Different Load Baseboard Heaters In Parallel - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 03-25-2011, 11:19 AM   #1
Newbie
 
Join Date: Oct 2010
Posts: 27
Rewards Points: 25
Default

Different Load Baseboard Heaters in Parallel


I'm planning what baseboard heaters to buy for my 150 sq ft enclosed porch and have calculated the Wattage at 1500 Watts. Because of furniture layout, I'd prefer to install one 1000W and one 500W and have them controlled by a wall mounted 'double pole' thermostat wired in parallel (as in attached diagram).
Assuming 240V with a Honeywell TL7235 or similar thermostat.

Question: Is it safe to wire up two baseboard heaters with different wattage like this? Would the 500W heater get overloaded? Should I use two 750W heaters?

Thanks
Attached Thumbnails
Different Load Baseboard Heaters in Parallel-douible_pole_parallel.jpg  

Advertisement

pankaek is offline   Reply With Quote
Old 03-25-2011, 12:27 PM   #2
Electrical Contractor
 
jbfan's Avatar
 
Join Date: Jun 2004
Location: Newnan GA
Posts: 5,964
Rewards Points: 2,324
Default

Different Load Baseboard Heaters in Parallel


You are good to go like that.
The heaters will not overheat.

Advertisement

__________________
Yes I am a Pirate, 200 years too late. "Jimmy Buffett"
jbfan is offline   Reply With Quote
The Following User Says Thank You to jbfan For This Useful Post:
pankaek (03-25-2011)
Old 03-25-2011, 01:11 PM   #3
Newbie
 
Join Date: Oct 2010
Posts: 27
Rewards Points: 25
Default

Different Load Baseboard Heaters in Parallel


Any recommended Brands?

Was looking at the Cadet Softheat models.
pankaek is offline   Reply With Quote
Old 03-25-2011, 01:50 PM   #4
Electrical Contractor
 
jbfan's Avatar
 
Join Date: Jun 2004
Location: Newnan GA
Posts: 5,964
Rewards Points: 2,324
Default

Different Load Baseboard Heaters in Parallel


I have never installed baseboard heat, so I can't help on the brands.
__________________
Yes I am a Pirate, 200 years too late. "Jimmy Buffett"
jbfan is offline   Reply With Quote
Old 03-25-2011, 03:52 PM   #5
I=E/R
 
a7ecorsair's Avatar
 
Join Date: May 2010
Location: Minnesota
Posts: 2,052
Rewards Points: 1,000
Default

Different Load Baseboard Heaters in Parallel


My new house has many Cadet baseboard heaters. There are five 20 amp circuits supplying them with power. Some are on wall thermostats, some with baseboard mounted thermostats and some with definite purpose 24v control relays. I have mixed wattage on the circuits.
Your diagram is fine and you can join the wires in the end of one unit. One unit will provide more heat but it won't be overloaded. They will both get 240 volts and circuit current will be the combination of the two heaters.
a7ecorsair is offline   Reply With Quote
Reply


Thread Tools
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
Remove a big baseboard and add 2 smaller ones Metallo HVAC 6 01-29-2011 08:07 PM
Problem with 240V Elect Baseboard Heater JRHP Electrical 4 10-04-2010 10:30 AM
Baseboard Heat 80% Rule Question bltglt507 Electrical 1 11-06-2009 12:17 PM
Baseboard heaters ignoring thermostat marcus_1111 Electrical 9 08-06-2009 12:00 PM
Electric Radiant Baseboard and Built-in Bookshelves arobin HVAC 4 07-08-2009 06:42 PM




Top of Page | View New Posts