Upgrading to a 240v wall heater.

Reply

  #1  
Old 03-02-14, 01:22 PM
Member
Thread Starter
Join Date: Mar 2014
Posts: 3
Upgrading to a 240v wall heater.

Hey guys,

I'd really like to get the extra heat from a 240v/2000w wall heater, and since my old 120v wall heater just died, i was thinking about upgrading. Im assuming there is more to it than just replacing the heater. How much of a headache is it have this heater draw 240v from somewhere that has 120v? Should i just get the 120v/1500w heater to save myself the trouble?
 
Sponsored Links
  #2  
Old 03-02-14, 01:29 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 46,277
Welcome to the forums.

First thing is to check the wattage on the existing heater.
Second.... is that heater on its own dedicated circuit.... if yes..... what size breaker ?

You need to make sure the heater is on its own circuit before increasing it's size.
 
  #3  
Old 03-02-14, 01:37 PM
Member
Thread Starter
Join Date: Mar 2014
Posts: 3
The old one is 750w. It shares a breaker with two other heaters of the same size. The other two are spare rooms that are hardly used. So if need be, i can remove them and by small space heaters if/when they are needed.

The breaker is 20 amp. The heater im looking at is 2000w at 8.3 amps.
 

Last edited by Vern Meyer; 03-02-14 at 01:54 PM.
  #4  
Old 03-02-14, 02:02 PM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 12,288
If the circuit can handle it I would just get a 1500 watt 120 heater. What is the wattage of all the heaters on that circuit?
 
  #5  
Old 03-02-14, 02:21 PM
Member
Thread Starter
Join Date: Mar 2014
Posts: 3
three 750w heaters, well, two now that one is dead.

Unsure if this changes anything, but i just took the bad heater out, and there is two power cables to it. each one of the cables hot, neutral, and ground have been spliced to the others. I could take a picture if that would help.
 
  #6  
Old 03-02-14, 04:20 PM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 12,288
Three heaters at 750 watts each gives you 18.75 amps on your 20 amp circuit. Changing the bad heater to a 1500/2000 watt will not work with the current wiring. You could increase the size of the heater only if you change all of them that is on that circuit. All of them would need to be 240 volt heaters otherwise you will burn up the other two. I do not recommend removing the other two and using space heaters due to the fire hazard.

In order to change the wiring to 240 volts you will need another space in your electrical panel for the two pole breaker.

there is two power cables to it. each one of the cables hot, neutral, and ground have been spliced to the others.
Sounds typical. I'm guessing the thermostats are installed on the heaters?
 
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


Thread Tools
Search this Thread
Display Modes