Preparing for your project

Conduit Requirements when Installing your Warmup System


We recommend using a conduit 1/2 conduit for one lead or a 3/4″ conduit if connecting two systems to one thermostat. In addition, we recommend a separate 1/2″ conduit for the floor sensor.

Does Warmup Underfloor Heating Comply with Title 24?


The California Title 24 Building Energy Efficiency Standards are designed to ensure new and existing buildings achieve energy efficiency and preserve outdoor and indoor environmental quality. We have included below useful information regarding underfloor heating and Title 24. To ensure compliance, please consult with a building professional.

How do I Mount my ETO2 Controller?


So either the installer puts a DIN rail on the wall or cabinet, or they can utilize the four mounting holes in the corners of the housing and screw it to a surface.

Can I Install the Relay-25 in the Same Electrical Box with my Thermostat?


Warmup strongly recommends that the relay is installed in a separate single gang box to avoid overheating and interference of other cables. Check with your electrician and refer to your local code for specific installation requirements.

Is GFCI (Ground Fault Circuit Interrupter) Required for Bathrooms?


Thermostats with an internal GFCI including the Warmup 4iE and WUDG will fulfill this requirement. If a non-GFCI thermostat like our Tempo thermostat is being used, a GFCI breaker will be required. Consult with your local electrician to make sure your installation is properly protected and meets National and Local Electrical Code.

Can I Install my Floor Heat over an Existing Sheet of Vinyl Floor?


If using a DCM-PRO membrane, scrape/scratch and prime the vinyl to ensure bonding with a highly modified thinset and install the membrane directly to it.

Can you heat under glass mosaic tiles ?


Yes you can heat under glass tiles. The thin-set holds the heat. The glass (silicon) isn’t a very good conductor but the thin-set does the work.

Conduit requirements when installing a Warmup system


We recommend using a conduit 1/2 conduit for one lead or a 3/4″ conduit if connecting two systems to one thermostat. In addition, we recommend a separate 1/2″ conduit for the floor sensor.

Mounting 4iE Thermostat (or 3iE) with Std. Back Box/Mud Ring


In order to properly mount your 4iE thermostat, you will need a back-box as well as a mud-ring. Warmup can recommend compatible items.