philly0128
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The baseboard type heat works off of line voltage (120v) not low voltage like a regular furnace or AC. You need to use both reds to the red lead and both blacks to the black lead!
I just read the installation instructions for that thermostat and I believe you may not be able to use the one thermostat for both heaters! Ask Lux Customer service
http://www.luxproducts.com/contact_us.htm before you hook up both units to the one stat!
16x80