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Old 10-28-2021, 08:55 AM   #1
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2022 25' International
Belleville , Michigan
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Trading tanked hot water heater for tankless hot water heater?

I purchased a new 2022 25FB International this year and took delivery of it in September. My wife and I boondocked with it a couple times and the Girard tankless hot water heater is just not working out for us. We are very stringent about are water usage and having to flow a lot of water to get it hot and keep flowing a lot of water to keep it hot does not work for us. So I am looking to swap it out with a tank hot water heater.


Anyone here with a tank hot water heater, 5 years old or so interested in upgrading to a tankless hot water heater, trading with us? Ours is brand new, only heated water twice.
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Old 10-28-2021, 09:01 AM   #2
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Boy, can't help you with your request but I am interested in following this thread. Is there room to swap the tank less with a standard HW tank? I simply cannot understand why they did this. At a minimum, they should offer an option for a tanked heater. If you boondock, you are basically out of luck. Good luck.
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Old 10-28-2021, 09:08 AM   #3
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I am also strongly considering buying one of the newer hot water heater models Dometic is making like the WH-6GA. They only sell white and black doors for it currently so I would pant the door to match.
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Old 10-28-2021, 09:32 AM   #4
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Now that you mention it, I was looking closer at the new Dometic WH-6GA. It has a regular door option and the door with adapter to fit a old water heater opening.


Wondering if I needed the adapter plate I just measured the opening that my Girard GSWH-2 is in and its 12-3/4" x 12-3/4" (maybe closer to 13") which is the non-adapter type. Looks like both Airstream and the water heater manufactures have updated to a smaller opening. Old being 16 x 13 and new being 13 x 13. I couldn't trade for a older water heater if I wanted to. Looks like ill have to buy the Dometic WH-6GA.
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Old 10-29-2021, 09:19 AM   #5
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We have a tankless hot water system in our home and we, like you, were very concerned with the amount of water wasted waiting for water warm enough to shower or wash dishes. We installed a recirculating pump and valve that cut water consumption 70% in our house. It is installed under the sink on the far side of the house from the tankless water heater. We push a button and pump sends warm water down the cold water pipe until the hot water reaches desired temperature. It came with a 110v adapter, I’m not sure about the actual required voltage, but that could be worked out for boondocking.

PROZRTED Smart Instant Hot Water Recirculating Pump System with Bulit-In Thermostat HBS24-12 https://www.amazon.com/dp/B08R1JCR43..._ETQrXCvxcgtc5
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Old 10-29-2021, 10:08 AM   #6
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Why tankless?

I am mystified why anyone (including Airstream) would replace a hot water tank system with a tankless system. Slow to heat up, high cost, and waste of water waiting (especially dry camping) are arguments against What are the good points? Smaller unit? Reduce production costs/labor for Airstream in new units? Please explain. Thanks.
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Old 10-29-2021, 10:22 AM   #7
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We had a tankless heater in our home and loved the savings in electricity. At first I thought it would be a good idea for our trailer. But, fortunately, this forum has reminded me that my house and my sometimes off grid trailer are different species. I am happy with my little tank that gives me hot water almost instantly and waste very little.
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Old 10-30-2021, 07:51 AM   #8
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The only "on demand" water heater worth the effort to install is a Truma comfort. It has a small reservoir that is constantly warmed back up, so stingy water use does not result in hot and cold slugs of water. It Instantly heats up with more available but than Girard, and is also a multiple stage burner. Overall they use.less gas and heat more water than a Girard and the retired Atwood/dometic

A new style dometic water heater is available, it uses a 13x13 hole, but sends the 6 gallon tank into the trailer, so you need a lot of interior space, they don't fit under a bathroom vanity or some night stands.
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Old 11-03-2021, 06:57 AM   #9
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I moved forward with the Dometic WH-6GA. Was pretty straight forward took a couple hours, and only some slight modifications to fit the 4" deeper unit.
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Old 11-03-2021, 07:20 AM   #10
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Quote:
Originally Posted by robwolff3 View Post
I moved forward with the Dometic WH-6GA. Was pretty straight forward took a couple hours, and only some slight modifications to fit the 4" deeper unit.
Good on 'ya....looks like a 1st rate install. How big is the tank? Looks a good size.👍

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Old 11-03-2021, 07:53 AM   #11
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We're waiting on delivery of a new 25ft FC FBT and have read other posts on the tankless heater - doesn't sound like a great idea in this application.

Does the factory use any insulation on the original hot water lines?

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Old 11-03-2021, 09:11 AM   #12
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The justification often given for the on demand WH in a RV is so that you can take unlimited length hot showers.

I like my propane heated 6 gallon Atwood. It is also electric but I never run it on electric.
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Old 11-04-2021, 07:50 AM   #13
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The WH-6GA is the 6 gallon model, not 6 gallon effective. The way we camp boondockling I have no concerns about unlimited hot water. 99% of the time I will turn it on to wash dishes and that's it. Now I wont have to run the water like crazy either to get hot water. I can get the hot water up to the facet and let it trickle out.


I have not seen any insulation on the hot or any of the water lines. Considering all of the water lines are inside the Airstream and not in the exterior walls there is no risk of freezing. Seems pretty standard to me.


If anyone is in the market for a basically new Girard tankless hot water heater ive got one for sale



https://www.airstreamclassifieds.com...ichigan-364023
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Old 11-10-2021, 11:06 AM   #14
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Why Airstream went with the Gerard and not the Truma is beyond me. They always choose bucks over quality.
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Old 11-10-2021, 02:31 PM   #15
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Quote:
Originally Posted by robwolff3 View Post
I purchased a new 2022 25FB International this year and took delivery of it in September. My wife and I boondocked with it a couple times and the Girard tankless hot water heater is just not working out for us. We are very stringent about are water usage and having to flow a lot of water to get it hot and keep flowing a lot of water to keep it hot does not work for us. So I am looking to swap it out with a tank hot water heater.


Anyone here with a tank hot water heater, 5 years old or so interested in upgrading to a tankless hot water heater, trading with us? Ours is brand new, only heated water twice.
We also are very unhappy with the OnDemand. My wife is tired of cold water shocks. We done all the forums suggestions and bottom line it is a horrible design. Why not put a Truma in there $$$$ but it works. My dealership is replacing them with the old units.

Anyone claiming this new water heater is great is a polar bear, seal or never camp Normal warm blooded people deserve better. We’re stuck with it once warranty runs out I’ll install a Truma.
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Old 11-11-2021, 06:24 AM   #16
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We own a 2021 International 25FBT and have adapted very well to the inline heater. We catch the shower cold water in a bucket for 20sec or so and use that for toilet flush water. If you set the temperature for what you actually use- like 115- then you can run more water volume which heats up quicker. We boondock most of the time but when we DO have city water an unlimited hot shower is really nice.
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Old 11-11-2021, 08:10 AM   #17
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In our old 2014 International 27FB, we replaced the stock water heater with a Truma AquaGo Comfort, and it was fantastic. Your rig, your money, your call, but in our actual experience with the actual product in our actual trailer, we found this to be a fantastic upgrade, and we never had cause to regret the decision.
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