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Old 12-08-2022, 11:29 AM   #1
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upgrade water heater

Hi all -

I have a 2017 FR Wildcat 38MBX 5th Wheel with 6 gal water heater.

Like to see about upgrading the size to a 10 gal water heater.

Is that feasible?

I don't want a tankless water heater since we've add one on our 21 Winnebago TT installed from dealer and it was just ok - like meh - not worth it - had issues with having "unlimited" amount of hot water and such. Wont go that route again.

Now when I go on this site: https://www.rvusa.com/rv-guide/2017-...-38mbx-tr30687 it states the 5th wheel to have a 18 gal water heater - seems wrong and it is when compared to my 5th wheel being only a 6 gal tank. Also this site stated 18 gal too: https://www.forestriverrvsource.com/...-38mbx-tr30687

I do believe in my manuals, the water heater one, shows info for 4, 6 and 10 gallons.

I'm thinking I could upgrade size to the 10 gal but want to find more info 1st.

Thanks in advance.
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Old 12-08-2022, 01:32 PM   #2
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Tell us the make/model of your current water heater and we can make better suggestions.

If Suburban, they make several models that may have the same 'footprint". I think the 4 & 6 gallon are similar and the 10 & 12 gallon are similar.

Suburban water heaters
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Old 12-08-2022, 01:44 PM   #3
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Quote:
Originally Posted by 5picker View Post
Tell us the make/model of your current water heater and we can make better suggestions.

If Suburban, they make several models that may have the same 'footprint". I think the 4 & 6 gallon are similar and the 10 & 12 gallon are similar.

Suburban water heaters
Atwood - 6 gal / electric 110v and propane power source
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Old 12-08-2022, 04:33 PM   #4
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Quote:
Originally Posted by 5picker View Post
Tell us the make/model of your current water heater and we can make better suggestions.

If Suburban, they make several models that may have the same 'footprint". I think the 4 & 6 gallon are similar and the 10 & 12 gallon are similar.

Suburban water heaters
You're close. All of the current 10, 12, and 16s have the same dimensions except depth. The 4-gallon (pilot light only) 6-gallon units are smaller. in width and height.

Complete details below. Irrelevant since the OP doesn't have a Suburban.
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Old 12-08-2022, 05:36 PM   #5
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Quote:
Originally Posted by Larry-NC View Post
You're close. All of the current 10, 12, and 16s have the same dimensions except depth. The 4-gallon (pilot light only) 6-gallon units are smaller. in width and height.

Complete details below. Irrelevant since the OP doesn't have a Suburban.
I think that's what I said?? 4 & 6 similar and 10 & 12 similar.

All moot anyway as it is an Atwood.
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Old 12-09-2022, 05:47 PM   #6
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I think that's what I said?? 4 & 6 similar and 10 & 12 similar.

All moot anyway as it is an Atwood.
yea its a Atwood lol

I found last night that they make a water heater that is the XT model = its 6 gallon but is equivalent to 9 gallons and keeps same size as the 6. Still 110v and Propane heat source. We want both heat options.

Info from online sellers site:

The Atwood 90073 Gas/Electric XT Water Heater - 6 Gallon gives you the equivalent of 9 gallons of hot water in the same smaller 6 gallon size. The XT will heat up cold water to a higher temperature, then mix it with additional cold water to provide you with 50% more hot water.
Mixing is made possible through the rear mixing valve that is already installed.
Install in the same size cut-out dimensions as standard 6 gallon Atwood models.
Winterizing bypass kit is already built in.
Aluminum tank is light weight and eliminates the need for an anode rod.
Dimensions: 16"W x 12 1/2"H x 19 1/2"D
Propane Output: 8000 BTU
Electric Output: 1400 watt
Weight empty: 23 lbs.
Mfr. 2 year limited warranty

We are probably gonna go this route and we don't have to cut for the increase height for the actual 10 gal water heater.
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