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Availability of 18 by 18 inch Water Heater Door  

Updated 10/27/2025 | Published 03/02/2025

Question:

I am looking to buy a suburban st-60 tankless water heater but the fort is too small to cover my existing opening. I have a 12 gal long tanked water heater and the outside of the door measures 18x18. Is there any option to getting a larger door or something what will be able to cover the hole.

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Expert Reply:

Hey Hayden, we do have an 18 inch by 18 inch water heater access door from Furrion with the part # FR73FR. It was designed to work with Furrion water heaters but I don't see why it couldn't be made to work with what you have if you're willing to make some modifications.

expert reply by:
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Jameson C
Jameson C. profile picture

Jameson C.

10/27/2025

Hey Hayden, how did the 18x18 Furrion access door work out with your water heater setup? Your update could make it easier for others trying to cover a larger opening.

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