Recommended Replacement For An Atwood GC6AA-10E Water Heater

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Question:

Looking for a GC6AA-10E hot water heater. Cannot find one anywhere. Please help

asked by: Denise A

0

Expert Reply:

The Dometic RV Water Heater - Gas - Automatic Pilot - 12 Volt - 8,800 Btu - 6 Gal Tank Item AT96121 is the direct replacement for the GC6AA-10E. Unfortunately it is out of stock with no expected restock date.

Instead I recommend the Furrion RV Tankless Water Heater - Gas - Automatic Pilot - 60,000 BTU - 16" x 16" Door Item # FR98SR. Its dimensions are 19-3/16" deep x 12-5/8" tall x 12-13/16" wide. It provides 19+ gallons of hot water per hour and has a heating capacity of 13,000 to 60,000 BTU's for on demand hot water. The Vortex system mixes hot and cold water to eliminate fluctuations and reduce the risk of hot water scalding and the dual temperature sensors automatically shut power off if the water temperature exceeds a safe limit. You'll be much happier with the performance you receive from the tankless versus the tank water heaters and face less technical issues.

expert reply by: Kevin C

0

Patrick

2/24/2024

Thank you, Kevin. I have a 2023 GD Reflection 150 series with a Furrion tankless water heater. I boondock a lot. The water heater wastes about a quart or more water before getting hot. That is too much water loss. What about the Truma tankless water heater with the hot water reserve?

Kevin C.

3/5/2024

@Patrick The reason you're having to waste water waiting for it to heat up is because the pipes in the trailer are pressurized with water and aren't insulated to maintain the heat. The hot water has to work it's way through the pipes and push the cold water out before you'll start getting hot water. This would be an issue regardless of the water heater you have and could only be solved by insulating the pipes and moving the point of use close to the water heater, which typically isn't feasible.

James Y.

4/26/2024

I know for home tankless tanks, it requires a much higher amps to operate. How does that work in the RV scenario?

Kevin C.

4/29/2024

@JamesY The Furrion RV Tankless Water Heater # FR98SR really only uses electricity for it's computer functions and not for heating the water so it pulls less than 3 amps when in use. Other systems could differ but for the most part in the RV industry the power is really coming from burning propane.

James Y.

4/30/2024

@KevinC Got it! I couldnt find a way to submit my own question, but I'm still interested in having a water heater that is both electric/gas like our old Atwood GC6AA-10E. Does anyone make an electric/gas combo that will fit in the old atwood spot?

Kevin C.

4/30/2024

@JamesY If you're saying you want an electric heating option then Dometic does still offer some models with an electric heating element that also use propane. You'll just want to reach out to them directly since we don't currently offer these models.

Scott

6/17/2024

The rough opening for my existing gc6aa-10e 6gal seems much larger than the cut out recommended for the furrion. will it still work?

Kevin C.

6/18/2024

@Scott Yes, as technology has advanced manufacturers have shrunk the size of their water heaters down. You'll just need to frame in the opening a bit to give the new unit something to screw into. You'll just want to pick a unit with a large enough access door to cover the opening. We offer the following door sizes: 16" x 16" Door # FR98SR 16" x 18" Door # FR48SR 18" x 18" Door # FR68SR You'll want to use some butyl tape # AL28FJ on the mounting flanges of both the unit and access door as well as some sealant # 344270341437-1 around the outer edge of the access door to prevent any water from leaking in.

Helpful Links

tv-install-furrion-tankless-water-heater-2019-grand-design-momentum-toy-hauler-fr93fr.aspx

Erick

2/28/2025

How much is the tank less? And where can i get it?

Dd

3/17/2025

Hi Kevin thank you so much. Is there a less expensive tankless water heater for this Atwood model?

Jesse M.

3/17/2025

@Dd Yes the Fogatti brand tankless heaters generally do cost a bit less than the Furrion ones. Take a look at the following link:

Helpful Links

dept-pg-rv_water_heater-sf-tankless_water_heater-pm-fogatti.aspx

Dd

3/17/2025

@JesseM thank you for the quick response. I just glanced at those but the dimensions weren't the same as the one recommended above for my exact Atwood model. Can you help me find one?

Jesse M.

3/17/2025

@Dd The Furrion # FR98SR mentioned above is not a direct replacement for the Atwood unit. The tankless water heaters are generally smaller than the older tanked units. In most cases the space will need to be modified to accommodate a tankless heater. Most people will build out the inside of the cutout to properly house the unit.

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Answer 1

The best replacement water heater for your Atwood GC6AA-10E is the Dometic RV Water Heater #DMC74FR which needs a cutout of 12-3/4" tall x 12-3/4" wide x 19-7/8" deep to fit. Then you just need a door like the 12-3/4" #DMC58FR to…

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Answer 2

You’ve got a serious setup there, and I’m really glad you’re double checking because you’re right up near the limits where the details matter. The good news is this coupler part #CAB97FR will work with your setup from both a fit and rating…

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Answer 3

A good water heater to replace your Atwood GC6AA/10E 6-gallon heater is the Dometic RV Water Heater - Gas and Electric - Automatic Pilot #DMC74FR. Like your Atwood, this is a 6-gallon heater and requires a 12-3/4" tall x 12-3/4" wide x…

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Answer 4

Hello Joe. We do not have anything that would be a direct replacement with Atwood being out of business. I do have 2 different water heaters that I recommend. First would be the Dometic RV Water Heater - Gas/Electric - Automatic Pilot - 120V -…

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Answer 5

Dometic purchased Atwood a number of years ago and has been slowly phasing out their line of water heaters so there is no longer any GC6AA-10E water heaters available. That being said the Dometic RV Water Heater #DMC74FR is basically the same thing,…

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Answer 6

What you are looking to do is very possible. The first thing you need is a Tee like the part #CAM59103 which you'd run between the tank and the regulator like the part #108220 through a pigtail like #100473-12. The line that would go to the…

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Answer 7

From what you described it sounds like you're needing the T-Fitting #103602-MBS along with the Fill Hose #100019-144 (for your small tank), the Tank Connector #204037-MBS, and the 2-Stage Propane Regulator #108221. Attached is a photo of what…

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Answer 8

The kit we offer that is designed for connecting an RV propane tank with an auxiliary tank is the MB Sturgis Quick Disconnect Deluxe Sturgi-Stay Propane Adapter Kit #103539-MBS which is designed for exactly what you are describing.

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Answer 9

To add a 100 lb tank to your two 30 lb tanks, I recommend the MB Sturgis Sturgi-Stay T-Fitting w Hose - Type 1 Valve - Quick Disconnect, Disposable Cylinder Ports #103615. This will allow you to connect the red fitting to one of your tanks and the…

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Answer 10

There isn't a gauge requirement for the thermostat wiring of the Furrion Chill RV AC units like the part #FR92PR but it's not a circuit that carries a lot of amperage so a 14-gauge wire would work well.

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Answer 11

The Furrion RV Tankless Water Heater #FR48SR has four wires coming out of the back of it; one white wire for your ground, one black wire for your 12v power, and two blue wires that will communicate with your thermostat. You can test your old wiring…

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Answer 12

I spoke with Furrion about your #FR93FR water heater, and they have told me that the reason this would occur is because either you hooked up the unit to the incorrect power source, or you have reverse polarity. This would cause the control board to…

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