Preparing for your project

Can I install two thermostats on a single 240V circuit, with one controlling a bathroom mat and the other controlling a separate two mats?


No, unfortunately you cannot use one 240V circuit to supply power to ALL controls / heating mats. Since the thermostats have GFCI protection built-in, those areas / heating mats will need to be supplied with Non-GFCI Protected Circuits. 

How fast will my snow-melting system heat up?


A snow-melting system is most efficient when the slab is preheated. As a rule of thumb, a snow-melting system should start preheating for 1 -2 hours before the arrival of snow/ice.

How many relays can a single thermostat control?


If you are planning for a large project, Warmup recommends limiting the number of relays controlled by a single thermostats to 5.

Can sheet vinyl be used on top electric under floor heat?


Sheet vinyl is a great solution over an underfloor heating system as long as the vinyl does not have insulating properties greater than R1.5.

What type of thinset should I use with my Warmup system?


We highly recommend the use of polymer-modified adhesives, also known as “modified thinset.” Since the addition of the polymer compound creates a more dense bonding reaction during the curing process, this ultimately improves heat distribution. Acceptable tile adhesives include modified polymer self-leveler or thinset.

What do I need to prepare for my electric floor heating project?


Before you order your floor heating system, there are a several things you can do in preparation. Read this before your start!

Installing the Sensor Probe


It is vital that the floor heating thermostat’s floor probe was not only installed but done so the right way.  Click “Read More” for details. Make sure that the sensor probe is installed underneath the mat and placed equidistant BETWEEN two runs of heater wire.

How Long will my Electric Floor Heating System Take to Heat Up?


It depends on a lot of factors, but a classic installation over ¾” plywood with NADWM mats would take about 30 minutes to heat from 60F to 80F. Click “Read More” for details. 

Do I need to provide a transformer to wire in 3-phase?


To wire in 3-phase you need 3-phase supply power. Click “Read More” for details.

Do I choose cable or mat electric floor heating systems?


This page explains the difference of the mat and loose cable options but ultimately either the cable or mat option will give you the design freedom you are looking for.

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