Can The Fogatti InstaShower 7 Tankless Water Heater FG37FR Replace A 6 Gallon Suburban Tanked Heater
Updated 02/03/2026 | Published 07/12/2024
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Question:
I am looking to replace the 6 gallon Suburban water heater in my camper as I am pretty unhappy with it. I want to go with a tankless one and stumbled onto this Fogatti InstaShower 7 Tankless Water Heater - 48,000 Btu Part Number: FG37FR Will it work as a suitable replacement? Its just me using the camper so I figured I would save a little money and go with a lower Btu option. It doesnt look like a door is included though. Is this accurate?
asked by: Toney
Expert Reply:
We don't carry the Suburban line of water heaters so you will need to check a few measurements to make sure it will fit, but you may need to do a few modifications to make it fit properly.
With that said, here are a few specs for you. The Fogatti InstaShower 7 Tankless Water Heater - 48,000 Btu # FG37FR measures 13” wide, 13” tall, and 13-13/16 deep. The operating water flow is 2.5 gallons of hot water per minute (or 150 gallons per hour), which will be more than adequate for a singular person, and will use LP gas for operation (there is not an electric option in the Fogatti line). If that all aligns to your needs, then it will be a good option.
Lastly, you are correct in that this does not include the door. We have a few options for said door (you will need to measure again) and I have them listed out below. I also included the “kit” part number as that will be the heater unit and the door together, which will ease the ordering process.
15” x 15” White Door # FG67FR (Kit part # FG89FR )
15” x 15” Black Door # FG77FR (Kit part # FG29FR )
15” x 18” White Door # FG87FR (Kit part # FG56FR )
15” x 18” Black Door # FG27FR (Kit part # FG36FR )
18” x 18” White Door # FG59FR (Kit part # FG96FR )
18” x 18” Black Door # FG39FR (Kit part # FG46FR )
Product Page this Question was Asked From
Replacement Fogatti InstaShower 7 Tankless Water Heater - 48,000 Btu
- RV Water Heater
- Tankless Water Heater
- Gas
- 40001 - 55000 Btu
- 12 Volts
- 13L x 13W x 13-13/16D Inch Cutout
- 13L x 13W x 13-13/16D Inch
- Doorless
- Fogatti
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Lazer S.
2/3/2026
Hey, how did the fit go with the Fogatti InstaShower 7 in place of your old Suburban water heater? Once you checked those measurements and picked a door size, did it line up well in your camper? Your update could make it easier for the next person planning a similar swap.