Can Casita 110v outlet power a 120v ceramic heater? - Page 2 - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-15-2015, 04:45 PM   #15
Senior Member
 
Name: None
Trailer: None
None
Posts: 2,727
Quote:
Originally Posted by WaltP View Post
Just a little addition to Steve's comment. The commercial receptacles he refers to are rated at 20 amps instead of 15 and can be recognized by the "lazy T" hole for the hot terminal.

Walt
Commercial grade receptacles are available in both 15 or 20 amp ratings.
The T slot on a 20 amp-120 VAC receptacle is on the left or neutral side of the receptacle.
__________________

__________________
steve dunham is offline   Reply With Quote
Old 11-15-2015, 05:11 PM   #16
Senior Member
 
Name: Lee
Trailer: Casita
Texas
Posts: 243
Registry
You can buy an inexpensive multi meter and check to see what your supply voltage is at the receptacle but more than likely the voltage will be 120 volts. If it was me I would consider getting a couple of heat lamps and the brooders lamp they screw into. The red bulbs are 250 watts apiece so two of them would only be 500 watts or 4.2 amps at 120 volts instead of 12.5 amps or 1500 watts at 120 volts. Tractor Supply Co. - Enjoy searching: heat lamps
__________________

__________________
Lee
Captleemo is offline   Reply With Quote
Old 11-15-2015, 05:47 PM   #17
Junior Member
 
Name: Tony
Trailer: In the Market
Texas
Posts: 3
Heater

1500 watts divided by 120 volts = 12.5 amps

If the circuit breaker is 15 amps and not much else on the same circuit then yes.
__________________
TCMac is offline   Reply With Quote
Old 11-15-2015, 07:22 PM   #18
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,306
Registry
110, 115, 120? Can be confusing. Just remember these number are approximate not absolute. Also you can be fooled if you try to do the math with a wrong variable. And if you try to do Ohm's law according to manufacturer's specifications you could miss.

All that said, if the power (watts) of a heater is in fact 1500 watts with a voltage of 100 Volts AC RMS you will have a current of 15 Amps RMS. It gets rather complicated.

For trailer use I don't think it would be problem, depending on how your trailer is wired. If it wired like mine every 120 volt outlet has it own 15 amp breaker.

A 15 amp breaker isn't going to trip at exactly 15 amps. Again most these number are close but not exact.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is offline   Reply With Quote
Old 11-15-2015, 07:58 PM   #19
Senior Member
 
WaltP's Avatar
 
Name: Walter
Trailer: 2017 Escape 17B
SW Virginia
Posts: 1,130
Most small, 1500 watt heaters have a low range of about 8-900 watts that'll draw a lot less current and I've never had to use mine on the high range anyway. The volume of space in our small trailers shouldn't need it. If it ever got cold enough that I felt my heater was heating too slow on low range, I'd just turn on the furnace for a short time to speed it up. So far, never happened. Even here.

Walt
Attached Thumbnails
IMG_0505 (Small).JPG  
__________________
WaltP is offline   Reply With Quote
Old 11-16-2015, 05:37 AM   #20
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,055
Quote:
Originally Posted by steve dunham View Post
.........One problem you may encounter is that Casita uses 15 amp residential grade receptacles . Residential grade receptacles when subject to a continuous load that exceeds 80% of their amp rating have a tendancy to heat and self destruct.
Wow. I have to say I'm surprised that the testing agencies, especially the ones funded by the insurance companies, allow this. I guess everything has mouse print these days. Raz,
__________________
Raz is offline   Reply With Quote
Old 11-16-2015, 09:05 AM   #21
Senior Member
 
Name: None
Trailer: None
None
Posts: 2,727
Quote:
Originally Posted by P. Raz View Post
Wow. I have to say I'm surprised that the testing agencies, especially the ones funded by the insurance companies, allow this. I guess everything has mouse print these days. Raz,
Raz , When I was wiring houses ,we would buy receptacles in quanities of 10,000 at
27 cents each. They work fine in bedrooms and living rooms where the loads were small.
They did not hold up as well in kitchens where high wattage appliances were being used and were repeatedly pluged in and then un plugged. In our area , electric heat is presumed to be a continuous load due to the design temp of -30 deg F. When a cord connected heater runs continuously on high both the cord cap and the receptacle will get warm and over a period of time the receptacle looses its contact tension. For example hospital grade receptacle are tested for contact tension by plugging an 8lb weight into the face of the receptacle , turning the receptacle face down and the weight must stay in place for a stated time period. Hospital grade receptacles cost about $6 to $8 each. The same problem occurs with residential grade switches. If you load the switch above 80% of its rating and the switch is operated frequently ,especially on inductive loads ,the switch will not last very long. The theory that you get what you pay for holds true in electrical devices.
__________________
steve dunham is offline   Reply With Quote
Old 11-16-2015, 11:24 AM   #22
Senior Member
 
WaltP's Avatar
 
Name: Walter
Trailer: 2017 Escape 17B
SW Virginia
Posts: 1,130
Steve
Thanks for this great education on electric stuff. More than I knew for sure and very useful.

Walt
__________________
WaltP is offline   Reply With Quote
Old 11-16-2015, 12:45 PM   #23
Senior Member
 
Name: Darwin
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
Posts: 3,029
Send a message via Yahoo to Darwin Maring
Just replace your receptacle with a 20 Amp receptacle. They don't cost that much. Still use the 15 Amp circuit breaker.
__________________
Darwin Maring is offline   Reply With Quote
Old 11-16-2015, 01:08 PM   #24
Senior Member
 
WaltP's Avatar
 
Name: Walter
Trailer: 2017 Escape 17B
SW Virginia
Posts: 1,130
Exactly.
__________________
WaltP is offline   Reply With Quote
Old 11-16-2015, 01:31 PM   #25
Senior Member
 
Joe MacDonald's Avatar
 
Trailer: Trillium
Ontario
Posts: 753
if you dont buy the commercial grade, it still won't last. the t blade designates a 20 amp receptacle , in Ontario, that is what is used for kitchen counters, if close to a sink, then it is also a ground fault receptacle. this replaces the standard 15 amp split plug we used to use. without getting into heavy details, i have used a ceramic heater in my trailer since I got the trailer. my trailer plug only has a 15 amp standard end on it. i do not recall ever tripping a breaker.

Joe
__________________
Joe MacDonald is offline   Reply With Quote
Old 11-17-2015, 06:24 AM   #26
Senior Member
 
Name: Joe
Trailer: 1999 Casita 17' SD
Ohio
Posts: 552
If anyone cares the commercially supplied AC voltages in the US were originally 110/220 volts and raised in steps to the current 120/240.
(it goes back to Edison and his 100 VDC raised to 110 to make up for transmission loss)

This allows more current, amps, to be delivered over the same transmission lines because when the voltage is raised the amps goes down for the same wattage thus saving lots of $$'s in facilities.
It was done in steps to coincide with lower voltage appliances being replaced with new ones

But old habits are hard to break and many/some still refer to the supplied voltages as "110/220" volts

Joe
__________________
Joe Romas is offline   Reply With Quote
Old 11-18-2015, 10:42 AM   #27
Senior Member
 
Name: None
Trailer: None
None
Posts: 2,727
[QUOTE=Darwin Maring;558846]Just replace your receptacle with a 20 Amp receptacle. They don't cost that much. Still use the 15 Amp circuit breaker.[/)]

Refer to Table 210.21((3 . It is a violation of the NEC to install a 20 amp receptacle on a 15
amp circuit. The code allows both 15 & 20 amp receptacles to be installed on 20 amp branch circuits if the circuit has multiple receptacles. If a 20 amp circuit feeds a single receptacle ,then the receptacle must be rated for 20 amps.
Table 210(((2) states that the maximum load for a cord connected appliance on a 15 amp
receptacle is 12 amps or 1440 watts . A 1500 watt heater exceeds 12 amps
__________________
steve dunham is offline   Reply With Quote
Old 11-18-2015, 11:23 AM   #28
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,055
Quote:
Originally Posted by steve dunham View Post
Refer to Table 210.21((3 . It is a violation of the NEC to install a 20 amp receptacle on a 15
amp circuit. The code allows both 15 & 20 amp receptacles to be installed on 20 amp branch circuits if the circuit has multiple receptacles. If a 20 amp circuit feeds a single receptacle ,then the receptacle must be rated for 20 amps.
Table 210(((2) states that the maximum load for a cord connected appliance on a 15 amp
receptacle is 12 amps or 1440 watts . A 1500 watt heater exceeds 12 amps
This sounds more like something passed by Congress. Raz
__________________

__________________
Raz is offline   Reply With Quote
Reply

Tags
casita


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
Does adding multi-outlet to 12v outlet diminish output? Kudzu Asheville Electrical | Charging, Systems, Solar and Generators 8 05-08-2014 06:05 AM
Source for a 110v exterior outlet FlyboyTJ Modifications, Alterations and Updates 49 10-20-2012 07:38 PM
Ceramic Heater Safety melissab General Chat 24 11-08-2011 09:12 PM
Ceramic heater recommendations? Cam A Care and Feeding of Molded Fiberglass Trailers 16 04-19-2006 04:38 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.