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Convert 120V to 240V outlets

Posted on 10/30/20 at 10:40 am
Posted by Neauxla
New Orleans
Member since Feb 2008
34461 posts
Posted on 10/30/20 at 10:40 am
Anyone know how hard it will be to convert 120V to 240V outlets? I have some outlets on my back deck that I want to use to power some space heaters but the highest KW I can go on a 110V outlet is 1500KW which doesn't do jack. Is it as simple as changing out something in the fuse panel and the outlets or is running all new wiring?
This post was edited on 10/30/20 at 10:41 am
Posted by kengel2
Team Gun
Member since Mar 2004
33713 posts
Posted on 10/30/20 at 11:01 am to
What are the specs on the 240V space heaters?

Will probably need new wiring.
Posted by REB BEER
Laffy Yet
Member since Dec 2010
18031 posts
Posted on 10/30/20 at 11:02 am to
It actually doesn't look very difficult. Just use your neutral as another hot wire and connect to a 2 pole breaker.

Convert 120 to 240.
Posted by weadjust
Member since Aug 2012
15742 posts
Posted on 10/30/20 at 11:03 am to
quote:

it as simple as changing out something in the fuse panel and the outlets or is running all new wiring?


All of the above
Posted by slacker130
Your mom
Member since Jul 2010
8965 posts
Posted on 10/30/20 at 11:05 am to
How many amps? Most likely new wiring.
Posted by slacker00
Member since Mar 2011
593 posts
Posted on 10/30/20 at 11:09 am to
Got something against propane? Even if you bump up to 240V you aren't gaining as much as you would if you went away from electric.
Posted by LSUtigerME
Walker, LA
Member since Oct 2012
3955 posts
Posted on 10/30/20 at 11:16 am to
Money better spent on propane heaters, especially for an outdoor space.

Converting correctly would involve new breaker in panel (which may require moving other breakers), new wiring pulled, and possibly some modifications to the wall to fit the new receptacles.
Posted by CoachChappy
Member since May 2013
34197 posts
Posted on 10/30/20 at 11:25 am to
quote:

Anyone know how hard it will be to convert 120V to 240V outlets?


If you are asking, it’s probably over your head.
Posted by Neauxla
New Orleans
Member since Feb 2008
34461 posts
Posted on 10/30/20 at 11:28 am to
quote:

Money better spent on propane heaters, especially for an outdoor space.

Converting correctly would involve new breaker in panel (which may require moving other breakers), new wiring pulled, and possibly some modifications to the wall to fit the new receptacles.

This is for a covered back porch with 3 walls. I don't want a bulky propane space heater if I can mount some electric ones to the rafters. Guess I should have run gas lines for a heater.
Posted by footballdude
BR
Member since Sep 2010
1114 posts
Posted on 10/30/20 at 12:05 pm to
delete
This post was edited on 1/11/21 at 12:55 pm
Posted by baldona
Florida
Member since Feb 2016
24165 posts
Posted on 10/30/20 at 1:00 pm to
Have you tried out the 110V ones? I know they seem small but from my experience you don't want much heat somewhere like a deck. A lot of those heaters are sooo hot you can't get close to them.
Posted by Drop4Loss
Birds Eye Of Deaf Valley
Member since Oct 2007
3967 posts
Posted on 10/30/20 at 1:10 pm to
No way no how with propane.

shite you can burn a tank a nite.......... dats $20 + a nite.

No way, ask me how I ................

Posted by baldona
Florida
Member since Feb 2016
24165 posts
Posted on 10/30/20 at 1:21 pm to
quote:

No way no how with propane.

shite you can burn a tank a nite.......... dats $20 + a nite.

No way, ask me how I .


This isn't likely at all though. Most people are only going to have them running for 2-3 hours at a time, for a football game or something like that. Sure if you blast it on high all day it'll run out.
Posted by Neauxla
New Orleans
Member since Feb 2008
34461 posts
Posted on 10/30/20 at 1:26 pm to
Yeah they don't put off heat if you're more than 4 feet away
Posted by baldona
Florida
Member since Feb 2016
24165 posts
Posted on 10/30/20 at 1:34 pm to
Its a covered porch thought right? Do you have a ceiling fan out there? I'm assuming you don't want it to be so warm you don't need a jacket just comfortable right? I'd think just a little heat with a ceiling fan on a covered porch is plenty?

Personally I think Id test out some small portable heaters first unless you've done this already?

People like a LOT of heat at first but heaters get hot as shite and uncomfortable pretty quickly.

ETA: I'm just saying on a covered porch you don't need nearly as much heat as you think if you have a way to move it around. Look at your HVAC system in a house, not much is needed to keep the entire thing warm. Given that's insulated and enclosed. But still.
This post was edited on 10/30/20 at 1:36 pm
Posted by lnomm34
Louisiana
Member since Oct 2009
12702 posts
Posted on 10/30/20 at 1:45 pm to
(no message)
This post was edited on 2/4/25 at 9:00 am
Posted by Neauxla
New Orleans
Member since Feb 2008
34461 posts
Posted on 10/30/20 at 3:01 pm to
highest 110V goes on heaters is 1500W

It is a covered porch. I got a 120V 1500W space heater to test out and I know if I got 2 more them, it wouldn't do diddly.

I'm looking into having a electrician come run 2 240v outlets and getting these now:

LINK
Posted by lnomm34
Louisiana
Member since Oct 2009
12702 posts
Posted on 10/30/20 at 3:02 pm to
(no message)
This post was edited on 2/4/25 at 8:59 am
Posted by Neauxla
New Orleans
Member since Feb 2008
34461 posts
Posted on 10/30/20 at 3:05 pm to
It's only 1000x more
Posted by diat150
Louisiana
Member since Jun 2005
47699 posts
Posted on 10/30/20 at 3:14 pm to
i would get a portable kerosene forced air heater. it will heat that space in no time then you can turn it off.
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