Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-29-2009, 01:49 PM   #1
1 Rivet Member
 
strohmdl's Avatar
 
1989 32.5' Airstream 325
Santa Paula , California
Join Date: Jun 2008
Posts: 7
Images: 1
Hot Water Operation

Can any one tell me if/where there is a switch for the hot water (not the instant hot tap)? The manual mentions a switch, but I have no idea where it is. It also talks about the water being heated via engine heat when driving and then switching to the on demand LP heater with a small tank.

I just want my wife to be happy with a hot shower.

Thanks,
__________________

__________________
strohmdl is offline   Reply With Quote
Old 07-29-2009, 02:21 PM   #2
3 Rivet Member
 
MaryContrary's Avatar
 
1984 31' Airstream310
on the road , CA and OR this summer!
Join Date: Apr 2009
Posts: 101
Images: 41
oh mee too!
is there a magical switch for engine heated hot water?

my hot water heater pilot gets going, starts bubbling and heats but only bursts of hot-ish water come from the taps.
i cant seem to find a thermostat dial or screw, anyone have a picture?
__________________

__________________
1984 310 Limited Motorhome
my AS Moho blog
for the love of all vehicles round and shiny

MaryContrary is offline   Reply With Quote
Old 07-29-2009, 03:37 PM   #3
Rivet Master
 
345bill's Avatar
 
Las Vegas , Nevada
Join Date: Apr 2007
Posts: 608
On our 1990 345LE the switch for the hot water is located above the bathroom sink. There's a group of four switches. The top two operate bathroom lights. The bottom left is water pump, bottom right is for hot water. The hot water switch has a Red indicator light built into it that is illuminated when turned on.

Hope yours is the same.
__________________
345bill is offline   Reply With Quote
Old 08-01-2009, 10:39 AM   #4
Rivet Master
 
silverback's Avatar
 
2006 28' Safari SE
Currently Looking...
Sierra Vista , United States
Join Date: Jun 2003
Posts: 702
above the rug down from stove & kitchen sink

That's where the hot water heater switch is on our 81 280 Excella. I found it crawling on the floor by the stove and kitchen sink. Just above the rug. I had not heard before of engine heated water. I think that would be neat.

-Ken
__________________
4CU Charter Member
silverback is offline   Reply With Quote
Old 08-01-2009, 05:09 PM   #5
Rivet Master
 
1989 34.5' Airstream 345
Silverton , Colorado
Join Date: Oct 2003
Posts: 2,101
Our 89 345LE has engine-heated water...don't know if there is a cut-off valve to the engine circulation, but if there is, it's probably under the rear dinette seat near the water heater...and, YES, having hot water upon stopping is GREAT!...especially if it's included in the mpg...
m
__________________
Michael & Tracy
1989 345 Motorhome
CHARTER MEMBERS: FOUR CORNERS UNIT, AND PROUD OF IT!!!
We live for the moment, 'cause when you get there, it's gone...
ScrapIrony-2 is offline   Reply With Quote
Old 08-01-2009, 08:34 PM   #6
Rivet Master
 
3 Dog Nite's Avatar
 
Currently Looking...
1989 34.5' Airstream 345
Cleveland , Tennessee
Join Date: Jul 2007
Posts: 787
There is a bypass valve under the rear dinette seat. this decides if the engine heats the water tank or not. It was standard on our 345LE but an option on other models. The engine's hot water also works the aux. heater under the dinnette seat.

Ricky
__________________
"Sometimes I wonder if the world is being run by smart people who are putting us on, or by imbeciles who really mean it." Mark Twain

AIR 22749 WBCCI 2349 NOVA TAC TN-6
1989 345 LE Classic Motorhome
3 Dog Nite is offline   Reply With Quote
Old 09-02-2009, 09:09 AM   #7
1 Rivet Member
 
1965 24' Tradewind
1984 34.5' Airstream 345
slaughters , Kentucky
Join Date: Feb 2009
Posts: 7
Yes, on my '84 345 there is a heat exchanger located under the couch close to the driver's seat; there is a pull switch to open and close the hot water supply from that big, powerful 454. Then you will have to activate your front warm water circulation pump and you are in business!
__________________
joegooch is offline   Reply With Quote
Old 09-03-2009, 12:59 PM   #8
3 Rivet Member
 
MaryContrary's Avatar
 
1984 31' Airstream310
on the road , CA and OR this summer!
Join Date: Apr 2009
Posts: 101
Images: 41
Brad, you have one?
i dont know but....i do have piping hot water after driving but the weather is very hot here in Tx right now..but not hot enough to warm up the plastic tanks, and i do get cold water from the mixer dial
my hot water heater is off...and i'm boggled...cant find this magic switch
well, as they say dont mess with a good thing.
__________________
1984 310 Limited Motorhome
my AS Moho blog
for the love of all vehicles round and shiny

MaryContrary is offline   Reply With Quote
Old 09-07-2009, 08:55 AM   #9
Rivet Master
 
bkahler's Avatar

 
1974 20' Argosy 20
Richmond , Kentucky
Join Date: Jan 2003
Posts: 6,356
Quote:
Originally Posted by mary quite c View Post
Brad, you have one?
i dont know but....i do have piping hot water after driving but the weather is very hot here in Tx right now..but not hot enough to warm up the plastic tanks, and i do get cold water from the mixer dial
my hot water heater is off...and i'm boggled...cant find this magic switch
well, as they say dont mess with a good thing.
Mary,

I'll look at ours this afternoon and see if there are hoses running from the engine compartment to the water heater. I know there are cooling line hoses under the couch that run to an auxiliary heater located there. I've never checked to see if they go anywhere else. We never really use hot water until long after we've parked so I can't say if the water gets hot or not.

You should be able to look under the sink and see if there are water hoses running from the from the front of the coach to the sink area.

Brad
__________________
Air forums # 1674
1974 20' Argosy Motor Home
1974 31' Excella trailer (parting out, as of 4/1/2015 I have wheels, brake drums, windows & holding tanks left to sell)
bkahler is offline   Reply With Quote
Old 09-07-2009, 12:38 PM   #10
4 Rivet Member
 
Chuckles's Avatar
 
1983 31' Airstream310
Iwerne Minster , Dorset. UK
Join Date: Aug 2005
Posts: 270
I think the first thing to find out is if the water heater actually does have the mains electric option, some run on gas(propane) and engine only. Some only gas. (sorry propane)
If there is a main power option on some 345's there is a multifunction rotary switch over the cooker in the overhead locker, check that first. If not a look at the heater from inside will be a give away.
There are some wires from the switch in the bathroom that operate the gas ignitor circuits and the flame-out. The flame-out light is on the water heater switch in the bathroom and should only be on when the flame has failed. Switch off then on to reset - you should hear the burner fire up.
Also on the heater from inside look for the 120volt mains cable - it will be heavier and solid core. If that is not there then you may have gas fired only.
On some 345's on the back of the heater there is a by-pass valve that isolates the water heater from the engine coolant circuit. Again there may be a space heater under the couch on the engine heater circuit. At the heater circuit junction engine end the thtree-way valve that also has a diverter valve facility.
Hope this helps
__________________
Chuck
Dorset UK

Don't take life so seriously.... it is not permanent!
Chuckles is offline   Reply With Quote
Old 09-08-2009, 08:09 AM   #11
1 Rivet Member
 
1965 24' Tradewind
1984 34.5' Airstream 345
slaughters , Kentucky
Join Date: Feb 2009
Posts: 7
Yes, more about the warm water heating system on the 345! (1984) My 1984 345 has a heat exchanger under the couch behind the driver's seat; there is a pull that will open the valve and let the engine hot water flow through the heat exchanger. Also, you must set the room thermostat at a temperature that will start the circulation pump that pumps the water through the warm water heat radiators that run throughout the front of the coach. My 345 has warm water baseboard radiators with a LP furnace; at this LP furnace there is another heat exchanger that heats hot water for the shower, bathroom, and sink.
So, when the engine heat exchanger is open under the couch the heat exchanger at the furnace also heats the hot water for bath, etc., and you do not need to turn on the LP furnace. But, if you are not running the coach engine, you must turn on the LP furnace to heat both hot water for the shower, bath, sink, as well as the baseboard radiators that heat the coach.
My '84 345 has two LP furnaces--front and rear--that are independent and both heat warm water baseboard ratiators for the coach but only the front one heats a heat exchanger for bath, etc.
Here is more complication. There is also an electric water heater in the front for the bath, shower, sink, and it is activated by the electric distribution switch located above the LP stove. On the '84 the switch turns to the front air, the rear air, the microwave, and electric heat. Of course, either the generator must be running or you must have "shore" power for this electric heater to work. This electric heater allows you to heat water for bath, etc., without using the LP furnace.
In summary, there are three sources for hot water : 1) engine hot water from the mighty 454 through the heat exchanger under the couch, 2) the LP furnace , and 3) the electric heater.
This is on my '84 345. Hope it helps.

Joe
__________________
joegooch is offline   Reply With Quote
Old 09-09-2009, 12:59 PM   #12
Rivet Master
 
345bill's Avatar
 
Las Vegas , Nevada
Join Date: Apr 2007
Posts: 608
In summary, there are three sources for hot water : 1) engine hot water from the mighty 454 through the heat exchanger under the couch, 2) the LP furnace , and 3) the electric heater.
This is on my '84 345. Hope it helps.

Joe[/QUOTE]

Joe- If you lived in our climate you could add one more item in your summary. It's inexpensive, solar and called The Mohave Desert.
__________________

__________________
345bill is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
No water in hot water line timkim Fresh Water Systems 6 12-13-2008 06:26 PM
hot water water on demand with a with a normal water heater Frank's Trailer Works Water Heaters, Filters & Pumps 3 09-25-2007 01:24 AM
Hot Water jfowler218 Water Heaters, Filters & Pumps 1 09-09-2006 10:10 PM
water leak- hot water tank vent glacierrunne Water Heaters, Filters & Pumps 2 05-29-2006 08:14 PM
Hot Water to Hot Raptorrider2001 Water Heaters, Filters & Pumps 3 08-20-2003 07:58 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:48 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.