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Old 12-03-2007, 10:08 PM   #1
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1985 34.5' Airstream 345
La Canada , California
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Auxiliary Water Heater

Since our '85 345 is normally parked on some vacant land we own, I was wondering if there is any way add an auxiliary water heater to give greater hot water capacity. I would have to add a tee somewhere between the water heater and the shower. Anyone have an idea about how and where to do this?
GL
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Old 12-03-2007, 10:37 PM   #2
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You might want to check with Lewster here on the forum about a tankless RV water heater.
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Old 12-04-2007, 06:19 AM   #3
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Quote:
Originally Posted by grovelander
Since our '85 345 is normally parked on some vacant land we own, I was wondering if there is any way add an auxiliary water heater to give greater hot water capacity. I would have to add a tee somewhere between the water heater and the shower. Anyone have an idea about how and where to do this?
GL
Hey GL,

Since your AS is parked and will not be moving, you have the option of an on-demand, tankless water heater that will give you an unlimited supply of hot water. There are many types other than the RV-500 which is the ONLY tankless propane-fired water heater certified for RV use. You don't need to spend the $800-900 for this model.

There are many other options for household units that will suit your needs perfectly in both electric and LP models. I have installed many of these in homes and can give you lots of direction for this type of unit.

PM me of you want more info ...........................
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Old 12-04-2007, 08:12 AM   #4
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1985 34.5' Airstream 345
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Thanks, Lew. I was considering a tankless heater. I've had one in my house for nearly 20 years and it's been great. I've been looking at a Bosch model which can be installed outside and burns no propane until you turn on the water. I'm thinking I would mount this unit outside but close to the A/S and run a line to a tee between the on-board water heater and the shower. Or, should the tee come before the on-board heater? Also, I don't know the best location and the best way to gain access.
GL
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Old 12-04-2007, 03:49 PM   #5
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If you are going to use a Bosch, then you don't need the intenal water heater at all. Realistically, it will only get in the way! You can run a PEX line from the Bosch right to the hot water outlet feed from the trailer's water heater and connect right into that after you remove the connection from the tank.

Use PEX tubing and Sea-Tech fittings and make your life easy!!
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Old 12-04-2007, 08:30 PM   #6
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Lew, I hate to sound so ignorant (which I am) but where is the water heater in an '85 345?
GL
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Old 12-04-2007, 08:46 PM   #7
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Good question.

Not having worked on a 345 water heater IIWY, I would look on the exterior for the approx. 12 X 12" door that covers the water heater. Then you will know where it is on the inside. It's probably covered inside by a cabinet or closet or similar.

Perhaps you could post that question on the 345 forum and get your definitive answer from an owner.
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Old 12-04-2007, 09:31 PM   #8
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I'll try that. Thanks again, Lew
GL
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Old 12-09-2007, 04:04 PM   #9
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345 forum? What 345 forum? Where is the 345 forum?
inquiring minds want to know.
mel
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Old 12-10-2007, 06:36 AM   #10
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The water heater is located under the aft dinette seat in most 345s. Look for the louvered access door from the outside (about 12 x 12)...it's under whatever is inside right there.

You'r in the right forum already here....I don't think there is a specific 345 forum. In addition to this site, you might also consider posting tech questions on ThisOldRV.com, lots of Airstream motorhomers (non Airstream as well) over there too.
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Old 12-10-2007, 08:43 PM   #11
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Thanks, Steven, for the good advice.
GL
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