the entire unit and 5 years of coverage for the heat exchanger. Our dedicated customer support team is ready to assist with any questions or concerns, providing peace of mind for you
  • Note: Natural gas tankless water heater is equipped with active heating anti-freeze device, If enviroment temp drop below 5F or not be used for long period, drain the water inside to prevent damage. For optimal performance, recommended for use below 2000 feet altitude

Brand: FOGATTI


Capacity: 8.1 Gallons


Power Source: Natural Gas


Product Dimensions: 17.1"W x 26.2"H


Special Feature: 2 to 5 Years Warranty, 3-5 Point Hot Water Supply, CSA Certificated, Easy Installation and Set, Energy Saving & High Efficiency See more


Power Source: Natural Gas


Special Features: 2 to 5 Years Warranty, 3-5 Point Hot Water Supply, CSA Certificated, Easy Installation and Set, Energy Saving & High Efficiency


Wattage: 54 Watt-hours


Voltage: 120 Volts (AC)


Flow Rate: 8.1 Gallons Per Minute


Maximum Temperature: 140 Degrees Fahrenheit


Heat Output: 180000 BTU per Hour per Foot per Degree Fahrenheit


Efficiency: High Efficiency


Mount Type: Wall


Is Electric: No


Color: Gray


Style Name: Natural Gas, 8.1 GPM, Outdoor (New Upgraded)


Material Type: Natural Gas


Capacity: 8.1 Gallons


Item Dimensions W x H: 17.1"W x 26.2"H


Item Weight: 43.2 Pounds


Brand Name: FOGATTI


Model Number: FOG-PM18OS


Manufacturer: FOGATTI


Manufacturer Warranty Description: 2 Years Whole Unit Warranty, 5 Years Heat Exchange Warranty


Manufacture Year: 2025


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


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 2

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Quality
Style: Natural Gas, 8.1 GPM, Outdoor (New Upgra...
Easy install for plumber and working fine.
Reviewed in the United States on March 29, 2026 by TG

  • Wonderful natural gas heater
Style: Natural Gas, 8.1 GPM, Outdoor (New Upgra...
Great product, just a bit pricey but works great, easy installation, liked the rating for 5° since mine froze due to cold central Florida weather.
Reviewed in the United States on February 9, 2026 by cheryl Northfield

  • Idk
Style: Natural Gas, 8.1 GPM, Outdoor (New Upgra...
Something blew up
Reviewed in the United States on January 23, 2026 by dj domazet

  • You can feel the quality in the components
Style: Natural Gas, 8.1 GPM, Outdoor (New Upgra...
I did my research and the copper heat exchanger and 304 stainless steel burner are what sold me. You're getting premium materials that are built to last. The CSA certification gives me confidence in its safety. Knowing that the core parts are built with high-quality materials, plus the 5-year heat exchanger warranty, makes this feel like a smart long-term investment. It just feels like a solid, well-made product. ... show more
Reviewed in the United States on December 1, 2025 by Jose Dalio Barrios

  • Unbelievably steady temperature – I'm impressed
Style: Natural Gas, 8.1 GPM, Outdoor (New Upgra...
I'm sensitive to temperature changes in the shower, and my old unit was a nightmare. This FOGATTI promises ±1°F and it actually delivers. The advanced water servo tech is real. The water feels the same from start to finish, even if someone else in the house starts using water. The four-stage combustion must be why it's so consistent. It’s the most comfortable shower I've ever had. ... show more
Reviewed in the United States on December 1, 2025 by Dalton

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