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01-18-2025, 01:04 PM
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#1
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Junior Member
Join Date: Nov 2024
Posts: 4
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Hot water - changing to electric?
I have a 2005 Safari Cheatha we had a butane on demand hot water system put in
Has anyone changed it from butane to electric
If so about how much does it cost
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01-18-2025, 01:54 PM
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#2
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Senior Member
Join Date: Apr 2024
Location: WI Driftlesser
Posts: 2,586
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how much did it cost to change to on demand? might be $100 less to change to electric, that would be a tank type, on demand is not realistic for RV electrical services.
Basically impossible to suggest what it would cost without knowing if you're doing it yourself, or hiring it done and where.
__________________
"Bringing third world electrical work to first world luxury." RV makers of Murica!
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01-18-2025, 04:19 PM
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#3
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 32,253
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I don't think a tankless on-demand WH can be changed from LP to electric.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;GS Life member,FMCA " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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01-18-2025, 05:19 PM
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#4
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Senior Member
Join Date: Sep 2021
Posts: 2,023
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I assume you mean propane. Ive had those on boats and loved them. Is there some compelling reason to switch ? It would require a whole new tank..and you paid to put that one it.
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2004 Safari Cheetah PDQ 330 Cat
USAF SERE
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01-19-2025, 10:25 AM
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#5
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Senior Member
Monaco Owners Club
Join Date: Jun 2014
Posts: 16,203
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What was the original water heater??? Make and Model ????
Anything is possible with enough $$$$ But I think you'd be limited to a traditional tank type water heater in the RV. If you already have propane available I'd just suggest a dual gas/electric type.
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Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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01-19-2025, 10:44 AM
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#6
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Senior Member
Join Date: Jul 2010
Posts: 5,702
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Don't believe you can swap a gas fired on demand water heater to electric. Even if you could, I think you would be highly disappointed with the its ability to heat the water fast enough, unless you have lots of power available.
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Tom
2025 BTCruiser 5255
2021 Jeep Gladiator Sport Willys
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01-19-2025, 01:13 PM
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#7
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Member
Join Date: Sep 2023
Posts: 65
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Electric on demand water heaters take A LOT of amperage. I don't think that 50 amp x2 (50 amp 240 volt) will get you a heater big enough for what you want. If you want to be electric only you will be stuck with a tank type electric.
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2003 Monaco Windsor 8.9 ISL.
2004 D-Max crew cab.
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01-19-2025, 08:16 PM
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#8
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Member
Join Date: Sep 2011
Location: Templeton Calif
Posts: 89
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Your totally right an RV does not have enough power to do on demand tank less, If you want all electric you need a tanked water heater, In my house 8 months ago I installed a Rinnai RX199IN tank less water Natural gas, It takes way more electric to supply a house with 220v tank less
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Art
97 Prevost Royale 40 foot
470 HP Detroit Series 60 four Stroke
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01-21-2025, 10:40 PM
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#9
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Junior Member
Ford Super Duty Owner
Join Date: Jul 2013
Posts: 13
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We installed a 10 gallon 120 volt Rheem heater we bought at Home Depot in the rear compartment of our 2021 Emblem and wired a 25 foot power cord to plug into the coach outlet or campsite power tree. RV came with a Girad propane insta hot water heater and its junk. piped new heater in pex in series with Girad unit and sharkbite vales to isolate either one. About $400.00 for new heater versus $995.00 for Atwood propane/electric unit. Good luck and enjoy the ride.
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01-23-2025, 09:11 AM
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#10
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Senior Member
Join Date: Jan 2024
Location: Rogue River OR
Posts: 521
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Typically available RV tankless water heaters are either only electric or only propane and don't work well for RVing for a number of poor engineering design reasons. However, we have recently started using a propane/electric 6,500A Watt tankless water heater that works great for RVing. It uses a 240VAC circuit with a double-pole 30A circuit breaker (and actually only uses a maximum of 27A) to generate this 6,500 Watts (i.e., 240VAC times 27A) which equates to 22,000 BTU/H (i.e., 6,500 Watts times 3.41 BTU/H per Watt) which at a flow rate of 0.8 GPM (our dry camping shower head flow rate) raises the supply water temperature 55 degrees F (i.e., 22,000 BTU/H divided by 0.8 GPM divided by 500) which is then enables heating water temperature as cold as 50 degrees F (105 degrees F minus 55 degrees F) to achieve our preferred 105 degrees F shower temperature. Even 32 degrees F water temperature can be heated to higher temperatures and/or higher flow rates by using only propane (which generates 44,000 BTU/H) or by using both electric/propane (which then generates 66,000 BTU/H).
We mostly do dry camping and hence mostly use only propane for our tankless water heater. However, when we have shore power, it is nice not having to use any propane at all. We like the reduced weight, reduced annual maintenance (no sacrificial anodes to frequently replace and tank sludge to remove) and the recirculation capability from heater to faucet that it provides which reduces our dry camping water usage and provides potable water system freeze protection. We use RV antifreeze to provide black and gray water freeze protection. However, tankless water heaters do require periodic descaling using bypass valves in the system to allow pumping a descaling solution through just the tankless water heater.
Gayle & Bob
"Los Gatos Casita"
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