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FOGATTI Tankless Water Heater Propane, Indoor Installation Up to 4.0 GPM, 90,000 BTU Instant Hot On demand Water Heater for Homes, Apartments and Commercial Settings, InstaGas Classic 90 Series

  • Based on 69 reviews
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Availability: In Stock.
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Arrives Wednesday, Aug 5
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Material Type: Liquid Propane, Indoor Installation


Style: 4.0 GPM, 90,000 BTU


Features

  • Endless Hot Water: FOGATTI tankless water heater propane delivers a high flow rate of 4.0GPM with 90,000 BTU heating power, providing reliable hot water for 2-3 locations simultaneously
  • Energy Efficient: Featuring a copper heat exchanger and micro-flame technology with negative pressure design, this unit reduces gas consumption and noise, saving you on energy bills while ensuring quiet operation
  • Safety & Durability: FOGATTI propane tankless water heater has been CSA certified with advanced safety features, including dry combustion protection, overheat protection, Anti-Freeze protection, flame failure protection, we offer a 2-year coverage for the entire unit and a 5-year coverage for the heat exchanger
  • Stable Temperature Control: The built-in chip adjusts heating power 1,000 times per second, maintaining water temperature within 2F for a consistently comfortable experience
  • Compact Design: Measuring 22.76 H x 14.57 W x 7.0 D and requires 120V AC, it saves over 50% more space compared to traditional tank heaters, you can install it in most corners of your home
  • Easy Installation: With a 3-inch OD and 3/4" NPT, the venting and piping dimensions for FOGATTI propane water heater tankless are compatible with most households. Professional installation is recommended for best performance

Description

FOGATTI is a trusted brand in USA, known for high-performance tankless gas water heaters. Our products, including RV water heaters and compact kitchen water heaters, offer efficient, on-demand hot water for every home. With energy-saving designs and reliable performance, FOGATTI ensures endless comfort while reducing space and energy costs. Trusted by countless American households. Tankless water heaters provide instant hot water without the need for preheating, saving energy and space. FOGATTI tankless water heaters offer reliable performance, energy efficiency, and endless hot water on demand. With advanced safety features, compact design, and easy installation, they are a great choice for homeowners seeking convenience and cost savings. Hot Water Demand: Choose a model based on the number of people in your household and your hot water usage. Flow Rate: Check the water heater's flow rate (GPM) to ensure it can meet the demand for hot water when multiple outlets are used simultaneously. Power Source: Determine whether you need a natural gas or propane gas water heater based on your energy system. Temperature Rise: Take into account the local water temperature and ensure the model can provide the required temperature rise. Installation Space: Consider the available place for installation.

Brand: FOGATTI


Capacity: 4 gallons


Power Source: Liquid Propane


Product Dimensions: 14.5"W x 22.75"H


Special Feature: 2 to 5 Years Warranty, CSA Certificated, Easy Indoor Installation, Endless Hot Water Supply, Stable Temperature Control See more


Power Source: Liquid Propane


Special Features: 2 to 5 Years Warranty, CSA Certificated, Easy Indoor Installation, Endless Hot Water Supply, Stable Temperature Control


Voltage: 120 Volts (AC)


Flow Rate: 4 Gallons Per Minute


Maximum Temperature: 149 Degrees Fahrenheit


Heat Output: 90000 British Thermal Units


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Wall


Is Electric: No


Capacity: 4 gallons


Item Dimensions W x H: 14.5"W x 22.75"H


Item Weight: 24.5 Pounds


Item Depth: 14.5 inches


Brand Name: FOGATTI


Model Number: HIU-FDG340IN-CS90-LP


Manufacturer: FOGATTI


UPC: 788823734103


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


Item Type Name: Gas tankless water heater


Color: White


Style Name: 4.0 GPM, 90,000 BTU


Material Type: Liquid Propane, Indoor Installation


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 5

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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Top Amazon Reviews


  • Easy installation
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Great replacement for my old 50 gallon hot water heater! I only wish I had bought it sooner!
Reviewed in the United States on March 1, 2026 by Teresa Suskey

  • Really fast delivery. Arrived 1 week earlier than expected
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
I suggest taking the time to remove the 4 screws holding the front panel- 2 on top and 2 on bottom. The fan plug was not plugged in and of course, the system wouldn't fire up until I discovered that it wasn't, and I connected it. I'm suggesting inspecting the wiring etc. inside.
Reviewed in the United States on August 19, 2023 by Barbara S.

  • DO NOT PURCHASE THIS PRODUCT!!!
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Purchased this product, delivery was OK. Installed product, no problem. Plugged product in nothing happened. Tried calling Amazon Customer Service, unable to find phone number for customer service. Called Fugatti customer service and was told "We are having problems with this product. Please return product to Amazon and they will replace the product. Finally after an hour of searching I found phone number for amazon. I explained the situation to a non english speaking customer service person. They told me I would have to wait for a refund and I should purchase the same Item gain. Its been over a month since I had to repurchase the item. In the mean time I am out $850.00 waiting for a return. According to the web site they received the Item but have not credited the money. I had to buy another unit because I had installed and made room for this particular unit. In closing: No customer service, Manufacturer is aware ion issues with unit, Amazon is becoming unresponsive and does not care about customer service. Like I said STAY AWAY FROM FUGATTI ... show more
Reviewed in the United States on October 11, 2023 by Placeholder

  • It works better than you think it will
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Easy to hook up and so easy a cave man could do it lol
Reviewed in the United States on March 9, 2023 by Raymond L.

  • Warm water
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Very happy with it was easy to install keeps up with my shower even heat dose the job
Reviewed in the United States on June 3, 2024 by Gary T Nordby

  • Worked to 3 years... then quit :-(
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Worked great for 3 years, then started showing an E1 error. Have to turn the water on and off several time before it finally starts hearing. Can't figure out what the problem is, I'll need to buy a new one. so sad.
Reviewed in the United States on October 25, 2025 by Rockface

  • Good water heater for the money!
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
Purchased the system back in October of 2022. Now it's February 2026, and the system is still working great!! The only issue I have is anytime the power go out I have to reset the power button. Luckily, I installed it in a spot where it's easily accessed to reset.
Reviewed in the United States on February 7, 2026 by George

  • customer service excellent
Material Type: Liquid Propane, Indoor Installation Style: 4.0 GPM, 90,000 BTU
used as my water heater for 3 bedroom house ,have not run out of hot water yet
Reviewed in the United States on January 29, 2023 by Sochojr90263

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