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11-20-2010, 11:19 AM
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#1
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Junior Member
Join Date: Oct 2010
Posts: 11
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Has anyone tried a tankless hot water heater ?
I found an inexpensive one at this link:
RV Camper LP Propane Tan...
However i'm not sure if this is do-able. I am sick of taking 2 minute showers and was thinking of other options.
Thanks
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11-20-2010, 04:10 PM
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#2
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Villa Estate 392FLFB
Join Date: Aug 2010
Location: Saskatchewan, Canada
Posts: 1,085
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I have seen people use them. some guys use them for an outdoor shower. not sure how you vent it though. that is prob the biggest issue
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One state/province at a time!
Full Timing - Salem Villa Estate - 392FLFB - Purchased July 29th 2010
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11-24-2010, 07:53 PM
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#4
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Senior Member
Join Date: Nov 2009
Location: Dahlgren VA
Posts: 317
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Quote:
Originally Posted by BKennedy
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Bryan
Keep us posted and take pictures..Ken
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Ken and Velda
Dahlgren, VA.
2008 Georgetown XL 378
2010 Ford Escape Limited
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11-24-2010, 10:33 PM
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#5
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Senior Member
Join Date: Sep 2010
Location: Canada
Posts: 662
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Ooooooo.....me likey!
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11-25-2010, 12:02 AM
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#6
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Member
Join Date: Sep 2010
Posts: 82
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Liking that here, too. I just contacted them through the website to see if that will work in a Sandpiper.
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Bob Mueller | Fulltiming family of 9 since Feb 2011
More About Me
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11-25-2010, 09:35 AM
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#7
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Member
Join Date: Nov 2010
Posts: 66
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Quote:
Originally Posted by kvtaylor
Bryan
Keep us posted and take pictures..Ken
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Ken
Will do. I talked with the folks at Girard and they told me that it was designed to be a direct drop in for the Suburban. I installed a Noritz 6.9gpm tankless water heater in my house back in 2006 and it has been working perfect no issues and hot water forever. I think it may start coming standard in RV's at some point. It all works off water flow. When you turn on the hot water it ignites and heats water when you turn it off it shuts down. Will save lots of propane. I will keep everyone here informed on how it goes with mine. That is when I get it, trailer on order should take delivery last week in December... can't wait.
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11-25-2010, 12:58 PM
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#8
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The Old Man
Join Date: Jun 2010
Location: Huntersville, NC
Posts: 330
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Any idea how much? Would love to have one!
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2010 Flagstaff 829RGSS
Still to go: AK, NL, NT, NU, YT
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11-25-2010, 05:39 PM
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#9
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Member
Join Date: Nov 2010
Posts: 66
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Quote:
Originally Posted by Willis
Any idea how much? Would love to have one!
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They run around $695 depending on where you purchase from.
Here is a link to a dealer for them.
RV Tankless Water Heater from Girard
Hope this helps
Regards
Bryan
Team Kennedy
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11-25-2010, 11:10 PM
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#10
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Senior Member
Join Date: Jun 2010
Location: Southern Alberta
Posts: 459
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Are they only propane?
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***** ***** ***** 2011 Georgetown 320DS new June 2010
days camped in 2010: 61
days camped in 2011: 37 (up to Aug 1st)
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11-26-2010, 01:11 PM
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#11
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The Old Man
Join Date: Jun 2010
Location: Huntersville, NC
Posts: 330
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Quote:
Originally Posted by 2Susan
Are they only propane?
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In the FAQs on their site they say they are only propane. I had the same question. But I think the benefits of tankless would outweigh the advantage of using AC. Besides, this unit only uses propane on demand so it won't be running all the time like a regular water heater.
__________________
2010 Flagstaff 829RGSS
Still to go: AK, NL, NT, NU, YT
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11-27-2010, 04:15 PM
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#12
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Member
Join Date: Nov 2010
Posts: 66
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Quote:
Originally Posted by Willis
In the FAQs on their site they say they are only propane. I had the same question. But I think the benefits of tankless would outweigh the advantage of using AC. Besides, this unit only uses propane on demand so it won't be running all the time like a regular water heater.
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Your correct. They make electric and gas versions for your house but the gas versions are much more efficent. Propane would be the only way you would want it for a RV the way I see it. And also it is only on when you turn the hot faucet on. Glad to see this technology make it into RV's Versions for your home have been around for over 15 years.
BK
Team Kennedy
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11-29-2010, 10:21 PM
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#13
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Anacortesians
Join Date: Oct 2010
Location: Anacortes, WA
Posts: 1,166
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I did some basic engineering calculations on these things and I'm very skeptical. Someone identified a 6.9 gpm flow rate which works out (6.9 * 60 * 8) to about 3400 pounds of water per hour. Assuming an inlet temperature of 45 F and a temperature at the shower head of 115F, a heat transfer rate of 235,000 BTU/hr would be needed for continuous operation with no degradation in temperature (3400 * 70).
This works out to about 92 horsepower (235,000/2545) which converts to 68 KW (92*0.746), or 60Amps at 115V.
All the S&B versions I've looked at have needed 220V wiring - maybe this is why?
I don't have data on the calorific value of propane so I don't know how much you'd have to burn per minute to get the equivalent of 68 KW.
Any other engineers on the forum? Get your slings and arrows out - I may have dropped a 12 or a 60 in there someplace.
If DW wants the hot water to last longer when she showers, maybe a much bigger (40-gallon residential type) water heater would be a better idea.
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Frank and Eileen
No longer RVers or FR owners
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