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

Go Back   Sportsmobile Forum > Search Forums
Reload this Page Search Results
Click Here to Login


Page 1 of 2 1 2
Showing results 1 to 25 of 33
Search took 0.00 seconds. Search: Posts Made By: boywonder
Forum: Electrical and Electronics 11-03-2016, 09:32 PM
Replies: 85
Views: 32,816
Posted By boywonder
Replacement option for what?

Replacement option for what?
Forum: Electrical and Electronics 05-28-2016, 08:31 PM
Replies: 85
Views: 32,816
Posted By boywonder
Thanks!.......that's why I machined little oval...

Thanks!.......that's why I machined little oval recesses for each switch.......snug as a bug in a rug........
Forum: Electrical and Electronics 05-28-2016, 09:49 AM
Replies: 85
Views: 32,816
Posted By boywonder
More water heater related stuff.... I...

More water heater related stuff....

I recently picked up a Xantrex Linkpro battery monitor from another member here (thanks SteveW!!).

I have been experimenting with using it to heat water in...
Forum: Electrical and Electronics 05-02-2016, 02:01 PM
Replies: 85
Views: 32,816
Posted By boywonder
In an effort to assist member 1der with his solar...

In an effort to assist member 1der with his solar and water heating sizing, I did a simple (and extremely boring) experiment with my water heater yesterday....and also because I was just curious.......
Forum: Electrical and Electronics 02-24-2015, 09:33 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

....thinking about the BTU content of a gallon of gas on the train ride this morning.....let's compare 200 amp-hrs of battery capacity to a gallon of gasoline....just for fun.

Applying ohm's law...
Forum: Electrical and Electronics 02-24-2015, 08:45 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Well, it it were perfectly insulated (or a thermos, almost perfect...) once it was heated up is stays hot forever.....so heat it up when driving or plugged in then use it when you need it.....kind of...
Forum: Electrical and Electronics 02-23-2015, 06:17 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Yes, roughly........if we assume 25 amps through the element for an hour, and if it takes an hour to heat the water and tank based on the rough calc above, then 25 amps went to raising the...
Forum: Electrical and Electronics 02-23-2015, 01:48 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

E350: 99.9% of my camping does not involve shore power so I may be partially screwed anyway, although maybe not......one test is worth a thousand expert opinions........


Just for fun, the Home...
Forum: Electrical and Electronics 02-23-2015, 08:09 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Ray:

1. Certainly, the mass of the steel vessel has to be heated as well (I did not include this in the earlier ballpark calc), and steel has a fairly high specific heat capacity. For fun I...
Forum: Electrical and Electronics 02-22-2015, 09:27 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

E350: Yes, you got the math right!

A few notes about the heat losses....

I had the thermostat cover off the whole time with a bare section of the tank exposed, ie no insulation. The factory...
Forum: Electrical and Electronics 02-22-2015, 08:29 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

...for readers with a keen eye (or for those who actually read the earlier posts), one will notice that my adiabatic (no heat loss) calculations from a few weeks ago were almost exactly 1/2 of...
Forum: Electrical and Electronics 02-22-2015, 08:19 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

OK, I finally got the 12V setup tested. I ordered a few incorrect fittings and I'm still sorting out the final configuration, but I managed to get a basic setup up and wobbling.

The test setup...
Forum: Electrical and Electronics 02-06-2015, 07:23 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

I got a little more accomplished on the water heater today.

I got the 12V element installed and removed the 110V power cord and installed 10AWG wires. I also wired in a relay in the van to...
Forum: Electrical and Electronics 01-30-2015, 08:26 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Chance: We are disagreeing with you because modifying water heaters can be very dangerous business. The fact that you are downplaying the potential things that can go wrong is worrisome to me.

I...
Forum: Electrical and Electronics 01-28-2015, 08:23 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

well.......it just occurred to me why the thermostat has 2 sections..........

To meet both boiler code (USA) and IEC (Euro) requirements, the water heater must have an overtemp cutoff and that is...
Forum: Electrical and Electronics 01-27-2015, 09:28 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

E350: Yes the red button is the overtemp cut-out. I'm still not quite clear why the thermostat has two sections, perhaps another layer of redundant safety features......

Pretty much all...
Forum: Electrical and Electronics 01-27-2015, 08:32 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

.....OK, back on topic.....

JWA's comments about the thermostat prompted me to investigate further.....the thermostat is rated for 40A for 120-277VAC service and 25A/480VAC service, so we should...
Forum: Electrical and Electronics 01-27-2015, 08:20 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

...and a couple of water heater explosions....


https://www.nachi.org/forum/f13/water-he ... ion-31722/ (https://www.nachi.org/forum/f13/water-heater-exposion-my-way-afternoons-inspection-31722/)
...
Forum: Electrical and Electronics 01-27-2015, 08:03 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Perhaps it's semantics........you say rupture I say explode.....violently.....

https://inspectapedia.com/plumbing/BLEVE_Explosions.htm

Here are a few pics of the aftermath of boiler...
Forum: Electrical and Electronics 01-27-2015, 06:15 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

No I'm not removing the temperature/pressure relief valve and I don't think technodave is either, and PLEASE DO NOT EVER REMOVE A T/P VALVE FROM IT'S LOCATION ON A WATER HEATER.

Installing it in...
Forum: Electrical and Electronics 01-27-2015, 09:11 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Correct, watts is watts.......although circuit breakers are thermal devices and rely on current to pop open. Current flowing through a wire (or a circuit breaker) causes resistive heating which...
Forum: Electrical and Electronics 01-27-2015, 09:04 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

a few comments about water heater safety.....

In the old days water heaters and boilers would routinely explode leveling city blocks causing injury and death.

For this reason, a long time ago,...
Forum: Electrical and Electronics 01-27-2015, 08:30 AM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

just now noticed this---hoping its not too long after the fact.........

Devices originally designed for 120 VAC don't necessarily work safely when 12 VDC is applied. If this t'stat will be...
Forum: Electrical and Electronics 01-26-2015, 09:09 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Thanks Dave for the clarification! I have ohms wheels on taped to all of my computer monitors both at home and at work.

.....and for the non-electrical types, daveb's abbreviation above is for...
Forum: Electrical and Electronics 01-26-2015, 09:02 PM
Replies: 85
Views: 32,816
Posted By boywonder
Re: Dual Voltage (12v dc / 120v ac) Small Electric Water Hea

Yes, they sure can.......

To clarify, my setup will be 12V only (or 110V only right out of the box).....technoDave's dual voltage setup is brilliant but I don't really camp where shore power is...
Showing results 1 to 25 of 33
Page 1 of 2 1 2

 
Forum Jump
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 06:29 PM.

Contact Us - Sportsmobile Forum - Archive - Community Rules - Terms of Service - Privacy - Accessibility - RVLife - Top

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