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Old 03-02-2017, 08:44 AM   #15
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Originally Posted by susanlyth View Post
Unfortunately, tankless is our best option, and yes quite costly. We only need it for a handwash sink.
In light of your situation, I think theTruma is one of your better options. It uses a 1 quart tank that stays hot so there is no lag time when you turn on the water. Truma is made in Germany.
Used by some of the high end RV builders. The attached link in my earlier post will point you to a dealer. Good luck.
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Old 03-02-2017, 09:53 AM   #16
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In light of your situation, I think theTruma is one of your better options. It uses a 1 quart tank that stays hot so there is no lag time when you turn on the water. Truma is made in Germany.
Used by some of the high end RV builders. The attached link in my earlier post will point you to a dealer. Good luck.
Information I've seen so far leads me to believe this would be perfect.
If it can be plumbed into a 100# cylinder line, that is.

Do you use a 20# cylinder? Or a more robust supply?

Really appreciate your help.
Susan
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Old 03-02-2017, 10:12 AM   #17
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The one posted on Amazon doesnt need the 20lb cylinder, it just needs to be teed into the current system you use.
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Old 03-02-2017, 10:27 AM   #18
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FWIW Looking at what you want why not just replace your electric tank with a gas one? The other option would be the smallest gas fired HW tank you can find. They deal better with low flow for hand washing.

The major issue with tankless hot water is matching the flow to the use. If all you want is a hand washing sink you don't need high flow but a high flow unit may give you problems by not heating what you want when you want it. There are many threads around here about tankless systems and the problems with them.
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Old 03-02-2017, 10:33 AM   #19
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Originally Posted by susanlyth View Post
Information I've seen so far leads me to believe this would be perfect.
If it can be plumbed into a 100# cylinder line, that is.

Do you use a 20# cylinder? Or a more robust supply?

Really appreciate your help.
Susan
You most likely have a regulated propane line to your pizza ovens. So it should be a simple matter of connecting into the same line. The existing regulator would of course need to be checked to make sure it can handle the added volume. This is something the dealer, installer should be familiar with.
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Old 03-02-2017, 12:14 PM   #20
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I connected mine to the existing propane line that feed our stove.

I removed the included regulator and connected the heaters gas line to a gas service Tee, right at the stove connection.
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Old 03-02-2017, 10:32 PM   #21
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Unlike the american tankless waiter heaters, Truma is not affected by flow or pressure. It puts out a constant temperature weather its a very small flow or a full flow. It will probably have to be tempered with cold water if you are showering. For cleaning dishes etc. it will be plenty hot.
We really like our Truma water heater and would never have any other type or brand if we would get a different motorhome.
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Old 03-03-2017, 08:21 AM   #22
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I agree with NOTHERMARK that you are over thinking things. For the need you described, a 6 or 10 gallon LPG heater should be perfect. One of the most common units is from Atwood, but whatever fits your space and budget should get you going.

Washing hands and dishes will not overtax a normal water heater. Most RV WH units get set for about 160F, so as mentioned, you will be blending cold water to allow your hands to tolerate the hot water.

Tom
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