Can I connect one Warmup heater to another in series?
Warmup electric floor heating systems do not connect to each other in series.
To connect one system to the other in series is known as “daisy chaining”. Each floor heating system connects individually to the operating floor heating thermostat, with the total amount of amperage of the connected heated systems not exceeding 15 amps.
Note: More than two leads running to the thermostat require 3/4″ conduit. Be sure to use a junction for installations which exceed 3 heaters.
If your installation requires more than 15 amps, you will need to purchase a relay to accommodate the additional amperage. Please refer to the installation manual for further details regarding the installation of your Warmup system.