INSTASHOWER 7
48K BTU RV Tankless Water Heater
$429.99
$559.99
Save $130.00
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Endless hot water in a lower-output replacement.
InstaShower 7 delivers 48,000 BTU output and up to 2.5 GPM for RV owners with lighter hot-water demand. Multiple door sizes, 12V controls and LP propane heating make it a practical step up from a limited tank heater.
View all features ↓Best for compact RVs, couples and lighter one-fixture hot-water use where right-sized output helps avoid overbuying.
48,000 BTUEfficient propane heating
Up to 2.5 GPMOn-demand hot-water flow
95–123°FSelectable temperature range
13 × 13 inMinimum clear opening
Secure checkout
More options available at checkout
30-day returns
Free contiguous U.S. shipping
2-year warranty
Choose your InstaShower
CURRENT MODEL
InstaShower 7
48K BTU · up to 2.5 GPM
Choose 7 whenA compact RV and lighter one-fixture use call for right-sized hot-water output.
InstaShower 8 Plus
55K BTU · up to 2.9 GPM
Choose 8 Plus whenRegular family showers in a mid-size trailer or Class C need more flow.
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.
Fit and installation
- Minimum clear opening
- 13 × 13 in
- Door options
- 15×15 / 15×18 / 18×18 in
- Fuel
- LP propane
- Electrical supply
- 12V DC
- Water connections
- 1/2 in inlet and outlet
- Water pressure
- 14.5–116 PSI
- Size
- 15 × 15.4 × 15 in
- Weight
- 27.3 lbs / 12.4 kg
Choose the door from the opening and exterior trim; the guide covers water, LP propane, 12V and venting.
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
- 48,000 BTU
- Maximum flow
- Up to 2.5 GPM
- Temperature range
- 95–123°F
- Fuel
- LP propane
- Electrical supply
- 12V DC
- Water pressure
- 14.5–116 PSI
- Minimum opening
- 13 × 13 in
Quick answers
Is 2.5 GPM enough for my RV?
It suits lighter hot-water demand; incoming water temperature and shower flow affect the result.
Can it replace a 10- or 12-gallon tank heater?
The 18 × 18-inch door option supports many larger former tank openings; match it to the actual cutout and
trim coverage.
Does it include freeze protection?
Yes, but the RV plumbing still needs proper winterization when temperatures fall below freezing.
Recommended for compact RVs
For compact trailers and smaller Class B/C layouts, start with right-sized 13.5K cooling and 25K ducted heat.
13.5K rooftop cooling is the right-sized companion for smaller RV interiors. Confirm the roof opening and select the matching ducted or non-ducted ADB.
Choose AC configuration
25K output and 220 CFM airflow suit smaller furnace replacements. Confirm cabinet orientation, ducts, exhaust, propane and 12V power.
View furnace fit
InstaShower 7
Checkout code
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$429.99
$559.99
Save $130.00
RIGHT-SIZED TANKLESS HOT WATER
Right-sized hot water for compact RVs
InstaShower 7 delivers 48,000 BTU and up to 2.5 GPM. It is designed for compact travel trailers, smaller Class B/C layouts, couples and warm-weather users who normally run one hot-water fixture at a time.
48,000 BTUEfficient propane output
Up to 2.5 GPMOne-shower demand
84%Rated efficiency
Up to 9,800 ftHigh-altitude operation
End tank recovery waits without oversizing
For a smaller RV and lighter household, the entry model can replace a limited tank without oversizing the hot-water system.
NO TANK RECOVERY WAIT
Keep showering while utilities remain available
The shower is no longer limited to a stored six-gallon volume or a 20–30 minute tank recovery cycle.
RIGHT-SIZED OUTPUT
Match 48K output to lighter demand
The 2.5 GPM platform is right-sized for couples, compact trailers and one primary hot-water fixture at a time.
COMMON DOOR OPTIONS
Cover the old exterior opening cleanly
15 × 15, 15 × 18 and 18 × 18 options support many Suburban, Atwood, Dometic, Girard and Furrion replacement layouts.
TRAVEL-READY BASICS
Retain core travel and safety features
The heater keeps the system simple while retaining the safety and control features expected for travel.
MATCH THE HOUSEHOLD
Right-sized continuous hot water for compact RV travel
Its 2.5 GPM platform suits couples, compact rigs and one primary fixture at a time.
Compact trailers and smaller Class B/C RVs
The lower-flow platform aligns with smaller interiors and one-fixture use.
Couples and solo travelers
It replaces tank recovery limits with an efficient flow platform for lighter daily demand.
Mostly warm-weather camping
Warmer incoming water reduces the temperature rise the burner must deliver.
Match the door to the old opening
The 13 × 13-inch minimum opening pairs with 15×15, 15×18 or 18×18 exterior-door coverage.
FIT AT A GLANCE
Opening and exterior-door coverage
Choose 15×15, 15×18 or 18×18 from the existing wall opening and trim coverage.
- 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 × 14.3 × 15 in
The 15 × 15-inch option is commonly used for a 4/6-gallon replacement; larger tank openings may require the larger door variants.
Compatible Accessories
Compatible RV Models
Airstream
Bambi
16RB
19CB
20FB
Coachmen
Apex Nano
185BH
186BH
187RB
Clipper
14CR
15CBH
17CBH
Viking
17SBH
Forest River
Flagstaff E-Pro
E15TB
E16BH
E19BH
E19FBS
No Boundaries
16 Series
19 Series
R-Pod
171
180
190
192
193
RP-153
Rockwood Geo Pro
G15TB
G16BH
G19BH
G19FBS
Gulf Stream
Ameri-Lite Super Lite
16BHC
16RE
19BH
Jayco
Jay Feather Micro
166FBS
171BH
173MRB
199MBS
Jay Flight SLX
154BH
174BH
175BH
Keystone
Springdale Mini
1750RD
1760BH
1800BH
KZ
Sportsmen Classic
130RB
160QB
170MB
181BH
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 | ✓ | ✓ |
Choose output from actual demand
7 covers lighter one-fixture use. 8 Plus adds flow for regular families, while 9 Pro adds the mixing tank and highest output for larger rigs.
InstaShower 7
For compact RVs, couples and lighter one-fixture use.
- Heat input
- 48K BTU
- Flow
- Up to 2.5 GPM
- Best for
- Compact RVs / lighter use
InstaShower 8 Plus
For travel trailers and Class C RVs with regular family showers.
- Heat input
- 55K BTU
- Flow
- Up to 2.9 GPM
- Best for
- Travel trailers / Class C
InstaShower 9 Pro
For larger rigs, 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 7 in real RV use
Product overview, retrofit installation and winterization in three practical videos.
▶
PRODUCT REVIEW
See where InstaShower 7 fits in the range
A practical explanation of its 48K output, 2.5 GPM flow and lighter-use positioning.
▶
INSTALLATION
Watch a tank-to-tankless replacement
Removal, utility connections, sealing, controller wiring and startup testing.
▶
WINTERIZATION
Drain the water heater before freezing weather
See the maintenance step that protects the heat exchanger and plumbing.
Why InstaShower 7 fits compact RV demand
These answers cover household size, cold incoming water, door fit and when to choose 8 Plus instead.
Is 2.5 GPM enough for an RV shower?
Up to 2.5 GPM aligns with many RV showers; delivered flow varies with inlet temperature, pressure and showerhead flow.
Can I use the shower and sink at the same time?
Its up-to-2.5 GPM output is designed for one primary fixture at a time; choose 8 Plus for regular simultaneous demand.
Can it replace a 6- or 10-gallon tank heater?
The heater uses a 13 × 13-inch minimum opening, with different door sizes available to cover common exterior openings.
Does it work in colder weather?
It supports cold-weather travel, while 8 Plus or 9 Pro adds recovery margin for colder incoming water.
Who should choose 8 Plus instead?
Choose 8 Plus for a mid-size RV, regular family showers and added flow margin from its 2.9 GPM platform.
Ready for right-sized on-demand hot water?
Choose the matching door above. The installation guide is available for final fit planning.
This product is rated 5.0 of 5.0 stars.
It has received 52 reviews.
Overall rating: 4.9615383 / 5 from 52 reviews.
AI Generated Review Summary
The Fogatti RV Tankless Water Heater InstaShower 7 offers a continuous hot water supply with 48,000 BTU heating, ideal for replacing traditional tank water heaters. It features high-altitude suitability, staged combustion technology, and multiple safety protections. Easy installation and cost-saving benefits make it a reliable choice for RVers.
Summary topics
- Hot Water Supply (35%): A substantial number of customers raved about the superior tankless hot water heater in RVs.
- Installation Ease (22%): Many customers loved the easy and straightforward installation process of the product, with some mentioning it as simple and straightforward.
Review topics: [].
Review highlights
- "Easy install, hot water on demand." —
- "Excellent Very good machine and customer support is awsome" —
- "It s a pretty nice luxury to have in a camper to have unlimited hot water for showers and dishes." —
Reviews
Unit is great. We
"Unit is great. We blew a fuse in the unit. Having a very hard time finding the correct replacement fuse. Apparently Fogatti does not sell the replacement fuses. Did find some online and I hope they are the correct ones as I paid 4 times more for the tariff tax and shipping than what the actual item cost me."
I am so happy
"I am so happy I purchased this for my RV. I love it"
After a few bumps
"After a few bumps in the road we finally got one installed! Now we wonder why we didn t go tankless sooner!!!!! FOGATTI customer service was fantastic through out the installation!! Couldn t have done it without them!! Thanks FOGATTI!! Can t go wrong with this tank folks!!!"
The part was at
"The part was at the door when I got home open package no dents or dings pack very well looks like what is needed for a change from a surburban heater to a tankless heater"
Easy install. Works great.
"Easy install. Works great."
Amazing product and super
"Amazing product and super easy to install! You wi;; love the efficiency and endless supply of hot water."
I have had this
"I have had this unit for two years now it is brilliant, love the hot water showers have had no issues with it, best thing I could have done!!"
System is easy to
"System is easy to install and works very well. Had some issues at high altitude and had to contact customer service and they responded right away to have me adjust the paramotors in the program. I wished they had put that information in the manual to save a problem in resolving the problem. But overall very satisfied."
This was a perfect
"This was a perfect replacement for my 6 gallon Atwood on my 2012 Jayco Jayflight. Under 4 hrs install. Consider though; I can plumb; wire; pipe fit; etc. such a nice unit. Fit the 15x18 cutout perfectly; didn t even need the additional trim piece."
Fast heating, nice product!
"Fast heating, nice product! Recommend it!"