InstaShower 8 Plus
RV Tankless Water Heater
$519.99
$529.99
Save (%)
A straightforward upgrade from a limited tank heater.
InstaShower 8 Plus delivers 55,000 BTU output and up to 2.9 GPM of continuous hot water. It supports common replacement-door sizes, winter freeze protection and high-altitude operation for everyday RV travel.
View all features ↓55,000 BTUOn-demand propane heating
Up to 2.9 GPMContinuous hot-water flow
95–123°FSelectable outlet temperature
Up to 9,800 ftHigh-altitude operation
Best for mid-size travel trailers and Class C RVs with regular family shower demand and a straightforward tankless replacement.
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BACKED BY FOGATTI
Official WarrantyAutomatically activated with your direct order.2-year warranty · Original parts included
Reference valueReference value $60.00$0.00
Included
No forms · Latest-batch priority
Details
Original parts included
Your appliance, its original components and all original accessories included with your purchase are covered against defects in materials and workmanship.
2-year warranty
No separate registration required
Your direct order is your proof of purchase. Use your order number for warranty support—no registration form needed.
Priority for the latest available production
Direct orders receive priority for the newest available production batches for the selected model, color and fulfillment location. Product refinements may vary by batch; new features are not guaranteed.
Free contiguous U.S./Canada shipping30-day returns
Coverage period, exclusions, labor and shipping terms depend on your model. Review the full warranty terms before purchase.
View warranty terms (opens in a new tab)Specifications & support
Compare models
Choose your InstaShower
CURRENT MODEL
InstaShower 8 Plus
55K BTU · up to 2.9 GPM
Choose 8 Plus whenA mid-size trailer or Class C needs balanced everyday family shower flow.
InstaShower 7
48K BTU · up to 2.5 GPM
Choose 7 whenA compact RV and lighter one-fixture use make lower output the better fit.
InstaShower 9 Pro
66K BTU · up to 3.6 GPM
Choose 9 Pro whenA larger rig or heavier back-to-back demand benefits from mixing-tank stability.
What’s included
- ✓Water heaterFogatti tankless RV water heater
- ✓Access doorSelected color and door-size configuration
- ✓ControllerWired digital controller
- ✓Safety hardwarePressure-relief and connection components
- ✓DocumentationInstallation hardware and user manual
Package contents follow the selected configuration and variant.
Specifications
- Heat input
- 55,000 BTU
- Maximum flow
- Up to 2.9 GPM
- Temperature range
- 95–123°F
- Fuel
- LP propane
- Electrical supply
- 12V DC
- Minimum opening
- 13 × 13 in
- Maximum altitude
- 9,800 ft
Quick answers
When should I move up to 9 Pro?
Choose 9 Pro for a larger RV, heavier back-to-back use or when the mixing tank and 3.6 GPM platform better
match the household.
Which door size should I choose?
Use the existing cutout and trim dimensions, not the old tank capacity alone.
Can it provide continuous showers?
Yes, provided propane, water pressure and flow remain within the product requirements.
Complete your RV setup
Complete the RV comfort system
Add rooftop cooling or ducted heat selected for the RV roof, cabinet and utilities.
Add 15K rooftop cooling with a matching roof opening, ceiling layout and 115V circuit.
View rooftop fit
InstaShower 8 Plus
Checkout code
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$519.99
$529.99
Save (%)
THE BALANCED TANKLESS UPGRADE
Balanced hot water for everyday RV travel
InstaShower 8 Plus delivers 55,000 BTU and up to 2.9 GPM for mid-size travel trailers, Class C motorhomes and households that use hot water regularly but do not need the 9 Pro mixing tank.
55,000 BTUBalanced propane output
Up to 2.9 GPMRegular family shower use
84%Rated efficiency
Up to 9,800 ftHigh-altitude operation
More shower margin than the entry model
8 Plus focuses on continuous showers, common replacement openings and enough output for everyday family use.
CONTINUOUS SHOWERS
Replace tank recovery waits with continuous hot water
As long as propane, pressure and flow remain within the product requirements, the shower is not limited to six or ten stored gallons.
2.9 GPM FLOW
Use 2.9 GPM for regular family showers
It is aimed at regular shower use in travel trailers and Class C RVs without paying for the 9 Pro mixing tank.
STAGED COMBUSTION
Adjust burner output as water conditions change
Segmented combustion helps control heat output instead of forcing one fixed flame level across summer and colder travel.
COMMON RETROFIT SIZES
Choose the door that covers the old opening
Choose 15 × 15, 15 × 18 or 18 × 18 based on the actual exterior coverage required.
WHO SHOULD CHOOSE 8 PLUS?
The balanced choice for mid-size RVs
Its 2.9 GPM platform adds flow margin for regular family showers in mid-size rigs.
Travel trailers and Class C RVs
The output aligns well with common mid-size interiors and everyday shower demand.
Couples or small families
It provides more flow margin for repeated showers and routine sink use.
Owners replacing a 6- or 10-gallon tank
Multiple door sizes support a cleaner tank-to-tankless retrofit.
Door options for common RV water-heater openings
Choose 15×15, 15×18 or 18×18 from the existing opening; the guide covers water, LP propane, 12V and venting.
FIT AT A GLANCE
Cutout, trim and utility requirements
The same heater can be ordered with several exterior door sizes for common replacement jobs.
- Minimum opening
- 13 × 13 in
- Door options
- 15×15 / 15×18 / 18×18 in
- Water pressure
- 14.5–116 PSI
- Utilities
- LP propane + 12V DC
- Product size
- 15 × 15.4 × 15 in
A 15 × 15-inch door commonly replaces a 4/6-gallon tank opening; larger existing openings may require 15 × 18 or 18 × 18 coverage.
Compatible Accessories
Compatible RV Models
Coachmen
Apex Ultra-Lite
243FKS
245BHS
265RBSS
Freedom Express
226RBS
238BHS
257BHS
Forest River
Flagstaff Micro Lite
21FBRS
22FBS
25BRDS
Rockwood Mini Lite
2109S
2205S
2509S
2511S
Salem Cruise Lite
24VIEW
263BHXL
273QBXL
Surveyor Legend
240BHLE
252RBLE
260BHLE
Grand Design
Imagine XLS
22MLE
23LDE
24BSE
Imagine
2500RL
2670MK
2800BH
Transcend Xplor
200MK
221RB
247BH
Jayco
Jay Feather
21MML
24BH
25RB
Jay Flight
224BH
225MLS
235MBH
Keystone
Bullet
250BHS
2530RD
260RBS
Cougar Half-Ton
22MLS
25RDS
Passport SL
229RK
240BH
252RD
KZ
Connect
221RBSE
241BHK
261RB
Sportsmen
231RK
260BH
Winnebago
Minnie
2326BH
2529RG
2801BHS
Compatibility with the aforementioned RV models has been fully verified; other similar models are also compatible.
In the Box
| Item | With Door | Without Door |
|---|---|---|
| Gas Water Heater × 1 | ✓ | ✓ |
| Installation and Operation Manual × 1 | ✓ | ✓ |
| Controller × 1 | ✓ | ✓ |
| Screw (ST5 × 25) × 12 | ✓ | ✓ |
| Screw (ST4 × 16) × 2 | ✓ | ✓ |
| Screw (M4 × 8) × 10 | — | ✓ |
| Screw (M4 × 6) × 4 | — | ✓ |
| Insulation Strip × 1 | ✓ | ✓ |
| Waterproof Sealing Strip (EPDM) × 1 | ✓ | ✓ |
Compare models for your hot-water needs
8 Plus is the balanced middle. 7 suits lighter use, while 9 Pro adds the mixing tank and more flow for larger rigs.
InstaShower 8 Plus
For regular family shower use in travel trailers and Class C RVs.
- Heat input
- 55K BTU
- Flow
- Up to 2.9 GPM
- Best for
- Travel trailers / Class C
InstaShower 7
For compact rigs, warm climates and lighter hot-water demand.
- Heat input
- 48K BTU
- Flow
- Up to 2.5 GPM
- Best for
- Compact RVs / lighter use
InstaShower 9 Pro
For larger RVs, full-time use and heavier demand with a mixing tank.
- Heat input
- 66K BTU
- Flow
- Up to 3.6 GPM
- Best for
- Larger rigs / heavier use
See InstaShower 8 Plus in real RV use
Product overview, full retrofit and official installation guidance in three practical videos.
▶
PRODUCT REVIEW
See the 8 Plus features and replacement fit
A close look at output, door options and where this model sits in the range.
▶
TRAILER INSTALL
Watch an 8 Plus installed in a travel trailer
See the removal, connections, mounting, door and startup process in a real RV.
▶
OFFICIAL GUIDE
Follow Fogatti’s step-by-step installation
Pre-assembly, utility connections, sealing and initial ignition checks.
What owners say
Overall rating: 4.867052 / 5 from 173 reviews.
AI Generated Review Summary
The Fogatti InstaShower 8 Plus RV Tankless Water Heater offers unmatched performance with a 55,000 BTU output, ensuring continuous hot water supply and eliminating waiting times. Customers praise its easy installation, seamless fit, and reliable performance, especially at high altitudes. The product's CSA certification and built-in safety features add to its appeal, making it a top choice for RV campers.
Summary topics
- Shower Experience (11%): It was highlighted by customers that this shower is a game changer and provides long hot showers.
- Installation Ease (20%): A significant number of customers pointed out that the installation process was very easy and the unit works great.
- Hot Water Supply (50%): A substantial number of customers remarked that the tankless hot water heater provides instant and endless hot water.
- Product Line (6%): Customers keep praising the Fogatti line for being very easy to install and use for a custom build.
- Unit Performance (14%): Customers expressed appreciation for the unit, stating that it works amazing and is a great purchase.
Review topics: [].
Review highlights
- "Really great tankless hot water heater, gives instant hot water" —
- "If the unit is a direct fit for your application I would highly recommend this." —
- "I had my local dealer install which was a little pricy but was very impressed with the unit and end results" —
Reviews
"Absolutely love this showers are fantastic when we are camping and no worrying when the water will go cold!!!!"
Installed this to replace
"Installed this to replace a very loud three year old tankless. Install was pretty simple minus the wiring for the panel but that the manufacturer s fault. It is so quiet and heats up the water very fast. I would highly recommend this product!"
Well made. It was
"Well made. It was about 3/16" too wide. My RV guy had to take a saw to my RV sidewall to get it to fit. Installation went well other than that. The user manual does not explain well how this type of water heater works and how to manage with the controller. I took to YouTube videos and received good explanations. I do like that you can set one temperature for the hot water and it will always be exactly that temperature. BUT! I want to wash dishes in hotter water than I shower with. So I will have to change the temperature back and forth. One thing that is worth mentioning is the location of the control panel. My repair guy and I did not have any idea where it should go. He put it on the side of my bedroom cabinet, very near the location of the water heater. Turns out it should be in the bathroom! I had to set a temp, then leave the bedroom, go into the bathroom, run the water and decide if that was a temp I wanted. There was a LOT of back and forth from bedroom to bathroom. I will have someone move it to the bathroom as soon as I can. Even with those factors, it's a good product and I love not having to take military style showers now!"
Love the unit works
"Love the unit works great easy install little short in the wire for controller but other than that very pleased with the quality of the unite"
Works as advertised. . my
"Works as advertised. . my only complaint is I wish the controller had a longer wire . . it would make it mounting inside the Rv a lot better"
Best ever heater fact!
"Best ever heater fact! Unlike the heater that we got with the rv in purchase, fogatti worked instantly! Dometic has been nothing but disappointing! It never worked properly, the propane igniter needed fuse to be replaced and still never worked well, delays, no turning on at all at times! Instantly worked and temp to the point without water running out. The craziest thing is the domestic costs the same! No bypass valve, just winterize and forget! So far no issues ."
Great product seems to
"Great product seems to work well easy to install and customer service was prompt in answering any questions I had. I can definitely see more Fagatti products in my future as needed"
Amazing water heater. We
"Amazing water heater. We have not had any issues with hot water since installing. Love the feature of being able to change the water temperature. We absolutely hated the limited hot water we had with the old water heater. The installation was very easy. The shower capacity, We have been able to take showers without having to turn the water on and off."
Easy to install. Fired
"Easy to install. Fired up immediately. It's pretty straightforward, just remember to order the door kit for your RV if needed. We were able to get it installed and use our old covering with some adjustments to make it work until the kit arrives. Overall I'm impressed with it so far."
Second review and honestly
"Second review and honestly it s perfect! Instal was 20 minutes pop out and pop in! Removed the bypass valve as well! Just great!!!!"
Q&A
FAQs
InstaShower 8 Plus FAQs
These answers cover flow, door selection, high-altitude use and when to step up to 9 Pro.
Ready for balanced on-demand hot water?
Choose the matching color and door size above. Review the installation guide before ordering.