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FOGATTI InstaShower 8 Plus RV Tankless Water Heater, 3 Door Size Options (15"x15"/15"x18"/18"x18") for Easy Retrofit, 12V DC, Remote Controller, Propane, Ideal for RV Families & Campers, Gen 3

  • Based on 979 reviews
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Availability: In Stock.
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Arrives Thursday, Aug 13
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Color: IS 8 Plus, Black


Features

  • High-Altitude Ready: Flawless RV Hot Water Heater to 9,800 Ft! The high altitude suitability mode allows the machine to run smoothly even when driving the caravan to the high Denver plateau at 9,800 feet. Staged combustion technology, which controls the amount of flame in summer, prevents the water from getting too hot and saves the limited propane gas available for caravan travel
  • All RV water heaters can be replaced: The Fogatti RV water heater have a wide range of applications. The opening is 13 x 13 inches and the door is 15 x 15 inches. It can replace Suburban and Atwood's 6 gallons tank water heaters, as well as Girard and Furrion's tankless water heaters. If you previously used a 10 gallons tank water heater, it would need to be retrofitted with an 18 x 18 inches door
  • Never Run Out: Our RV Tankless Water Heater Lasts 40+ Min (vs. 8 Min Tanks). With 55,000 BTU of power, it can produce a maximum of 2.9 GPM of hot water. Some tank heaters can only store up to 6-10 gallons of hot water and run out of hot water in 5-8 minutes, whereas our hot water supply lasts over 40 minutes
  • Shower Bliss for RVs: Tankless, Propane, No Cold Surprises. RV tankless water heaters are taking off. Tankless water heaters are better than tanked water heaters for continuous showering of multiple people. There is no need to waste 20-30 minutes waiting for hot water in the middle of the shower, so you can enjoy hot water at all times. It uses propane for heating, so there is no need to worry about running out of power in your caravan
  • All-Inclusive RV Water Heater: Built-in Valve + 15" Door + 2m Remote! Fogatti has always thought of you, with a pressure relief valve built into the product, so you don't have to buy and install it separately. And it also comes with a 15 x 15 inches door and an intelligent remote controller up to 2 meters long
  • Safety and reliability; The product is CSA certified and has multiple protection features such as a built-in forced exhaust fan on top, stable combustion, automatic gas shut-off for accidental flame failure and anti-freeze

Description

InstaShower 8Plus InstaShower 9Pro Bundle 1 Bundle 2 Bundle 3 Bundle 4 Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Brand: FOGATTI


Capacity: 6 gallons


Power Source: Liquid Propane


Product Dimensions: 15"W x 15"H


Special Feature: Anti-Freezing Protection, Dry Combustion Protection, Low Water Pressure Start Up, Overheat Protection, Water Overpressure Protection See more


Power Source: Liquid Propane


Special Features: Anti-Freezing Protection, Dry Combustion Protection, Low Water Pressure Start Up, Overheat Protection, Water Overpressure Protection


Wattage: 46 watts


Voltage: 12 Volts (DC)


Flow Rate: 2.9 Gallons Per Minute


Maximum Temperature: 123 Degrees Fahrenheit


Heat Output: 55000 British Thermal Units


Efficiency: 84%


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Built-in


Is Electric: No


Capacity: 6 gallons


Item Dimensions W x H: 15"W x 15"H


Item Depth: 15.4 inches


Brand Name: FOGATTI


Model Number: FS08B1SBD


Manufacturer: FOGATTI


UPC: 742556586774


Manufacturer Part Number: FS08B1SBD


Included Components: RV Tankless Water Heater, Wired Controller


Unit Count: 1.0 Count


Item Type Name: RV Water Heater


Color: IS 8 Plus, Black


Style Name: InstaShower 8 Plus


Material Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • The best on-demand water heater for the money!
Color: IS 8 Plus, White
I purchased and I nstalled the Shower 8 Plus 55,000 BTU and it fired right up immediately and I had hot water within seconds. It’s a self contained unit that includes the high pressure relief valve. The only external part’s considerations you will need to make are the 1/2”” water inlet and outlets and the 5/8” male gas fitting that is on the back of the unit. My advice is to buy two flexible 1/2” faucet lines that include the 1/4 turn shut off valves on one end and 1/2” shark bite connection on the other end. Simply cut your existing 1/2” PEX lines in the appropriate locations and slip the two new flexible lines on and tight by hand the other end onto the inlet and outlet of the water heater. The shutoff valves will allow you to be able to shut off both water lines in case you need to service and flush the unit without having to shut off water to your entire RV. The electrical is self explanatory and uses a 12V positive and a negative/ground. The included digital controller uses two small wires that connect to the two blue wires on the back of the unit and it doesn’t matter which way you terminate the blue wires to the controller. Make sure you clean the outside mating surfaces before attaching the twelve screws on the outside of your RV and use new butyl tape and/or a good marine sealant to prevent leaks. Inside where your water heater sits screw down a couple pieces of wood snug on each side of the unit to help keep it stable so it won’t tend to shift when your RV is going down the road. That will prevent stress on the outside mating surface during transports. Overall I’m super satisfied with this water heater. I run the temp at 109 degrees and it’s perfect. It runs very quiet. You will have hot water when the electricity is out or if boondocking. Propane is cheaper than electricity and this unit is more efficient than older units and tank water heaters. It’s definitely worth the investment if you are on the fence just know that it’s a high quality product that is well put together with quality parts and materials. Fogatti customer service is better than other companies so that’s another reason to buy from this company. I threw my 100% working Suburban tank water heater straight in the trash bin and didn’t look back. I didn’t shed one tear and I threw it like an angry gorilla! I can now have continuous hot water! ... show more
Reviewed in the United States on December 6, 2023 by Dean S.

  • 1 year later
Color: IS 8 Plus, Black
Full time RVers here. Have had installed for a year now. Easy installation, absolutely no issues!!
Reviewed in the United States on July 3, 2026 by Scott Farrell

  • Off-grid hot water solution
Color: IS 8 Plus, White
Using for an off-grid cabin. Follow other reviews' instructions on installing pressure relief valve. Took me a while to figure out all the parts I needed to make it work for a cabin rather than an RV. Lots of trips back and forth from the hardware store, but alas, it works and water is HOT!!! Wife and I use it for showers and washing dishes. Hooks up to a standard grill tank. NOTE: Use a 100 psi pressure relief valve. NOT the standard 150 PSI valve you commonly find at Lowes or Home Depot. Fogatti sells the right one on Amazon. 12/2022 UPDATE: So, most of the US just went through the deep freeze. During this time, water inside the heater froze causing a part to rupture and water was spraying like crazy inside the unit. I called Fogatti and spoke to an actual person on US soil without a foreign accent. I'd add an extra star for this if i could. I explained the issue and texted them an image of the part that broke and they immediately shipped me out a replacement part! If I were to knock off a start for the part breaking, I'd have to add ot back just because of the customer service. So I still remain at 5 stars for this product. It's actually 6 stars because I spoke to an actual American. 1/2023 UPDATE: Shipping was slow. Very slow. But the part was very easy to replace. While i was waiting for the part to come in, it still made hot water even though it was leaking. Do I still give it a 5 star? Almost. I'd say a 4.9 star. 4/2023 Update: Not sure if I can recommend this anymore. A few days ago the water heater stopped turning on. I connected a multimeter to the 12V batter and am ready 12V. Tested the wires that go from the battery to the unit' still getting 12V. Tested the wires coming from the unit, going into the remote - 0V. Spoke with customer service and they were very pleasant to work with. Again, it was personnright here in the US and not some foreign call center that you can't understand. So anyways, I spoke with the support tech and he asked me to check a few more things and he determined it may be the board that has gone bad. They're shipping me a new one, and while I do appreciate the good customer service, this thing isn't even a year old and it already needs new parts. I do have a 5 year warranty, so I'll he able to get parts for the next 5 years, but after that, if this thing still keeps breaking, I'm going to have to look for a different unit. If Fogatti's units were as superb as their customer service, this would be a 5/5 stars all day. Dropping to a 3 star. It would be a 1 star as far as reliability, but their customer service is so good it brings them up to a 3. If I get these new parts and I don't have any problems anymore, it'll go back to 5 stars if it stays problem free. 6/2023 Update: Git the parts, installed and it wasnt working still. Spoke with Fogatti again. We used the multimeter to see the voltage going into the unit: 11.67V. Apparently this was way to low and it won't turn on. My led lights turned on, but not my water heater. I rewired a few things and got it plugged into my solar power station, sure enough, it's turned on with hot water. It wasn't them after all. I need to calll the technician again so I can confirm he was right. 5 stars again. What a rollercoaster lol 2/2024 UPDATE Since I rewired the water heater to plug directly into the AC solar inverter, I have not had any issues with the unit turning on. Now, if you're using hot water, and suddenly it goes cold and the little black control box starts beeping, turn off the faucet/shower, wait a few seconds, and turn it back on. If it still keeps happening, turn off the faucet/shower, and turn the hot water 3/4 of the way, let it get hot, then turn on all the way. Not sure why I need to do that, but it seems to work. 11/2024 Update: Still no problems since the last update. Wiring this thing to be able to plug directly into a standard wall outlet was the ticket. Significantly less issues with water suddenly going cold. Still happens though, but the trick I used in my previous update still works. Heading into winter now so we'll see if the pipe freezes and explodes again. 3/2025 Update: Coming out of winter. Pipes did not freeze. FYI, this unit can supply 3 fixtures with a bit of decreased performance. Built an addition to our cabin, will need to upgrade to a larger unit or get a second unit. ... show more
Reviewed in the United States on September 13, 2022 by Shawn

  • Perfect for PARK camping
Color: IS 8 Plus, White
My wife and I replaced our atwood 6 gallon hot water heater on our winnebago RV. Being that it is a motorhome, there was an added coolant line intended to heat water while driving...that had to be bypassed prior to install (nothing on the manufacturer but keep in mind if you have a motorhome) Install was very simple and only required a couple of 1/2" PEX to 1/2" NPT female fittings, and moving the 3/8" propane line brackets slightly. Writing this after using for almost 3 months and it is a blessing! Hot showers as long as you want, great heat to flow ratio and it's hot almost as soon as the pipe water is circulated, plus about 10 seconds. As long as you're connected to city water, this is the ticket! We have also saved a LOT of propane not wasting it to keep a tank hot all day/night. Only using the propane on demand has made 40lbs of propane last what seems like a year, whereas before it lasted 45 days at most. The built on control panel allows you to change top end temp and auto shuts down if there is a pilot flame out, making it safer and more reliable. If you live on tanks often, you may be disappointed with how much water you'll waste to get hot water. It doesn't stay on well with the HW valve less than half flow, meaning you need higher flow just to keep it on. Turning off the valve or shower head to save water doesn't work well either because as soon as it senses less flow, it switches off and begins cool down. Not a water saver, but a propane saver for sure. ... show more
Reviewed in the United States on June 30, 2023 by cam

  • Great RV upgrade!
Color: IS 8 Plus, White
Wonderful replacement of a 6 gallon tanked heater. I purchased this water heater September of 2023. I live full time in my motorhome so the heater gets used daily and I like long hot showers. It has been a great upgrade. At the time, I didn’t have a clue about motorhome maintenance. But it turned out to be quite simple to install. Not necessarily easy, but simple. Both water lines were leaking so I replaced them. The propane line also had to be replaced because the old line was too long for the new heater. I purchased flexible lines, both water and propane lines, that were long enough to allow me to connect them before inserting the heater into the box. Wiring was simple. The color of the new heater wires matched the old wires. Following the instructions, I turned it on and it worked. The remote is simple. There is a power switch, a mode switch to change the display data from Fahrenheit to Celsius and two direction buttons to adjust the temperature minimum/maximum. There’s enough cord on the remote to allow you to mount it inside the RV but as I don’t have the need to make frequent adjustments and there’s a water heater power switch already available inside my RV, I left the remote in the basement. The only issue I’ve had is not directly related to the heater itself and I wouldn’t even mention it but I thought this information might be helpful to someone else. The issue was that Fleetwood didn’t put the heater inside the basement of my Bounder, they put it in an uninsulated box outside. So, in extremely cold weather the water lines can freeze. To rectify that situation I drilled a hole through the basement wall and into the heater box and ran a 2” vent from the furnace, which is right above the heater box. Now, Every time the furnace comes on it heats the box also. No more frozen lines. You can purchase 2” adapters a a flexible tube from Amazon. The only other thing I might recommend is to leave the backing paper on the putty tape. Apply the putty to the RV opening. The backing paper will prevent the putty from sticking to the mounting surface of the heater while still providing the weather seal required. That way if you ever need to remove the heater again you won’t have to pry the mounting flange away from the wall. I hope you enjoy having your new heater as much as I have. ... show more
Reviewed in the United States on January 21, 2026 by Kwaresr

  • Dead On Arrival
Color: IS 8 Plus, White
Dead on arrival. Hooked everything up, doesn’t work. Checked power, it’s there. Trouble shooting says check fuse, well the fuse holder is broken but the fuse is good and functioning. Checked controller voltage and power is present. Unit has left us searching for another unit ASAP now. Looks nice but doesn’t operate….. ... show more
Reviewed in the United States on May 25, 2026 by Antony Miller

  • Don't wait, Buy this! Don't wait, Buy this!
I've been debating this purchase. Researching which one would be best and could handle different water pressures (VERY IMPORTANT, most dont). This made the top of the list. As it met my checklist and the price was 100 to 200+ less then others. I found two people in the park with them and they couldn't recommend them enough. So far, it has been great! Con: (This will be a short list. And I'm reaching for these.) *About a 1/4 inch to tall for the old opening of the Dometic GC6AA-10E. Jig saw or saws all for my aluminum frame took care of that. (This was expected) *The fan inside of unit has a low vibration to it causing a low hum in the trailer. (Although this was the only unexpected thing, my unit at home does this and is normal.) To correct this I would put a rubber mat under it to reduce this. This is only slightly louder then the heating element of the old unit and is not a deal breaker. *Another 10 feet of wire to the remote would have been nice. *More propane use (But this is countered by less electricity. And expected) *May have to wait another 15 seconds for hot water to reach the faucet. (Even my inpatient wife does not mind this) Pros: *Looks great outside. Looks completely stock. *Endless hot water (with propane). You don't have to wait 25 mins for the tank to heat up again. You can do dishes and everyone can take a shower one after another without waiting. *Might have to wait an extra 15 seconds for hot water to hit the faucet but it is worth the wait. *Easy install! I made mine more complicated adding valves the had attachments for pressure relief and to attach hoses for vinegar flushes (1/2 threads on the back of unit would fit hoses of a flush kit, this was just my way). I also changed out existing plumbing. I used a 12v connection from a near by light. Some one could do this install within two or three hours. More or less pending connections, and your experience. It took me alot longer in my pursuit of being meticulously (OCD) and making things the way I wanted. Bottom line, get this. You won't be sorry. ... show more
Reviewed in the United States on August 23, 2024 Reviewed in the United States on August 23, 2024 by chas

  • Great Water heater.
Color: IS 8 Plus, White
I have bought two of these. Had one in my camper when I sold it. Bought the other for my new camper. I will never have another camper without this water heater. Take as long of a shower as you want and it never gets cold. Does not burn as much propane as I thought it would. Easy to install. The thermostat on the wall allows to set the temp and it reflects the actual temp of the water coming out. If you want hot water for more than just a few minutes get this. You will not be disappointed ... show more
Reviewed in the United States on February 19, 2026 by Steve and Marion

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