Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 11-28-2011, 01:45 PM   #61
Member
 
Kzinti2's Avatar
 
Join Date: Oct 2010
Location: Columbus, OH
Posts: 53
Re: Anyone using a tankless water heater?

Quote:
Originally Posted by Ford_6L_E350
There is no such thing as A/hour or amps/minute...
Mike
A good point. The time component of power usage is often implicit and in my effort to be more explicit I was lead astray by the algebra in regards to units. This lead to my usage of Watts/hour and Amps/hour, etc. instead of Watt-hours/hour and Amp-hours/hour.

Recasting my definitions more properly leads to:
SP2412 2400Wh 12V-222Ah/hour or 3.7 Ah/minute from your battery (18.5 Ah for 5 min. shower)
SP3012 3000Wh 12V-278Ah/hour or 4.6 Ah/minute from your battery (23 Ah for 5 min. shower)
SP3512 3500Wh 12V-333Ah/hour or 5.6 Ah/minute from your battery (28 Ah for 5 min. shower)

Since the Eemax demand heaters noted here are 120V units, they would run off of the van's 120 volt AC system whether supplied by shore power, generator or appropriately sized (& wired) inverter pulling from the house batteries.

__________________
2004 SMB w/Penthouse - Ford 2wd RB 6.0 - new to us in 2011
Kzinti2 is offline   Reply With Quote
Reply


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

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 07:52 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.