Fogatti InstaShower 9 Pro RV Tankless Water Heater – 66,000 BTU

The Fogatti InstaShower 9 Pro RV Tankless Water Heater is a high-output propane water heater designed to provide continuous hot water for RVs, fifth wheels, travel trailers, and motorhomes.

With a maximum input of 66,000 BTU, flow rates up to 3.6 GPM, and a built-in mixing tank designed to smooth out temperature fluctuations, the InstaShower 9 Pro is built for RV owners who want stronger hot-water performance than a traditional 6- or 10-gallon tank water heater can provide.

66,000 BTU Tankless Performance

The InstaShower 9 Pro uses a powerful 66,000 BTU propane burner to heat water only when hot water is requested.

Because there is no traditional storage tank to recover, the water heater can provide a continuous supply of hot water as long as adequate propane, water flow, and 12V power are available.

Fogatti rates the InstaShower 9 Pro for water flow up to 3.6 gallons per minute, making it suitable for larger RVs and heavier hot-water demand.

Built-In Mixing Tank

One of the major differences between the InstaShower 9 Pro and many standard RV tankless water heaters is its built-in mixing tank.

The small internal buffer helps smooth the transition between changing burner output and changing water-flow conditions. This can reduce the hot-and-cold temperature swings sometimes experienced with tankless RV water heaters.

Fogatti specifically positions the 9 Pro as the model for users who want higher flow combined with improved temperature stability.

Adjustable Water Temperature

The included digital controller allows the desired outlet-water temperature to be set between approximately:

95°F to 123°F

Instead of overheating the water and mixing large amounts of cold water at the faucet, the tankless system can be set closer to the desired usable temperature.

Designed for Larger RVs and Higher Hot-Water Demand

The InstaShower 9 Pro is Fogatti’s highest-output model in the current InstaShower lineup.

Fogatti recommends it particularly for:

• Larger fifth wheels

• Class A motorhomes

• Class C motorhomes

• Full-time RV living

• Families or multiple occupants

• Back-to-back showers

• Higher hot-water demand

• Colder incoming-water temperatures

Compared with the InstaShower 7 and 8 Plus, the 9 Pro provides both the highest burner output and highest rated water-flow capacity.

High Altitude Performance

The Fogatti InstaShower 9 Pro is designed for operation at elevations up to approximately 9,800 feet.

This makes it a strong option for RV owners who regularly camp in mountain regions where some propane appliances can experience reduced combustion performance.

Actual performance at altitude can still be affected by propane pressure, incoming-water temperature, airflow, and installation conditions.

Minimum RV Opening

Fogatti specifies a minimum clear installation opening of approximately:

13" x 13"

The water heater is offered with different exterior door configurations to cover a variety of existing RV water-heater openings.

Available door sizes include:

• 15" x 15"

• 15" x 18"

• 18" x 18"

The larger exterior door options allow the InstaShower 9 Pro to cover many openings left behind when replacing conventional RV tank water heaters.

Replacement for Traditional RV Water Heaters

The InstaShower 9 Pro can be used as a retrofit replacement for many traditional RV water heaters, provided the opening, utilities, and installation requirements are compatible.

The available exterior door sizes make it suitable for many former:

• 6-gallon water-heater openings

• 10-gallon water-heater openings

• Larger tank-style water-heater openings

Fogatti notes that the 18" x 18" door provides coverage for many former 10-, 12-, and 16-gallon water-heater openings.

Always measure the existing opening before ordering.

12V DC Operation

The InstaShower 9 Pro requires 12V DC electrical power for the electronic controls, ignition system, fan, and related operating components.

It does not use a conventional 120V electric heating element.

The water itself is heated by LP propane, while the electrical system operates the controls and combustion components.

Water & Gas Connections

Fogatti specifies:

Water Inlet: 1/2"
Water Outlet: 1/2"
Gas Inlet: 5/8" UNF
Fuel: LP Propane
Electrical Supply: 12V DC

The water heater should be installed only after confirming compatibility with the RV's propane, plumbing, electrical, and exterior venting systems.

Water Pressure Range

The InstaShower 9 Pro is designed for water pressures ranging approximately from:

14.5 PSI to 150 PSI

Adequate flow and pressure are necessary for proper tankless-water-heater operation.

Low campground pressure, a weak RV water pump, clogged plumbing, or restricted fixtures can reduce available hot-water flow.

Freeze Protection

The InstaShower 9 Pro includes freeze-protection functionality for cold-weather operation.

However, built-in freeze protection should not be considered a substitute for proper RV winterization when the water heater will be exposed to prolonged freezing temperatures without power, propane, or water circulation.

Digital Temperature Controller

A wired digital controller is included with the water heater.

The controller allows the user to:

• Set desired hot-water temperature

• Monitor heater operation

• Adjust water temperature from inside the RV

Fogatti lists the adjustable temperature range as 95°F to 123°F.

What Is Included

Depending on the selected package and door configuration, Fogatti lists the InstaShower 9 Pro package as including:

• InstaShower 9 Pro tankless water heater

• Built-in mixing tank

• Wired digital temperature controller

• Selected exterior access door

• Matching exterior trim components

• 150 PSI pressure-relief valve

• Installation hardware

• User documentation

Package contents can vary by configuration, so verify the selected door and package before ordering.

Product Specifications

Manufacturer: Fogatti
Model: InstaShower 9 Pro
Internal Model: FS10B1S
Water Heater Type: Tankless / On-Demand
Fuel: LP Propane
Maximum Heat Input: 66,000 BTU/hr
Minimum Heat Input: Approximately 8,500 BTU/hr
Maximum Water Flow: Up to 3.6 GPM
Temperature Range: 95°F–123°F
Electrical Supply: 12V DC
Water Connections: 1/2" inlet and outlet
Gas Connection: 5/8" UNF
Water Pressure Range: Approximately 14.5–150 PSI
Minimum Opening: Approximately 13" x 13"
Available Door Sizes: 15" x 15", 15" x 18", 18" x 18"
Maximum Rated Altitude: Approximately 9,800 ft
Built-In Mixing Tank: Yes
Approximate Weight: 25.6 lbs
Warranty: 2 Years

Why Choose the Fogatti InstaShower 9 Pro?

The Fogatti InstaShower 9 Pro is designed for RV owners who want high-output tankless hot water without the recovery time of a conventional tank-style heater.

Its combination of 66,000 BTU heating capacity, up to 3.6 GPM flow, built-in mixing tank, adjustable digital temperature control, multiple retrofit door sizes, and high-altitude capability makes it particularly well suited for larger RVs and households with heavier hot-water demand.

For customers replacing a traditional 6- or 10-gallon RV water heater and looking for continuous hot water with improved temperature stability, the InstaShower 9 Pro is one of Fogatti's highest-capacity options.