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Are you tired of running out of hot water in your RV just as you’ve lathered up? Does the thought of a lukewarm shower after a long day on the road make you reconsider your adventurous spirit? For many RVers, the traditional tank water heater is a constant source of frustration, limiting showers and dictating a strict schedule. The promise of endless, on-demand hot water feels like a luxury reserved for sticks-and-bricks homes. But what if you could bring that luxury with you? Enter the FOGATTI InstaShower 9 Pro worth it,should I buy FOGATTI InstaShower 9 Pro,FOGATTI InstaShower 9 Pro pros cons,FOGATTI InstaShower 9 Pro vs alternatives,best RV tankless water heater for hot showers,FOGATTI InstaShower 9 Pro honest analysis. This 66,000 BTU powerhouse claims to revolutionize your RV bathing experience. In this comprehensive, hands-on review, we installed and lived with the FOGATTI InstaShower 9 Pro for weeks to answer the burning question: is the best RV tankless water heater for hot showers truly worth the investment? We’ll break down its performance, features, and real-world value so you can make an informed decision.
The FOGATTI InstaShower 9 Pro is a third-generation, propane-powered tankless water heater designed specifically for the demanding environment of recreational vehicles. It represents a direct upgrade from traditional 6 or 10-gallon tank systems, moving to an on-demand model that heats water only when you need it. The core mission is simple: deliver a continuous, strong flow of hot water for simultaneous use in the shower and kitchen, eliminating the “waiting for the tank to reheat” game. With its 66,000 BTU rating—one of the highest in its class—it targets RVers who refuse to compromise on comfort. The unit is manufactured by FOGATTI, a brand under Powtek, a company with two decades of experience in gas appliances. This pedigree is a key part of the FOGATTI InstaShower 9 Pro honest analysis, suggesting a foundation of technical expertise behind the product.

This isn’t just another heater; it’s packed with thoughtful engineering. Here are the features that make the FOGATTI InstaShower 9 Pro worth it for serious consideration:
| Specification | Detail |
|---|---|
| Heat Output | 66,000 BTU |
| Flow Rate | Up to 3.6 GPM |
| Power Source | Liquid Propane |
| Electrical | 12V DC, 46 Watt-hours |
| Dimensions (W x H) | 15″ x 15″ |
| Included Door Size | 15″ x 15″ Black Door |
| Maximum Water Temperature | 123°F |
| Maximum Pressure | 150 PSI |
| Weight | 30.9 lbs |
For a deeper dive into how these specs compare to other models, check out our guide on choosing the right RV water heater.

Unboxing the FOGATTI InstaShower 9 Pro feels like receiving a premium upgrade kit. The packaging is robust, protecting the unit well. Inside, you’ll find everything necessary for a complete installation (excluding propane and water line fittings). The contents include the main tankless water heater unit, a sleek 15″x15″ black exterior door, a 17.64″x17.64″ trim ring to cover the opening edges, the intelligent wired remote controller with mounting hardware, a water filter screen, and all required gaskets and screws. Notably, the inclusion of the 150 PSI pressure relief valve pre-installed is a significant value-add, saving you an extra purchase and installation step. The build quality is immediately apparent—the alloy steel casing feels solid and durable, promising longevity on the road.

Warning: If you are not experienced with RV propane and water systems, professional installation is highly recommended. The process involves safely disconnecting your old heater, ensuring proper gas line sealing (using thread sealant for gas, not Teflon tape), and connecting ½” water lines. The unit is designed as a direct replacement for many models, so it should fit into your existing 15″x15″ opening. Connect the 12V DC power wires and run the remote controller cable to your desired mounting location inside the RV. Ensure all connections are tight and leak-free before proceeding.
Once installed, open a hot water faucet inside the RV to purge air from the lines. Turn on the propane supply. The unit will not activate without water flow. When you turn on the remote controller, the LED will illuminate. Set your desired temperature using the up/down buttons. The first time you run hot water, there will be a short delay (10-15 seconds) as the system primes and ignites. You’ll hear the fan start and the burner ignite.
Daily operation is effortless. Simply use the remote to set your preferred shower temperature. The FOGATTI InstaShower 9 Pro will modulate its flame to maintain that temperature precisely. The built-in mixing tank helps prevent sudden temperature spikes. For best performance, avoid very low flow rates (like a trickle), as the unit needs a minimum flow to activate and maintain stable heating.
The remote allows for precise temperature tuning. If you find your shower a bit too hot or cold, adjust in 1-degree increments. The system’s “seasonal” burner mode is automatic—using two flame rows in summer and five in winter—but being aware of it helps understand why performance feels consistent year-round.
Annual maintenance is crucial. The most important task is descaling the heat exchanger, especially if you have hard water. FOGATTI sells a descaling pump kit for this purpose. Regularly check the inlet filter screen for debris and clean it as needed. Inspect the exterior vent for obstructions. For a detailed walkthrough, see our RV appliance maintenance guide.
No Hot Water: Check propane supply, ensure water is flowing at a sufficient rate, and verify 12V power is connected. Error Code/E8 on Display: Often indicates an ignition failure. Check gas supply and ensure the vent is not blocked. Water Temperature Fluctuates: This can be caused by varying water pressure from your source. Using an RV water pressure regulator can help stabilize input. For persistent issues, consult the manual.

We installed the FOGATTI InstaShower 9 Pro in a 32-foot travel trailer and used it as the primary hot water source for three weeks. Testing included daily showers, dishwashing, and simulating simultaneous use. We monitored start-up time, temperature consistency, flow rate, and propane consumption compared to the old 6-gallon tank heater.
The standout metric is the elimination of the “cold water sandwich” common in some tankless systems, thanks to the mixing tank. Temperature stability was impressive, holding within 1-2 degrees of the set point even when another faucet was turned on. The 3.6 GPM flow rate provided a strong, satisfying shower head stream. The 66,000 BTU heater had no problem keeping up, even with a 50°F groundwater temperature.
Back-to-Back Showers: This is where the FOGATTI InstaShower 9 Pro shines. Two people could shower consecutively with no drop in temperature or pressure, a game-changer for families. Kitchen & Shower Simultaneously: Running the kitchen sink hot water while showering caused a minor, brief temperature dip but recovered within seconds—far superior to a tank system which would be drained. Cold Morning Start-Up: The initial delay for hot water was consistent at about 12-15 seconds, after which it was endless.
FOGATTI’s claims largely held up. The high-altitude performance couldn’t be tested at 9,800 feet, but it performed flawlessly at 5,000 ft. The remote control’s 6.6-foot range is accurate and convenient. The promise of an “unparalleled bathing experience” is subjective, but the combination of endless hot water and precise control certainly makes a strong case. In our FOGATTI InstaShower 9 Pro honest analysis, we found it delivered on its core promises.
How does it stack up against the field? Let’s look at a quick comparison.
| Feature | FOGATTI InstaShower 9 Pro | Competitor A (Standard Tank) | Competitor B (Budget Tankless) |
|---|---|---|---|
| Heating Method | Tankless, On-Demand | Storage Tank | Tankless, On-Demand |
| BTU | 66,000 | N/A (Elec. or ~34k BTU) | ~42,000 BTU |
| Hot Water Supply | Unlimited | Limited (6-10 Gal) | Unlimited (Lower Flow) |
| Key Feature | Mixing Tank, High Flow | Simple, Lower Cost | Lower Price Point |
| Typical Price | $$$ | $ | $$ |
Choose the FOGATTI InstaShower 9 Pro if you have a family, enjoy long showers, frequently boondock without hookups (using your propane), and want the most reliable, high-performance tankless system available. It’s for those viewing it as a long-term comfort upgrade.
Consider a simple tank replacement if you’re on an extreme budget, camp primarily with full hookups and use electric heating, or are a solo traveler content with very short showers. A lower-BTU tankless might suffice for smaller rigs with single users.
Stable incoming water pressure is key for any tankless heater. A good regulator prevents pressure spikes that can cause temperature fluctuations.
While the unit has a screen, installing a whole-RV sediment filter upstream will protect the heater’s internal components and reduce maintenance frequency.
Since it uses propane, a accurate tank gauge helps you monitor usage and avoid running out mid-shower.
This is non-negotiable for longevity. Budget for and use the FOGATTI descaling pump kit each year.
Install the remote controller within easy reach of your main shower or kitchen area for effortless adjustment.
Educate everyone using the RV that they need to turn the hot water knob fully to get a good flow and activate the heater, not just a trickle.
The FOGATTI InstaShower 9 Pro has a current price point of $699.99. While this is a premium investment, the value becomes clear when you consider the included accessories (door, trim, pressure valve, remote) and the performance leap from a standard tank. It’s competitively priced against other high-output RV tankless systems. The best place to purchase is through authorized retailers to ensure warranty validity and genuine product receipt.
FOGATTI offers a standard 1-year limited warranty on the InstaShower 9 Pro. Customer support is accessible, and their parent company’s long history in gas appliances generally translates to knowledgeable service. It’s advisable to register your product upon purchase.
After extensive hands-on testing, the FOGATTI InstaShower 9 Pro delivers a transformative RV hot water experience. Its 66,000 BTU output provides ample heating power, the built-in mixing tank ensures remarkable temperature stability, and the high flow rate makes showers genuinely enjoyable. The package is complete, and the build quality inspires confidence.
So, is the FOGATTI InstaShower 9 Pro worth it? Absolutely, for the right RVer. If your priority is unlimited hot water, superior shower comfort, and you’re making a long-term upgrade to your rig, this is one of the best investments you can make. It earns a strong 4.5 out of 5 stars from us. The minor cons are far outweighed by the daily luxury and convenience it provides.
The FOGATTI InstaShower 9 Pro is a premium, high-performance tankless water heater that successfully brings the comfort of an on-demand home system to the open road, making it a compelling best RV tankless water heater for hot showers for those who value comfort. Click here to see the current price and transform your RV showers.
For RVers who use their rig frequently or full-time, yes. The upfront cost is offset by the endless hot water, improved comfort, and space savings over a tank. It’s an investment in quality of life on the road, not just a replacement part. If you’re a weekend warrior who barely uses hot water, the ROI might be longer.
There’s no comparison in terms of hot water capacity. A 6-gallon tank provides 1-2 short showers before needing 30+ minutes to reheat. The FOGATTI provides continuous hot water. The trade-off is complexity and cost. The FOGATTI is a modern upgrade, while traditional tanks are simpler and cheaper to replace.
For the user, it’s very simple—just set the temperature on the remote. The learning curve is primarily for the installer dealing with gas and water connections. Once installed, operation is intuitive.
The box is remarkably complete. You will need standard plumbing supplies (pipe, fittings, sealant) to connect to your existing lines, and possibly a new exterior vent cap if your old one isn’t compatible. For maintenance, you’ll want to purchase the FOGATTI descaling kit.
It comes with a 1-year limited warranty. Customer support is available through FOGATTI’s channels. Their parent company’s experience generally means support staff understand the product well.
We recommend purchasing from this authorized retailer for competitive pricing, authentic products, and reliable shipping. Always check for bundle deals or coupons that may be available.
It’s designed to operate within a standard propane system pressure (11″ water column). While it has a powerful fan for altitude, consistently low tank pressure (like from a nearly empty tank) can cause ignition or performance issues. Keep your tanks adequately filled.
Consumption varies with usage. A 10-minute shower might use roughly 0.2-0.3 gallons of propane. It’s more efficient than a tank heater in standby mode because it only burns fuel when hot water is actively being used.
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