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Thread: Is 12 gallons enough?
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12-01-2020, 11:40 AM #1
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Is 12 gallons enough?
The rig that we are looking at has a 12 gallon hot water heater. There are only two of us. Is the 12 gallon tank normally sufficient or should we look into a tank less unit.
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12-01-2020, 11:55 AM #2
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Our TT has a 6-gallon. Just the wife and I and it has not been a problem. We use hot water for showers and dishes. We don't have a washer or dishwasher in our Imagine.
You don't say what kind of rig you have and what demands for hot water you have. I think 'enough' may be different for different people. For us 6 gallons is enough. We don't use much. The hot water is so dang hot that I'm sure we use far more cold to get the right temp.Last edited by OurNewEra; 12-01-2020 at 11:58 AM.
Mike & Lisa
Central Florida
2021 Imagine 2970RL
1996 Chevy K3500 Crew SRW 7.4L Gas
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12-01-2020, 12:04 PM #3
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Thanks so much for your reply. We are purchasing a Momentum 381M
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12-01-2020, 12:12 PM #4
One thing about RVing, you generally come very acquainted with Navy showers, especially since there's only so much holding tank volume. Certainly my wife and I know plenty of folks who exclusively camp with full hookups and enjoy 20-minute showers and have the tankless heaters, but you should not feel that is a must have. We got by on 6 gallons, got spoiled with 10 gallons, and now feel we're in luxury with 12 gallons!
Rob & Nikki + Cloverfield
2020 Grand Design Solitude S-Class 3350RL
2015 RAM 3500 Longhorn Laramie Crew Cab, Long Bed, 4x4 Dually Cummins/AISIN
Mountains of Pennsylvania
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12-01-2020, 12:12 PM #5
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The hot water heaters run at about 160 degrees and can run on both electric and gas at the same time (for minimum recovery time). Given this you can both take long showers and should still be fine. Even with a 10 gallon HWH and a family of 4 we never ran out of hot water.
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12-01-2020, 12:25 PM #6
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My wife and I have never run out of hot water with our 12G tank and we don't skimp on our showers. I still think a hot shower in the morning is one of life's great luxuries. I used to run electric only for the water heater but after seeing our first electric bill from Southern California Edison I switched to propane!
Brian & Kellie
2020 Solitude 310GK-R, FBP, 1,460w solar, 540ah BBGC3, MORryde IS w/disc brakes
2020 F-350 Platinum SRW Powerstroke Tremor, 60g TF fuel tank, Hensley BD3-F air bag hitch
Previous setups:
2019 Solitude 373FB-R, 2019 F-350 Platinum DRW Powerstroke, Hensley BD5 air bag hitch
2016 Reflection 318RST, 2016 GMC 3500 Denali SRW Duramax, Hensley BD3 air bag hitch
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12-01-2020, 12:32 PM #7
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Rob & Barb
2022 Solitude 378MBS
2022 RAM 3500 SRW HO Aisin 4x4
Waterloo, Ontario, Canada
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12-01-2020, 03:29 PM #8
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A friend of mine is currently living in a LG 5th wheel with a on demand HWH. He hates it and complains about it constantly. He is probably going to buy a small water heater tank since the 5th wheel is stationary.
Me and wife have a 6 gallon. Water comes out so hot that you have to use a lot of cold to make the shower temp right. That turns our 6 gallons into 9 or 10 usable gallons for a shower. It only takes about 20 minutes to do a full recovery between showers. Hot water is something we don't complain about. You'll be more than fine.Charles and Susan
2021 Ram 3500 Laramie, 6.4 Hemi, 4x4 CCSB
2021 337rls w/ Andersen hitch.
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12-01-2020, 03:37 PM #9
We have been extremely pleased with the performance of our 10 Gallon Suburban unit in our S-Class. Never ran out of hot water even with back to back showers.
2019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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12-01-2020, 03:42 PM #10
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We spent our first 4-1/2 years full-time in a fifth wheel with a 6-gallon water heater. We had to time showers... especially when the incoming water was very cold and/or my wife washed her (long) hair. It just meant giving the WH time to recover. Our new Solitude has the 12-gallon water heater and it's wonderful! We have yet to run out of hot water showering one after the other before bedtime.
RobU.S. Army Retired
2012 F350 DRW CC LB Lariat PS 6.7
2020 Solitude 310GK-R, MORryde IS, disc brakes,
Sailun LRG tires, solar, DP windows, W/D
(Previously in a Reflection 337RLS)
Full time since 08/2015
Plastic on Recliners?
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