StickyMat System – DWM
Warmup's radiant electric floor Heated Mats, also called “StickyMat”, or DWM, is an electric underfloor heating mat system. Installers install our heated mats in regularly-shaped areas. In addition, users find our heated mats provide even heat distribution as they are manufactured with the utmost superior material. Specification Sheet Installation Manual

Choose a category
General FAQ & Guides
Browse guides and FAQs for General FAQ & Guides.
Installation
Browse guides and FAQs for Installation.
Miscellaneous questions
Browse guides and FAQs for Miscellaneous questions.
Preparing for your project
Browse guides and FAQs for Preparing for your project.
Installation
Browse guides and FAQs for Installation.
Troubleshooting
Browse guides and FAQs for Troubleshooting.
Wiring
Browse guides and FAQs for Wiring.
Choosing a System
Browse guides and FAQs for Choosing a System.
Questions & Answers
Select a category to filter the available help articles.
1 120V vs. 240V Floor Heating: Which Voltage Should You Choose?
Both deliver 13.1 W/sq ft. Learn when to choose 120V or 240V electric floor heating, how room size decides, and whether 110V is the same as 120V.
Learn more2 Electric Floor Heating Layout Considerations: Spacing, Clearances, & Installation Rules
Learn electric floor heating layout considerations, including cable spacing, wall and fixture clearances, furniture placement, and common installation mistakes to avoid.
Learn more3 Heating Cable vs. Heating Mat: Which Electric Floor Heating System Should You Choose?
Compare heating cable vs. heating mat for electric floor heating. Learn the differences in installation, cost, heat output, flexibility, and flooring compatibility to choose the right system.
Learn more4 How to Install Electric Underfloor Heating in a Shower
Learn everything you need to know about installing underfloor radiant heating in a shower floor.
Learn more5 Self-Leveler vs. Thinset for Electric Underfloor Heating
Learn when to use thinset or self-leveler for electric underfloor heating. Compare flooring compatibility, DCM-PRO requirements, primer, curing times, and installation best practices.
Learn more6 What Flooring Can Be Used with Underfloor Heating?
Learn which flooring works best with electric underfloor heating. Compare tile, vinyl, wood, laminate, carpet, and concrete installations, recommended heating systems, temperature limits, and installation requirements.
Learn more7 Can Radiant Floor Heating Be a Primary Heat Source? Heat Loss, BTUs, and Sizing Guide
Yes, radiant heat can be used as a primary heat source. Learn how to calculate heat loss, convert watts to BTUs, and confirm radiant floor heating can heat your room on its own.
Learn more8 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…
Learn more9 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.
Learn more10 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…
Learn more11 Can the cold tail lead of your Warmup indoor heating system be extended?
This page explains how to extend your lead wire or connect your heater to a thermostat in a remote location.
Learn more12 Floor Probe Installation Instructions
The thermostats come with a 9’ sensor cable to detect the temperature under the floor finish. The end of the probe wire contains a capped sensor that should be evenly centered between two heating cables…
Learn more13 How thick is the heated floor mat?
If you are looking for an underfloor heating solution with a low-profile you'll want to consider the heated floor mat by Warmup.
Learn more14 How do Floor Heating Systems Work?
Learn more about the basics of how underfloor heating works.
Learn more15 Electric Floor Heating Mat Installation Video
Warmup electric floor heating mats are designed to make installation easy. Take a peek at our brief installation video to see for yourself. Click here to view it. To view a demonstration, watch our video…
Learn more16 How do I check if the cable is working ?
The only way to see if the cable is going to work and is not damaged is to use an ohmmeter to check the resistance between the heating conductors matches what it should be in…
Learn more17 How do I install the factory joint which is thicker than the heater wire?
If it is not installed in the floor, the joint may give and your system will no longer work. Not only will your warranty be voided but you will have to repair the joint and…
Learn more18 Installation Tips for the DWM Heating Mat System
You will want to review these electric heating mat system installation tips before you begin your electric floor heating installation project. Tips such as how the factory joint is positioned to how to extend the…
Learn more19 Will the Electric Floor Heating System Work Without the Floor Sensor Probe?
While you can operate your floor heating system without the floor sensor probe it is better to have it installed. Click "Read More" for detailed information.
Learn more20 How long after flooring installation should we wait to use the heat?
Are you wondering how long after installation you have to wait to begin using your floor heating system? Learn all about wait time in this post.
Learn more21 How do I register a product warranty?
If you are finalizing a Warmup installation it is almost time to register your warranty! Find the link here to the warranty registration page.
Learn more22 How do I test my heating cable(s)?
Warmup recommends testing your underfloor heating cables before, during, and after installation. Follow along with this post for support.
Learn more23 Can the lead of your Warmup heating system be trimmed?
This page will give you pointers about trimming your cold lead to fit easier in the conduit and electrical box.
Learn more24 How to identify and repair a broken underfloor heating cable.
Learn how to repair a damaged heating mat or loose wire system with our step-by-step guide. This article provides detailed instructions to help you restore your underfloor heating system quickly and safely.
Learn more25 Can I have a technician come to my home?
Are you looking for troubleshooting support at your home? We are here to help online and by phone 24 hours, 7 days a week.
Learn more26 How does the infrared thermal camera work?
Are you experiencing uncertainty with your underfloor heating and looking to get answers? An infrared thermal camera may be the tool you need.
Learn more27 How to check the resistance readings of your electric floor heating system.
To ensure that the floor heating system will function properly, always check the resistance readings of the wires with a digital multimeter before, during, and after installation. Continue reading to learn how.
Learn moreStill need help?
Our support team is here to help you.