FOGATTI InstaShower 9 Pro RV Tankless Water Heater vs FOGATTI InstaShower Ultra RV Tankless Water Heater: Spec Comparison
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Comparing the fogatti instashower 9 pro RV tankless water heater vs instashower Ultra reveals two strong options for your rig. Both units deliver 66,000 BTU and feature built-in mixing tanks for stable temperatures. They share CSA certification and similar dimensions. The main difference lies in flow rate. The Pro model offers 3.6 GPM, while the Ultra provides up to 3.9 GPM. You also get distinct startup technologies and color options for each.
Key differences
| Aspect | FOGATTI InstaShower 9 RV Tankless Water Heater | FOGATTI InstaShower Ultra RV Tankless Water Heater |
|---|---|---|
| Flow Rate | 3.6 GPM | Up to 3.9 GPM |
| Startup Technology | Standard startup | 0.5 GPM ultra-low flow startup |
| Color | White | Gray |
| Weather Resistance | Standard heat exchange | HydroShield-Tech reinforced weather resistance |
| Model Number | FS10B1S | FS10B1SGD |
Which one should you choose?
Choose FOGATTI InstaShower 9 RV Tankless Water Heater if
- You prefer the standard white finish for your RV exterior.
- You want a model with a simpler startup profile without ultra-low flow features.
- You are replacing a unit that matches the FS10B1S model number.
Choose FOGATTI InstaShower Ultra RV Tankless Water Heater if
- You need the higher maximum flow rate of 3.9 GPM for multiple showers.
- You travel in harsh weather and want HydroShield-Tech for added durability.
- You prefer the gray color option or want the 0.5 GPM startup for energy conservation.
Verdict: Choose the InstaShower 9 Pro if you prioritize the white finish and standard operation. Select the InstaShower Ultra if you need the extra 0.3 GPM flow and enhanced weather resistance. Both models provide reliable hot water for your RV adventures.
Spec Comparison: Pro vs Ultra
Maximum flow rate
The FOGATTI InstaShower 9 Pro delivers up to 3.6 GPM, while the InstaShower Ultra provides up to 3.9 GPM. This higher flow rate on the Ultra model allows for stronger water pressure in your shower and kitchen faucet. You get more hot water simultaneously when multiple people need to use fixtures in your RV. The Pro model still offers strong performance for single users, but the Ultra gives you an extra 0.3 GPM of capacity. This difference matters if you frequently run the bathroom and kitchen at the same time. The Ultra edges ahead for those who want maximum volume.
Startup technology
The InstaShower Ultra features 0.5 GPM ultra-low flow startup technology. This allows the unit to ignite and heat water even when you are using very low flow settings, such as rinsing dishes or washing hands gently. The InstaShower 9 Pro data does not list this specific low-flow startup capability. If you often use low flow settings to conserve water or propane, the Ultra ensures you still get hot water immediately. This feature supports lower energy consumption by matching output to low flow usage. It is a practical advantage for eco-friendly RV adventures and resource conservation.
Weather resistance
Both units operate smoothly at altitudes up to 9,800 feet and handle winds up to 9 on the Beaufort scale. However, the InstaShower Ultra includes HydroShield-Tech for reinforced weather resistance and stormproof reliability. The InstaShower 9 Pro does not mention this specific weather-resistant technology in its specifications. HydroShield-Tech adds an extra layer of durability against harsh outdoor conditions common in RV travel. This makes the Ultra slightly more robust for camping in unpredictable weather. Both fans deliver 300Pa of power, but the Ultra's additional shielding offers better protection for long-term use.
Dimensions and weight
The InstaShower 9 Pro measures 15 inches high by 15 inches long by 14.4 inches wide, weighing 30.9 pounds. The InstaShower Ultra is a perfect cube at 15 inches high by 15 inches wide by 15 inches long. The data does not list a weight for the Ultra model. Both units fit the standard 13x13 inch opening for replacement. The slight width difference is negligible for most RV cutouts. Since the Ultra's weight is not specified, we cannot determine if one is lighter to install. For physical footprint, they are nearly identical, making this a tie for installation space.
Temperature control
Both the InstaShower 9 Pro and the InstaShower Ultra offer precise temperature control within ±1°F. This level of accuracy ensures consistent water temperature, preventing sudden hot or cold shocks. Both units use a mixing tank to further stabilize extreme temperatures. The burner systems on both models adapt to the season with two rows of flames in summer and five rows in winter. Since the temperature precision and seasonal adaptation are identical, neither model has an advantage here. You can expect the same comfortable bathing experience from either unit.
Safety certifications
Both water heaters are CSA certified, ensuring they meet strict safety standards for gas appliances. They both include a 150 PSI pressure relief valve, a pre-filter screen, and automatic gas shut-off in case of flame failure. Both feature forced exhaust fans and anti-freeze protection. The specific safety features and certifications are identical in the provided data. There is no difference in the safety measures listed for either model. You get the same level of protection against overheating, pressure issues, and freezing conditions with either choice.
Which FOGATTI RV Heater Fits You
RVers needing maximum shower flow
The InstaShower Ultra provides up to 3.9 GPM, which is higher than the Pro's 3.6 GPM. This extra flow supports simultaneous use in the bathroom and kitchen without pressure drops. If you prioritize strong water volume for multiple users, the Ultra model delivers the capacity you need for comfortable daily routines in your RV.
Budget-conscious campers seeking efficiency
The InstaShower 9 Pro features Gen 3 technology that balances performance with resource conservation. While both units offer 66,000 BTU, the Pro model is designed for reliable operation at altitudes up to 9,800 feet. It includes a built-in mixing tank and precise temperature control within ±1°F, ensuring stable hot water without excessive energy use.
Travelers in harsh weather conditions
The InstaShower Ultra includes HydroShield-Tech for reinforced weather resistance and stormproof reliability. This feature ensures extended durability against wind and rain, which is critical for outdoor adventures. Combined with a fan that handles winds up to 9 on the Beaufort scale, the Ultra keeps your hot water supply steady even in challenging environmental conditions.
The products compared
FOGATTI InstaShower 9 RV Tankless Water Heater
Best for: RV owners needing high flow and precise temp control
- Flow Rate
- 3.6 GPM
- BTU
- 66,000 BTU
- Temperature Control
- ±1°F
- Certification
- CSA
- Dimensions
- 15 x 14.4 x 15 in
- Use
- RV
View on Amazon: FOGATTI InstaShower 9 RV Tankless Water Heater Affiliate link
The FOGATTI InstaShower 9 Pro RV Tankless Water Heater delivers 66,000 BTU with a flow rate of 3.6 GPM. It features precise temperature control within ±1°F and includes a built-in mixing tank to stabilize water heat. The unit replaces standard 6-gallon tank heaters and includes an intelligent remote controller for convenient operation up to 6.6 feet away. It is CSA certified and designed for reliable performance in RV settings.
Pros
- High 66,000 BTU output supports up to 3.6 GPM flow
- Precise temperature control maintains accuracy within ±1°F
- Built-in mixing tank stabilizes extreme water temperatures
- Includes intelligent remote controller for operation up to 6.6 feet away
- CSA certified with anti-freeze protection and automatic gas shut-off
Cons
- Heavier build at 30.9 pounds compared to lighter tankless options
- Requires specific 13"x13" opening for direct replacement of 6-gallon tanks
- Remote controller limited to 6.6 feet operational range
Good fit if
- You need high flow rate for simultaneous bathroom and kitchen use
- You want precise temperature stability without manual adjustment
- You are replacing a Suburban or Atwood 6-gallon tank heater
Skip if
- You require remote control beyond 6.6 feet distance
- Your RV has only a 10-gallon tank opening without retrofitting
- You prefer a significantly lighter unit for easier installation
Verdict: FOGATTI InstaShower 9 Pro RV Water Heater fits RV owners who prioritize high flow rates and precise temperature stability for comfortable showers.
FOGATTI InstaShower Ultra RV Tankless Water Heater
Best for: RVers needing high flow and altitude performance
- Flow Rate
- 3.9 GPM
- BTU
- 66,000 BTU
- Temperature Control
- ±1°F
- Certification
- CSA
- Dimensions
- 15 x 15 x 15 in
- Use
- RV
View on Amazon: FOGATTI InstaShower Ultra RV Tankless Water Heater Affiliate link
This unit delivers up to 3.9 GPM using 66,000 BTU/hr of power. It maintains temperature stability within ±1°F and includes a built-in mixing tank. The device operates at altitudes up to 9,800 feet and features a remote controller. It fits standard 13x13 inch openings. This model suits RV users needing high flow rates and precise heat control for simultaneous kitchen and bathroom use.
Pros
- High flow rate of up to 3.9 GPM
- 66,000 BTU/hr heating capacity
- Precise temperature control within ±1°F
- Built-in mixing tank for stability
- Operates at altitudes up to 9,800 feet
Cons
- Requires retrofitting for 10-gallon tank replacements
- No smart app connectivity mentioned
- Remote control limited to 6.6 feet range
Good fit if
- You need hot water for multiple fixtures simultaneously
- You camp at high altitudes up to 9,800 feet
- You want precise temperature control within ±1°F
Skip if
- You are replacing a 10-gallon tank without retrofitting
- You require smart app integration
- You need a remote range beyond 6.6 feet
Verdict: FOGATTI InstaShower Ultra RV Water Heater fits RVers needing high flow and altitude performance. It replaces standard 6-gallon tanks directly but requires modification for larger units.
Specifications side by side
| Spec | FOGATTI InstaShower 9 RV Tankless Water Heater | FOGATTI InstaShower Ultra RV Tankless Water Heater |
|---|---|---|
| Flow Rate | 3.6 GPM | 3.9 GPM |
| BTU | 66,000 BTU | 66,000 BTU |
| Temperature Control | ±1°F | ±1°F |
| Certification | CSA | CSA |
| Dimensions | 15 x 14.4 x 15 in | 15 x 15 x 15 in |
| Use | RV | RV |
| Weight | 30.9 pounds | not stated |
| Color | IS 9 Pro, White | IS Ultra, Gray |
| Model | FS10B1S | FS10B1SGD |
Frequently asked questions
Which FOGATTI heater is better for high altitude RV camping?
The InstaShower Ultra is the better choice for high altitude performance. Its design specifically addresses altitude requirements, ensuring consistent heating when you are at elevation. The Pro model focuses more on precise temperature stability rather than altitude-specific adjustments. If you camp in mountainous regions, the Ultra's altitude performance is a key advantage for reliable hot water.
How do the dimensions of the Pro and Ultra models compare?
Both units are nearly identical in height and length, measuring 15 inches for both dimensions. The Pro model is 14.4 inches wide, while the Ultra is slightly wider at 15 inches. This minor width difference means they fit similar spaces, but the Ultra is marginally bulkier. Check your RV cabinet space to ensure the 15-inch width fits comfortably.
Do these heaters use the same model number?
No, they use different model numbers. The InstaShower Pro is model FS10B1S, while the Ultra is model FS10B1SGD. The distinct suffixes help identify each specific unit. You should reference the correct model number when ordering replacement parts or consulting the manual. Keeping these numbers separate ensures you get the right components for your specific heater.
Can I replace my old 6-gallon tank with either unit?
Yes, both units are designed to replace standard 6-gallon tanks. However, the Ultra specifically requires modification for larger units if you are upgrading further. The Pro fits directly as a high-flow replacement. Both provide tankless convenience, but you may need to adjust plumbing or mounting depending on your current setup and the specific model you choose.
What is the weight difference between the two heaters?
The InstaShower Pro weighs 30.9 pounds. The Ultra does not list a specific weight in its published specifications. Since both are compact electric units, they are likely similar in mass. However, you should verify the Ultra's weight before installation if your RV mount has strict weight limits. The Pro's weight is confirmed at just under 31 pounds.
Are both heaters CSA certified for safety?
Yes, both the InstaShower Pro and Ultra feature CSA certification. This safety standard ensures they meet specific electrical and heating requirements for RV use. You can trust both units to operate safely within your vehicle. This certification is a key factor for compliance and peace of mind when installing tankless water heaters in mobile living spaces.
Which model has a white finish versus gray?
The InstaShower Pro comes in a white finish, while the Ultra is gray. This color difference helps you distinguish between the models visually. If you prefer a specific look to match your RV interior, this detail matters. The Pro offers a classic white appearance, whereas the Ultra provides a modern gray option for your bathroom or utility area.