Will The Fogatti InstaShower 8 Pro Work As A Replacement For An Atwood OD-5001?
Updated 02/03/2026 | Published 07/12/2024
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Question:
I am needing a replacement water heater for my Atwood OD-5001, but I am seeing that they are not around anymore. Will the Fogatti InstaShower 8 Pro RV Tankless Water Heaters FG47FR fit? I saw that it was gas only, which my Atwood was too, and wanted to stick to that. Tankless also sounds like the way to go nowadays. Will need a door for it as well.
asked by: Susan
Expert Reply:
I will start by saying tankless is definitely the way to go. They supply hot water significantly faster and more continuously than tanked models and tend to take up less room as well. Now down to the nitty-gritty.
The Fogatti InstaShower 8 Pro RV Tankless Water Heater With Mixing Tank # FG47FR should work as a replacement for your Atwood OD-5001. I say should as I could not find any measurements for that specific model, so you will need to measure a little bit. The Fogatti # FG47FR measures 13” wide x 13” tall x 15-13/16” deep so as long as you are close to that, it will fit. But, you may need to a few slight modifications.
The proper door will also need a few measurements to make sure it will be the right one. I have all the doors for this heater listed below as well as the kit (the door and the heater together for ease of ordering).
15” x 15” White Door # FG67FR (Kit part # FG98FR )
15” x 15” Black Door # FG77FR (Kit part # FG48FR )
15” x 18” White Door # FG87FR (Kit part # FG68FR )
15” x 18” Black Door # FG27FR (Kit part # FG78FR )
18” x 18” White Door # FG59FR (Kit part # FG88FR )
18” x 18” Black Door # FG39FR (Kit part # FG28FR )
Product Page this Question was Asked From
Replacement Fogatti InstaShower 8 Pro RV Tankless Water Heater w/Mixing Tank - 55K Btu
- RV Water Heater
- Tankless Water Heater
- Propane
- 40001 - 55000 Btu
- 12 Volts
- 13L x 13W x 17-3/4D Inch Cutout
- 13L x 13W x 15-13/16D Inch
- Doorless
- Fogatti
more information >
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Lazer S.
2/3/2026
Hey, how did your measurements turn out for replacing the Atwood water heater with the Fogatti InstaShower 8 Pro? Were you able to find a door size that matched your opening? Your update could make it easier for others working on the same swap.