FOGATTI InstaShower 8 Plus RV Tankless Water Heater is built for RV owners who want continuous propane hot water without carrying a tanked heater’s limitations.
This review focuses on the model’s retrofit flexibility, output claims, and the practical tradeoffs that matter in an RV install.
InstaShower 8 Plus Review Summary
The FOGATTI InstaShower 8 Plus makes sense for travelers who want a propane tankless upgrade with multiple door-size options, a remote controller, and a package that already includes a pressure relief valve.
It is especially relevant for families, campers, and owners replacing older Suburban, Atwood, Girard, or Furrion units who want fewer compromises around hot water continuity and retrofit fit.
The strongest reason to buy it is the combination of 55,000 BTU output, a claimed 2.9 GPM maximum, and a design meant to support a wide range of replacement scenarios.
The listing also positions it for high-altitude use up to 9,800 feet, which matters for mountain travel.
The main caution is straightforward: this is still a propane appliance with installation constraints, so buyers need the right cutout, door size, and venting expectations before assuming it is a simple swap.
Review Scorecard
| Category | Score | Rationale |
|---|---|---|
| Retrofit flexibility | 9/10 | Three door size options and broad compatibility claims make it unusually adaptable for RV replacements. |
| Hot water delivery | 8/10 | 55,000 BTU and 2.9 GPM are strong figures for an RV unit, especially for continuous showers. |
| Convenience features | 8/10 | Remote controller, included relief valve, and integrated fan/exhaust details reduce extra accessory planning. |
| Travel versatility | 8/10 | High-altitude support and anti-freeze protection are relevant for real RV use across climates. |
| Installation simplicity | 7/10 | Retrofit-friendly, but the exact door/opening dimensions still require careful matching. |
| Efficiency mindset | 8/10 | Tankless propane operation is better aligned with continuous use than a small storage tank. |
| Overall buyer fit | 8/10 | Strong option for RV families and campers who value long hot-water runs over plug-and-play simplicity. |
Key Features and Specifications of InstaShower 8 Plus
The headline feature is the unit’s tankless propane heating design for RV use.
The listing describes it as a Gen 3 model with a 12V DC setup, making it clearly aimed at mobile applications rather than residential backup use.
For buyers comparing it against tanked heaters, the value proposition is simple: more continuous hot water and less waiting around during a shower.
The spec sheet points to 55,000 BTU of power and up to 2.9 GPM of hot water output.
Those numbers matter because they frame the unit as a higher-output RV tankless heater rather than a bare-minimum replacement.
The listing also says it can provide hot water for over 40 minutes, which is a practical selling point for families or couples who take longer showers or need back-to-back use.
Retrofit support is one of the most useful details here.
The listing says the opening is 13 x 13 inches, with door options of 15 x 15 inches, 15 x 18 inches, and 18 x 18 inches.
It also says the heater can replace Suburban and Atwood 6-gallon tank heaters, as well as Girard and Furrion tankless heaters.
That makes it a candidate for owners trying to modernize an older RV without redesigning the whole rear wall.
Other useful listing details include:
- Pressure relief valve included
- Intelligent remote controller up to 2 meters long
- Built-in forced exhaust fan
- Automatic gas shut-off for accidental flame failure
- Anti-freeze protection
- CSA certification
- High-altitude suitability mode
The practical takeaway is that FOGATTI is selling not just heat output, but also a more complete install package.
That matters in RV products because the hidden cost is often the add-ons, fitment work, and compatibility frustration rather than the heater itself.
Pros and Cons of InstaShower 8 Plus
Pros
- Strong 55,000 BTU rating for RV hot water demand
- Claimed 2.9 GPM output supports longer showers and multiple users
- Three door size options improve retrofit flexibility
- Includes a pressure relief valve and remote controller
- Built for high-altitude and cold-weather concerns
- CSA certification and safety shutoff features add reassurance
Cons
- Installation still depends on matching cutout and door dimensions
- Propane tankless systems require more planning than simple tank swaps
- The listing’s performance claims should be read as manufacturer claims, not a substitute for your specific RV layout
- Buyers who want the simplest possible replacement may prefer a more standardized unit
The biggest upside is that the feature set is coherent.
Nothing here feels decorative.
Each claim points to one of the real pain points in RV water heating: space, fit, hot-water continuity, or climate use.
Who Should Buy InstaShower 8 Plus?
This is a good fit for RV families, campers, and frequent travelers who want hot water that lasts longer than a small storage tank can manage.
It also suits owners of older RVs who are trying to move from a tank heater to a tankless layout without losing retrofit options.
If you are shopping for a replacement and care about door sizing, this model deserves attention.
It is also a sensible choice for buyers who travel into higher elevations or colder conditions.
The listing’s high-altitude suitability mode and anti-freeze protection suggest that FOGATTI is targeting real-world travel problems rather than only campground-in-the-summer scenarios.
Who should skip it?
Owners who want the least complicated install possible should be cautious.
If you are not comfortable verifying the opening, door size, venting path, propane hookup, and 12V requirements, a more conventional replacement may be easier.
Likewise, if you only need occasional hot water and do not care about continuous runs, the benefits of tankless may not justify the added installation consideration.
Installation and Use Cases for InstaShower 8 Plus
Retrofit Compatibility
The strongest practical argument for the FOGATTI unit is the retrofit story.
The multiple door size options and the stated ability to replace common tank and tankless RV heaters mean the product is being positioned for upgrades, not just new builds.
That makes it more appealing to owners who already have a cutout in place and want to avoid a total remodel.
Hot Water for Families
For households with more than one person using the shower back to back, tankless behavior is the core benefit.
The listing emphasizes continuous hot water and the ability to avoid the “wait for the tank to recover” problem.
In family RV use, that matters more than abstract efficiency claims because it changes the flow of a morning routine.
Cold Weather and Altitude
The high-altitude mode and anti-freeze protection matter because RV travel is not stable.
A heater that only looks good in mild weather is less useful than one designed with altitude and freeze risk in mind.
FOGATTI’s listing suggests this model was built to support travel across different climates, which is a real advantage for multi-season owners.
Safety and Convenience
The included pressure relief valve, automatic gas shut-off, forced exhaust fan, and remote controller all point to a product intended to be more complete out of the box.
That does not eliminate installation work, but it reduces the number of extra decisions a buyer needs to make after ordering.
Alternatives to InstaShower 8 Plus
If you are comparing this FOGATTI unit with other RV water heater lines, the closest places to look are established tankless or retrofit-friendly options with similar use cases:
- Girard RV tankless water heater
- Furrion RV tankless water heater
- Suburban RV water heater
- Atwood RV water heater
- PrecisionTemp RV water heater
Girard and Furrion are the most obvious comparison points because the listing itself names them as replacement targets.
Suburban and Atwood remain relevant for buyers moving from traditional tank heaters.
PrecisionTemp is worth a look if you want a broader RV water-heating comparison set.
Is InstaShower 8 Plus Worth It?
Yes, if your priority is a retrofit-friendly RV tankless heater with strong output and travel-oriented features. The FOGATTI InstaShower 8 Plus looks most compelling for owners who want continuous propane hot water, care about door-size flexibility, and need a product that appears designed for real RV replacement scenarios.
If you want a straightforward upgrade and are willing to verify fit carefully, it is a solid contender.
If your install is highly constrained or you want the simplest possible replacement with minimal measurement work, you should compare it against more standardized RV heater options first.
For everyone else, this is a practical, well-targeted tankless choice that answers the right RV-specific problems.
