FOGATTI InstaShower 7 RV Tankless Water Heater vs FOGATTI InstaShower 8 Plus RV Tankless Water Heater (2026): Key Differences
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This fogatti instashower 7 RV tankless water heater vs instashower 8 plus comparison helps you choose the right propane unit for your RV. Both models deliver endless hot water without a storage tank and share similar dimensions and CSA certification. They also both feature forced exhaust fans and high-altitude readiness. The main difference lies in their power output and flow rate. The 8 Plus offers higher BTU and GPM, while the 7 provides a slightly lower but still robust heating capacity for typical RV use.
Key differences
| Aspect | FOGATTI InstaShower 8 Plus RV Tankless Water Heater | FOGATTI InstaShower 7 RV Propane Tankless Water Heater |
|---|---|---|
| BTU Output | 48,000 BTU | 55,000 BTU |
| Flow Rate | 2.5 GPM | 2.9 GPM |
| Voltage | not listed | 12V DC |
| Remote Length | 6.6 ft | 2 m |
| Temperature Range | 95°F to 123°F | not listed |
Which one should you choose?
Choose FOGATTI InstaShower 8 Plus RV Tankless Water Heater if
- You need a lower BTU output that still supports a 2.5 GPM flow rate.
- You want to see the specific temperature control range of 95°F to 123°F.
- You prefer a model with a 6.6 ft remote controller.
Choose FOGATTI InstaShower 7 RV Propane Tankless Water Heater if
- You require higher hot water output with 55,000 BTU and 2.9 GPM.
- You want explicit confirmation of 12V DC voltage operation.
- You need a longer 2-meter remote controller for easier temperature adjustment.
Verdict: The InstaShower 8 Plus is better if you need maximum hot water flow and higher heat output for multiple simultaneous uses. The InstaShower 7 is a solid choice if your RV's electrical or propane setup aligns with its specific 48,000 BTU capacity and you value the visible temperature range. Both units offer reliable tankless performance for RV travel.
InstaShower 7 vs 8 Plus Specs
Heating power output
The FOGATTI InstaShower 8 Plus delivers 55,000 BTU of heat, while the InstaShower 7 provides 48,000 BTU. Higher BTU ratings allow the unit to heat water more rapidly. This means the InstaShower 8 Plus can maintain hotter water temperatures during colder weather or when multiple fixtures are running simultaneously. The InstaShower 7 offers sufficient power for standard RV showers but has a lower maximum output. If you need faster recovery rates or higher temperature stability in cold climates, the higher BTU count on the 8 Plus provides a tangible performance benefit.
Water flow rate
You get 2.9 GPM from the InstaShower 8 Plus, compared to 2.5 GPM from the InstaShower 7. A higher flow rate means more water volume passes through the heater each minute. This allows for a more robust shower experience, especially if you prefer high-volume spray settings. The InstaShower 7 still provides a comfortable flow for most users, but the 8 Plus handles higher demand better. If you have a large showerhead or need to fill a bucket quickly, the extra 0.4 GPM adds noticeable convenience and speed to your daily routine.
Power voltage requirement
The InstaShower 8 Plus requires 12V DC power to operate its internal components. The InstaShower 7 uses propane for heating but does not list a specific voltage requirement in its published specifications. RV electrical systems vary, so knowing the exact voltage need is crucial for proper wiring. If your RV uses a 12V system, the 8 Plus specs align directly with that standard. For the InstaShower 7, you may need to verify compatibility with your specific RV electrical setup since the voltage data is not provided in the product details.
Temperature control range
The InstaShower 7 allows you to adjust water temperature between 95°F and 123°F using its smart remote. This wide range lets you fine-tune the heat for different uses, from gentle hand washing to hot showers. The InstaShower 8 Plus does not list a specific temperature control range in its published specifications. While both units use propane for heating, the explicit control range on the InstaShower 7 gives you precise management over water heat. If you want clear boundaries on how hot the water can get, the 7 offers documented limits.
Included remote length
The InstaShower 8 Plus includes a remote controller that is up to 2 meters long. The InstaShower 7 comes with a 6.6-foot smart remote. Converting 2 meters to feet gives approximately 6.56 feet, which is nearly identical to the 6.6-foot remote on the InstaShower 7. Both units provide you with a wired remote for adjusting settings from a distance. The difference in length is negligible for practical installation purposes. You get similar convenience for temperature adjustment regardless of which model you choose, as both remotes are long enough for typical RV shower setups.
Altitude performance
Both the InstaShower 8 Plus and the InstaShower 7 feature high-altitude suitability modes that allow operation up to 9,800 feet. They both use staged combustion technology to maintain stable flame and consistent water temperatures at elevation. This ensures you do not lose hot water performance when traveling to mountainous regions. Since both models share this specific altitude rating and technology, neither has an advantage in high-elevation environments. You can rely on either unit to perform consistently whether you are at sea level or on a high plateau.
Which Fogatti InstaShower model fits you
High-flow RV shower users
The InstaShower 8 Plus delivers 2.9 GPM flow rate and 55,000 BTU heating power. This higher output ensures consistent hot water during longer showers. You get more gallons per minute compared to the 7 model. The 12V DC voltage supports standard RV electrical systems. This combination provides faster heating and greater volume for your daily routine.
Budget-conscious RV owners
The InstaShower 7 offers 48,000 BTU and 2.5 GPM flow. This is sufficient for standard RV usage. It includes a 6.6ft remote for temperature control between 95°F and 123°F. The unit features anti-scale protection and staged combustion for stable performance. You get essential tankless benefits without the higher output of the 8 Plus model.
High-altitude travelers
Both models handle altitudes up to 9,800 feet. The InstaShower 8 Plus uses staged combustion to adjust flame size, preventing overheating. This saves propane during high-elevation travel. The 55,000 BTU rating maintains performance where air density drops. You benefit from reliable hot water delivery regardless of elevation changes on your RV trips.
Families needing quick hot water
The InstaShower 7 provides 2.5 GPM flow rate. This supports multiple users in quick succession. The 48,000 BTU output heats water efficiently for dishes and hand washing. It includes a built-in 150 PSI pressure relief valve. The smart remote allows easy temperature adjustments. This model meets typical family RV hot water demands effectively.
The products compared
FOGATTI InstaShower 8 Plus RV Tankless Water Heater
Best for: RVers needing high-altitude hot water
- Fuel Type
- Propane
- Flow Rate
- 2.9 GPM
- BTU
- 55,000 BTU
- Voltage
- 12V DC
- Certification
- CSA
- Dimensions
- 15 x 15 x 15 inches
View on Amazon: FOGATTI InstaShower 8 Plus RV Tankless Water Heater Affiliate link
The FOGATTI InstaShower 8 Plus delivers 55,000 BTU of propane heat for RV showers. It provides up to 2.9 GPM of continuous hot water, eliminating the wait times associated with tank heaters. The unit operates on 12V DC power and includes a built-in pressure relief valve and a 2-meter remote controller. It fits standard 15x15 inch openings and is rated for altitudes up to 9,800 feet.
Pros
- 55,000 BTU output for rapid heating
- 2.9 GPM flow rate for continuous use
- Includes 2-meter intelligent remote controller
- Built-in pressure relief valve for safety
- High-altitude ready up to 9,800 feet
Cons
- Requires 15x15 inch mounting opening
- 12V DC power dependency limits placement
- Propane fuel requires tank management
Good fit if
- You need continuous hot water for multiple showers
- You have a standard 15x15 inch RV opening
- You travel to high-altitude destinations
Skip if
- You only have a 13x13 inch opening
- You prefer electric heating over propane
- You need a unit for residential plumbing
Verdict: The FOGATTI InstaShower 8 Plus RV Tankless Water Heater suits RVers who prioritize long shower times and high-altitude performance. It is a solid upgrade for those replacing smaller tank units with a reliable propane solution.
FOGATTI InstaShower 7 RV Propane Tankless Water Heater
Best for: Compact RVs and high-altitude travel
- Fuel Type
- Propane
- Flow Rate
- 2.5 GPM
- Voltage
- 12V DC
- Temperature Control
- 95–123°F
- Dimensions
- 15 x 15 x 15 inches
- Use
- RV
View on Amazon: FOGATTI InstaShower 7 RV Propane Tankless Water Heater Affiliate link
The FOGATTI InstaShower 7 is a propane-powered tankless water heater designed for RV use. It delivers 2.5 GPM at 48,000 BTU, providing instant hot water for showers or sinks. The unit features a 15x15x15 inch footprint and includes a 6.6 ft remote for temperature control between 95°F and 123°F. It also offers altitude adjustment up to 9,800 feet and built-in antifreeze protection for cold weather operation.
Pros
- Delivers 2.5 GPM flow rate for steady hot water
- Includes 6.6 ft smart remote for easy temperature adjustment
- Operates at altitudes up to 9,800 feet with staged combustion
- Built-in 150 PSI pressure relief valve reduces installation parts
Cons
- Lower 48,000 BTU output compared to the 8 Plus model
- 15x15x15 inch dimensions may not fit all RV spaces
- Propane-only fuel type limits versatility
Good fit if
- You need a compact heater for smaller RV bathrooms
- You travel at high altitudes above 5,000 feet
- You prefer propane fuel for RV camping
Skip if
- You require higher flow rates for multiple simultaneous uses
- You need electric power options for your RV
- You have limited space smaller than 15x15 inches
Verdict: FOGATTI InstaShower 7 RV Propane Heater suits travelers who prioritize compact size and high-altitude performance over maximum heat output. It is ideal for solo travelers or couples in smaller RVs who do not need the higher capacity of the 8 Plus model.
Specifications side by side
| Spec | FOGATTI InstaShower 8 Plus RV Tankless Water Heater | FOGATTI InstaShower 7 RV Propane Tankless Water Heater |
|---|---|---|
| Fuel Type | Propane | Propane |
| Flow Rate | 2.9 GPM | 2.5 GPM |
| BTU | 55,000 BTU | not stated |
| Voltage | 12V DC | 12V DC |
| Temperature Control | not stated | 95–123°F |
| Certification | CSA | not stated |
| Dimensions | 15 x 15 x 15 inches | 15 x 15 x 15 inches |
| Use | RV | RV |
| Size | InstaShower 8 Plus | not stated |
| Color | InstaShower 8 Plus, Black | InstaShower 7, Silver |
| Model | FS08B1SBD | FS07B1S |
Frequently asked questions
Does the InstaShower 8 Plus work better at high altitudes?
Yes, the InstaShower 8 Plus is designed for high-altitude performance. It delivers 55,000 BTUs of heating power, which helps maintain consistent hot water output in thin air. This higher capacity makes it a reliable choice for RVers traveling in mountainous regions where lower pressure can affect heating efficiency.
What is the size difference between the two models?
Both units share identical external dimensions. The InstaShower 7 and the InstaShower 8 Plus both measure 15 inches in width, height, and length. You do not need to worry about fitting a larger unit into your RV space, as they occupy the same physical footprint despite their different internal capacities.
Can I use these heaters in a small RV?
The InstaShower 7 is ideal for compact RVs. It is specifically recommended for travelers who prioritize a smaller form factor. Its 48,000 BTU output is sufficient for solo travelers or couples in smaller vehicles who do not require the maximum heat output or high-flow rate of the larger 8 Plus model.
What fuel do these tankless heaters use?
Both the InstaShower 7 and the InstaShower 8 Plus run on propane. They are designed as propane solutions for RV use. This means you can connect them to your existing RV propane supply system without needing any special electrical hookups or alternative fuel sources.
Is the InstaShower 8 Plus worth the extra capacity?
It is worth it if you need longer shower times. The 8 Plus offers a 2.9 GPM flow rate and 55,000 BTUs. This extra power ensures consistent hot water during extended use. If you replace a smaller tank unit, the higher output provides a more reliable and continuous hot water experience.
Do these models look different from each other?
They differ primarily in color and model designation. The InstaShower 7 comes in silver, while the InstaShower 8 Plus is available in black. Both are part of the InstaShower line, but their distinct color options allow you to choose a finish that matches your RV interior or exterior aesthetic preferences.