Search  for anything...

FOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot Water Heater - Instagas Comfort 180S Series

  • Based on 76 reviews
Condition: New
Checking for product changes
$739.00 Why this price?
Save $59.99 was $798.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: 13 left in stock
Fulfilled by Amazon

Arrives Friday, Jan 24
Order within 5 hours and 56 minutes
Available payment plans shown during checkout

Material Type: 8.1 GPM, Natural Gas


Style: Outdoor Installation


Features

  • Instant Hot Water Supply:FOGATTI tankless water heater will produce continuous hot water instantly; With 8.1 GPM 180,000 BTU, water heater will make a multi-point water supply for your house to meet whole family's water needs
  • Outdoor Installation: This tankless water heater gas is designed for outdoor, equipped with remote control pane indoor; The powerful DC fan inside eliminates the influence of external wind, and will stand hard weather
  • Precise Temp Control: The tankless gas water heater can be burnt in sections to meet the four seasons. Benefiting from the chip and the function of water gas adjustment, the temperature difference of the water can be precisely controlled within 1F
  • Easy Installation: Tankless water heater gas outdoor takes up almost no space with compact size 26.2" x 17.1" x 7.1", adapts standard 3/4" NPT water inlet fittings and air inlet, makes it easy to install
  • Excellent Quality Service: FOGATTI tankless hot water heater is certified CSA, we offer a 2-year coverage for the entire unit and a 5-year coverage for the heat exchanger; If you meet any problems during using, we will serve you wholeheartedly

Brand: FOGATTI


Product Dimensions: 17.1"W x 26.2"H


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


Color: Gray


Wattage: 54 Watt-hours


Brand: ‎FOGATTI


Product Dimensions: ‎17.1"W x 26.2"H


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


Color: ‎Gray


Wattage: ‎54 Watt-hours


Voltage: ‎120 Volts (AC)


Maximum Flow Rate: ‎8.1 Gallons Per Minute


Maximum Temperature: ‎140 Degrees Fahrenheit


Efficiency: ‎>0.81


Style: ‎Outdoor Installation


Maximum Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎FOGATTI


UPC: ‎761770258410 791783658945


Item Weight: ‎43.2 pounds


Country of Origin: ‎China


Item model number: ‎FDG-CF180SAG-NG


Installation Method: ‎Wall-Mounted


Certification: ‎CSA


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


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


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: May 12, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Water heater
Material Type: 8.1 GPM, Propane Style: Outdoor Installation
This was a breez to install and works excelent
Reviewed in the United States on August 10, 2024 by Great quality

  • great buy
Material Type: 8.1 GPM, Natural Gas Style: Outdoor Installation
works great. I love how you can adjust the temperature with the remote sensor. I recommend this product.
Reviewed in the United States on October 29, 2024 by Jennifer W.

  • Horrible, unresponsive customer service & support-Update Below
Material Type: 8.1 GPM, Natural Gas Style: Outdoor Installation
Fogatti customer service and tech support are awful. Amazon's support was AWESOME. We received the item as promised but installed it a couple months after receiving during a remodel project. Once installed, the heater would not operate with low-flow water faucets on sinks. The owners specs stated the item needed .6 gal/min to function. Our sinks are 1 gal/min flow. Heater would only operate when multiple sinks and showers were turned on. Contacted company for support. At first they were responsive. But didn't know how to help us. They didn't know if they have a technician in our area. Requested a replacement, service operator indicated that might not be possible but would submit the request. Then they went silent. We reached out via email for an update. Fogatti's response: "Thanks for reaching out to us. Your request has been updated." We finally resorted to contacting Amazon for help. Within minutes the Amazon customer support helped us with the problem, sent us a replacement water heater and arranged for the return of the defective product. The replacement heater works-but barely. I do not recommend purchasing a Fogatti on-demand water heater-defective products and ineffective customer support. Update 8/1/2023: This is to provide an update to the original review post. On 7/22/2023, Fogotti contacted us by email to follow up to our issue. To remedy the problem, Fogotti offered us a refund of our product. We accepted their offer and thank them for working to find a solution. Our second Fogotti water heater is now installed and is working properly. Thank you, Fogotti, for the total follow through in backing up your product and ensuring we are satisfied. ... show more
Reviewed in the United States on July 18, 2023 by Billy Martin

  • Easy to intall, great for backyard use or ADU
Material Type: 8.1 GPM, Natural Gas Style: Outdoor Installation
It was quite easy to install with the instructions and watched a quick video online. It’s an outdoor unit that doesn't need vent pipe and is waterproof, that saves much time of installation and make it possible to install in the backyard close to sprinkler water. Just bought a service valve kit and a few gas pipes, connectors, and shutoff valve online and at local stores, then easily hooked it up in less than 30 minutes. One thing to remember thought, make sure to shut off your main gas valve to the house before installation for safety purpose and use gas Teflon tape for sealing the connectors. I also added an extra valve to the preinstalled gas pipe in the back yard, total 3 shutoff valves I used, as you can see in the pictures attached. Currently I only connected it to garden hose water and just a shower head for kids to take shower after swimming and shower pets in the garden, but I actually have a plan to set it up for my ADU (Accessory Dwelling Units) in the coming months. Overall, it’s a great purchase, has worked better than expected in past few weeks. ... show more
Reviewed in the United States on October 8, 2021 by Jackie Sun Jackie Sun

  • MY FOGATTI EXPERIENCE - RUN AWAY. DO NOT PURCHASE
Material Type: 8.1 GPM, Natural Gas Style: Outdoor Installation
Update 4 - No response from Fogatti since Sept 29. 43 days? Several times they made promises (in writing) to partially reimburse my installation cost. $200 maximum against the original install ($400) and replacement install ($400) I have lost $600 by originally purchasing their product. Even worse - They Don't Care. UPDATE 3 - NO RESPONSE FROM CUSTOMER NO-SERVICE. LIES ABOUT REIMBURSEMENT FOR INSTALLATION COST. Fogatti will not respond to calls or emails. Case 1234009. After 2 mos of incomprehensible emails Fogatti will not respond after making promises to reimburse $400 installation cost on their defective unit. Had to repack defective unit and return to receive refund which they have completed. WORST EXPERIENCE IN HISTORY OF ANY SELLER ON AMAZON SINCE PRIME PROGRAM BEGAN. Spoke with multiple (12?) Different CS Reps. Emails which repeat previous discussions and impossible to follow directions. RUN AWAY. DO NOT PURCHASE. YOU DO NOT WANT THIS HEADACHE. COMPANY CLEARLY DOES NOT CARE ABOUT CUSTOMER SATISFACTION. UPFATE 2 - RUN . YOU DO NOT WANT TO DEAL WITH THIS COMPANY. Unbelievable struggles with Customer Service. People talking in background. CS Rep cannot find case number. Stumbles through emails. Seriously you Don't want to deal with the headache. Unit I purchased is defective. Shuts off on warm water setting. Ran up to 155 degrees with set point of 115. Request for replacement was going to take 2 weeks. Seriously...Who can wait 2 weeks for hot water? Requested refund. CS Rep had no idea how to process. Furthermore. Another CS Rep advised they would assist in completing my request for $400 fee to install unit. Buy a Rheem and avoid this trouble. Been a week since email and speaking to Customer Service. First off - CR Rep may have been new because he did not understand the problem with heater until approx 15 min of explanation. Problem is simple. If water flow at an appliance - shower valve - is less than 100 percent got - adjusting dial for Warm water - hot water flow shuts off for 5 min. Fogatti wants me to ship unit back and they will then send a replacement. No thank you. Who keeps the packaging after 4 mos? I'll be out of hot water for more than a week - and I'll be paying another $400 to install unit. My advice - stay with a name brand unit that has Techs to trouble shoot. Purchased large outdoor unit in May. Renovating an old farmhouse. Installed by Licenced Plumber. Works fine in 100 percent hot at mixing valve. But temper back hot water to have a "warm" shower and Hot water shuts off. Have contacted Customer Service for assistance. Will update based on resolution. ... show more
Reviewed in the United States on September 8, 2023 by Moonlark Farm

  • Recommended
Material Type: 8.1 GPM, Natural Gas Style: Outdoor Installation
Initially I was recommended an outdoor model by an inexperienced contract plumber. Contacted tech support and what a breath of fresh air. In a timely manner, they replaced it with an indoor model because the location was inside the garage. Had a second bonded/insured competent plumber install with ease and working within minutes. Had to buy additional parts like the exhaust vent etc Nevertheless, the indoor model works like a charm and the brand is unknown to the few plumbers I spoke with in my area. Customer service for Fogatti is World Class. I wish the rest of the customer service industry in America was like Fogatti’s. ... show more
Reviewed in the United States on March 25, 2023 by Pedro Cheas

  • Easy install
I bought this to replace my old tankless water heater, that one had a pilot light and wasn't delivering water in a timely matter any longer. This new one fires up instantly and produces endless streams of hot water plus it's much smaller and more streamlined than the original.
Reviewed in the United States on September 6, 2023 by ken

Can't find a product?

Find it on Amazon first, then paste the link below.