Tankless Hot Water Heater Help - Page 3 - Fiberglass RV


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Old 02-09-2015, 10:51 AM   #29
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OMG, David and I are agreeing on yet something else, I must be mellowing.... LOL


BTW: My water heater is 4 gallons, one of two that I was able to snag from The Bus Depot a few years back for.....$200 each, electric start and all. The other one went into a since sold Scamp.
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Old 02-09-2015, 01:19 PM   #30
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Yea, kinda freaking me out too.
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Old 02-10-2015, 06:35 AM   #31
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From the Community Rules- Do not take every opportunity to express your disagreement, incite argument, insult each other, or fan flames. Voice your opinion respectfully and then let it go.


I guess these fellows won't be continuing. Most unfortunate. I would like to have heard what they had to say. Raz
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Old 02-10-2015, 08:23 AM   #32
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Name: JD
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Florida
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For me it comes down to cost and space.
I plan to mount the demand water heater outside either on the tongue box or on the front of the trailer with the controls aimed inwards so that they can be controlled from the shower.
I have no problem with the 4 gallon, six gallon or other units other that I would like to save a little weight and money.
I may be wasting my money in this pursuit, but I think it has promise.
The water heater will be the only propane consumer on my trailer (as planned).
I would go with an electric heater like an undercounter tank or demand, but I may not be where I have a hookup and it takes a while to heat the water.
I have filled in the front window on my Scamp 16' (originally side bath) and I am moving the bath to the front for more headroom.
Since this is a complete rebuild I have a clean slate, but not unlimited funds.
I have a friend who uses one of the inexpensive units on his toy hauler when competing in cooking contests and he has had good results and recommended it to me.
I don't think it is safe to place one in the confines of a tight trailer hence the outside mounting. I don't know if it can be set and forget therefore the consideration of mounting where the controls can be used from inside.
I say to each his own. I am not particularly concerned with the efficiency tank vs tankless since the overall cost is relatively small.
I do want to keep the electrical demand below what a small inverter generator will supply.
4 gallons of water weight 32 lbs and the water heater may weigh another 30 (I don't know and I am just guessing here) for 60 lbs. (of course the demand heater weighs something too). Perhaps part of this weight will go towards the generator and a little fuel.
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Old 02-11-2015, 09:17 AM   #33
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expert?

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ok, let's ask this forward thinking fellow about a tankless . . .

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Old 02-11-2015, 09:30 AM   #34
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Quote:
Originally Posted by wessonjoe View Post
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ok, let's ask this forward thinking fellow about a tankless . . .

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He actually posted to Amazon a far more detailed report as to the pros and cons of the tankless water he used.
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Old 02-11-2015, 09:46 AM   #35
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I applaud anyone's effort to explore different methods to accomplish a goal
but one cannot escape the laws of physics . I believe that a propane tankless water heater may well be a satisfactory source of hot water for a trailer. Electric tankless water heaters on the other hand are not practical ,if one wants to have enough hot water for showering or other needs. The electrical service in our small trailers is at best 30 amps at 120 VAC which is insufficient to raise the temperature of cold water at the flow rate required for a shower . My only thought is " If a tankless water heater is satisfactory for the needs of a trailer ,is lighter, cheaper and more energy efficient than why are they not standard equipment from the trailer manufacturers. I was taught as a child "Don't ask a question if you don't want to hear the answer" To often on this forum we try to kill the messenger
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Old 02-11-2015, 10:10 AM   #36
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Originally Posted by wessonjoe View Post
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ok, let's ask this forward thinking fellow about a tankless . . .

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He fell off a mountain! This is not a happy story.
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Old 02-11-2015, 10:13 AM   #37
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WOW.... He has a 218 gallon water tank (1700 lbs) in the ceiling and showers with a quart of water a minute. That doesn't sound at all like my grandchildren's grandfather's FGRV.... LOLOLOL
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Old 02-12-2015, 02:19 PM   #38
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Washington
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At our way off the grid cabin, we used an on demand for the shower house and a six gallon rv water tank hung under the cabin for the kitchen. The two buildings were 75' apart (not my doing!) so using the same system was not feasible. The rv tank was put in because I wanted hot water in my kitchen to wash my hands. If we were to do this again I would use only the rv tank. Difference in propane usage was nil.
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