hot water rv heater

Old-Biscuit wrote:
Water is only COLD upon initial filling.....reheat occurs when water temp gets to 110*F....that is still considered HOT
So get off the semantics Sheesh.

It heats cold water, it maintains hot water. Didn't know I needed your permission to comment about someone else's post, I'll consider that moving forward.

Old-Biscuit wrote:

smarty wrote:
not mentioned thus far is that when you lite your hot water heater after not being used for awhile one should always check the relief valve on the hot water heater to make sure all air is purged. If no water comes out your tank is empty. DO NOT TURN THE HEATER ON. If this is the case.

Actually .....NOT the T&P but open a faucet Hotside so air is bleed out of hotside/Water heater fills to correct water level and maintains the AIR POCKET that helps control pressure increases when heating water

Opening the T&P can disrupt the formation of that air pocket

It is surprising how many people do not realize that.

smarty wrote:
not mentioned thus far is that when you lite your hot water heater after not being used for awhile one should always check the relief valve on the hot water heater to make sure all air is purged. If no water comes out your tank is empty. DO NOT TURN THE HEATER ON. If this is the case.

Actually .....NOT the T&P but open a faucet Hotside so air is bleed out of hotside/Water heater fills to correct water level and maintains the AIR POCKET that helps control pressure increases when heating water

Opening the T&P can disrupt the formation of that air pocket

not mentioned thus far is that when you lite your hot water heater after not being used for awhile one should always check the relief valve on the hot water heater to make sure all air is purged. If no water comes out your tank is empty. DO NOT TURN THE HEATER ON. If this is the case.

machunt wrote:
i had it in for service and they checked water heater, and said it would not light on lp?

THAT^^^^ has nothing to do with whether or not water is in the WH Tank

What Brand/Model is it.....

Had it in for service and they said it wouldn't light on LP
BUT didn't find why/fix why?????

Great service.........horse pucky!!


LP is a simple 12VDC Circuit
Generic....
DC from fused source goes to LP the On/Off Switch
From switch it goes to
*DC Junction box on Suburban---then to the set of DC T-stats----then to circuit board----from circuit board to the gas valve/spark electrode

*DC goes to Circuit Board on Atwood....then to/thru thermals fuse and T-stat back to circuit board. Then goes to/thru ECO (high temp t-stat) and then to gas valve and Spark electrode


So follow the DC....simple

Post Brand/Model for specific info

Yup. That is what "hot water heaters" are for, to make the hot water hotter.
I thought everyone knew that.:B

Yep. Only time mine heats cold water is the very first time I turn it on. Each time after that it heats the hot water. So more often than not, it is a hot water heater. :B

spoon059 wrote:

wa8yxm wrote:

Well why would you want to heat HOT water?

Beat me to it. My water heater heats my COLD water.

Mine heats hot water. It comes on when the water temp hits about 120 and goes off when it hits about 140.

i had it in for service and they checked water heater, and said it would not light on lp?

YES...either Suburban or Atwood will fire (light off the porpane0 or electric element) if either are turned on W/O water in the WH Tank


If you drain it.....
Open the AC Circuit Breaker for the ELEMENT and remove Spark Electrode For SUBURBAN Model

Pull the 2A fuse on water heater circuit board for ATWOOD Model
*That stops AC & LP from functioning


If you turn on the Electric element W/O water ---it will burn up within a few minutes------have to replace element

If you turn on the LP it will fire and the Tank will get REAL hot REAL quick and the T-stat will OPEN stopping the firing
**If that happens let it cool naturally...do NOT fill with water until cooled down---you will damage the tank/tank lining


Water is only COLD upon initial filling.....reheat occurs when water temp gets to 110*F....that is still considered HOT
So get off the semantics Sheesh.