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Hot Water Heater

This is probably a stupid question, but there has been so much talk on the forum about water heaters, etc.  Our coach is a 2003 designer all electric.  When I come off the road we have scalding hot water which lasts for maybe 10 hours.  Having no propane, do I have a hidden electric hot water heater or is it built into the aqua hot?  I found it is really not necessary to use the aqua hot for hot water as the aqua hot panel has a 115 VAC switch that always seems adequate.  If there is a hidden hot water tank somewhere, I have not found it. 

Gregory S
2003 Designer

Re: Hot Water Heater

Reply #1 –
Don't now your specific coach, but sounds like you have a motor-aid water heater. 

With a motor-aid water heater, one of the coolant lines to the dash heater goes through the water heater so engine heat warms the water.

Brett
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Hot Water Heater

Reply #2 –
Quote from: GregoryS –
This is probably a stupid question, but there has been so much talk on the forum about water heaters, etc.  Our coach is a 2003 designer all electric.  When I come off the road we have scalding hot water which lasts for maybe 10 hours.  Having no propane, do I have a hidden electric hot water heater or is it built into the aqua hot? 

It's part of the Aqua Hot design.  AH fluid loop gets heated by the engine while driving.

Michelle
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Hot Water Heater

Reply #3 –
Gregory,
If you happen to camp when it gets cool/cold outside, you'll need more than the electric for the aqua hot, hence the diesel switch.  If the outside temp gets to like 40 degrees and you run the furnace while showering you'll soon understand why you have the diesel switch.  Try it once.  That's all it'll take! 

Tom & Bill

2013 Jeep Grand Cherokee

Re: Hot Water Heater

Reply #4 –
You should be running the A-H at least once a month on diesel to keep it operating correctly.  The same advice applies to the generator.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: Hot Water Heater

Reply #5 –
I do exercise the aqua hot as well as the generator, but have found that I usually don't need them.  I have been in colder climates when the aqua hot is needed and it does make a huge difference.