As a rule of thumb, when you are heating an area over 130 sq ft, you will likely use a 240v system(s). Why?:
• 120v systems provide more options for covering smaller areas; similarly, 240v systems provide more options for larger areas.
• As you will note on each flooring page, there is a product link where you can see the sizes available and their specifications which includes their respective volts and the amount of amps each size will draw.
• Whether you are using one or several heating systems, each specially designed thermostat that will power them can handle a load of 15 amps. Anything more than that and you will need to purchase an additional thermostat.
• The 240v products use less amperage which might help if you have limited space/breakers in your electrical panel.
• 240v systems can also be used as a primary heating source. Therefore, if that is your goal, be sure to consider purchasing a 240v system.
The bottom line: The more heating systems and thermostats you need to purchase will affect the total cost. If you tried to heat a large area with 120v systems, you would need more material and therefore more thermostats to power them. However, this voltage but would be ideal for smaller areas. CLICK HERE for cut & turn sizes and specs
1.2 What do I need to prepare for my project?
Before you order your heating system, there are a several things you can do in preparation:
• Draw a floor plan. It doesn’t have to be pretty or complicated. This step will allow you to visualize what you are trying to accomplish and will help you make a decision as to whether a loose wire or mat floor heating system will work best. Check out our design guide for some installations ideas. It will be important to make note of where you want to locate your thermostat since this will be the starting point for all of your heating systems.
• Measure the area that will be heated. When writing down your measurements, keep in mind that you will not be heating areas under permanent fixtures such as cabinets, bathtubs and toilets. To determine the square footage of your actual heated area, you will subtract the square footage of those areas from the total amount. When taking your measurements, factor in a 4” border from any walls and permanent fixtures. This information will help determine what size product(s) you will need. Please note that it is important that you note that the measurements for your project must only be for heated square feet. Measuring any other way will overestimate the amount of product needed and since the wire CANNOT be cut, this will result in a return of the product (which will delay your project) or a lengthier installation which will require a reconfiguration of how the product is installed, causing more labor time.
• Make sure your electrical panel will be able to handle additional amperage requirements. Each thermostat used to control your heating system will require 15amps. We recommend that you place your floor heating system on its own dedicated circuit. Check the main breaker in your electrical panel to see how many amps have been installed for your home. If there is no more room in your existing panel you can have a licensed electrician install a sub-panel. We suggest a 20A dedicated line for each Warmup system installed.
•Considering insulating your floor. While you can install your floor heating system directly over a concrete sub-floor, it is not advised. The concrete will absorb the heat first, before allowing it to rise to your tile, thus not allowing the product to be as energy efficient as it could be. A floor that could have heated up in minutes will now take hours. Warmup Insulation Boardshave been specially designed to allow for a thermal break. In other words, they radiate the heat upwards into your floor instead of into your sub-floor. The insulation boards are 2’ x 4’ and ¼” thick and will be installed throughout the room you will be heating.
The bottom line: Be sure that when you put in a request for products or for an order, you have measured the area that will be heated, excluding any permanent fixtures. If you have a floor plan and need assistance, please submit it via email (firstname.lastname@example.org) or fax (888-927-4721) so a representative can assist you with finding the best product for your project. Please be sure you include all necessary contact information (name, email address, phone number, location, etc.) so we can provide the best information possible. CLICK HERE to fill out our contact form.
1.3 Basic Installation
REMEMBER TO TEST THE RESISTANCE OF THE PRODUCT BEFORE, DURING AND AFTER INSTALLATION.
Step 1: Draw an installation plan showing the placement of the mats, floor sensor, and lead wire(s) to the thermostat. The Warmup Foil heating system should cover at least 80-90% of the floor area of your room to be used as a primary heat source.
Step 2: The Foil heaters may be installed over any subfloor that is approved for carpet or laminate applications, including plywood, backer board and concrete slabs. The Foil heaters CANNOT be installed directly over those surfaces, so a padding or underlayment as provided with your carpet or floating wood floor installation must be laid down first. Carefully inspect the subfloor and make sure it is clean, free of sharp edges, nails and any other materials that may damage the heating system.
Step 3: Unroll the Warmup Foil heating system completely flat and place it on top of the underlayment. Cut & Turn as needed per the instructions to give it the shape you need. Keep the heater at least 10” (25cm) from the edges of the room. When fitting more than one Warmup® foil heating mat in a room, the heating mats must not overlap, as overheating will result. Bring all lead wires back to the thermostat separately.
Step 4: The floor sensor is used for temperature regulation of the floor surface and to prevent the mats to exceed safe levels of heating. Tape the sensor down with tape, positioning it in-between element wires under the heating system. Run the sensor cable back to the thermostat.
When Installing Carpet or Floating Floors: With carpet, pay attention to tacking and pulling techniques when stretching the carpet at the edge of the room. Place a protective sleeve such as cardboard under hot iron seams you need to make. These tools have sharp crimps that can damage the heater. When laying laminates, use caution when butting the planks together with a hammer. In general, the Foil heating mats are pretty resistant and you can even steam-clean your carpets over the Foil. Use common sense when using tools and creating traffic during the installation.
Connecting Your Warmup Foil Heating System: Bring the lead(s) back to the thermostat and connect according to the manual. When setting up your 3IE thermostat, make sure to select the right flooring surface. This will guarantee your system will never exceed 82 or 84 degrees F depending on your floor choice. Warmup has tested the Foil system with many flooring manufacturers and has worked with them to determine safe operational levels. When installing over a concrete slab, talk to Warmup about heat loss to ensure you get the best results. CLICK HERE for installation instructions with images.
1.4 How to Troubleshoot Your Foil System
NOTE: All power to the units should be shut off at the breaker panel before checking any electrical connections.
• Is the heating system wired correctly? Have a licensed electrician check to make sure that the heating system is correctly connected to the thermostat and the thermostat to the electrical panel. Instructions for wiring came with the heating system and thermostat but can also be viewed online at www.warmup.com.
• Confirm there is enough power being supplied to operate your heating system. Warmup recommends that your floor heating system be placed on a dedicated circuit to power your heating system. Verify that the circuit can handle the amount of amperage your heating system requires. Contact your reseller/installer for details regarding your particular configuration.
• Check the resistance readings of your heating wires. To ensure that your floor heating system will function properly, always test the resistance of your wires with a digital multi-meter before, during and after installation prior to covering in thin-set or floor leveler. Use the information contained in pages 6 & 16 of the installation manual for details. If at any point during one of your tests the results do not match up with the numbers your Warmup manual indicates you should have, this indicates you have a short or a break in your wires. Warmup can provide your installer with the tools needed to perform a repair when possible.
• Was your heating system installed directly over a concrete sub-floor? If you installed your heating system over a concrete sub-floor and did not first install Warmup Insulation Boards, it could take over an hour for the floor to heat up since the sub-floor receives the heat first and the flooring second. In this instance you simply need to allow for more time.
• Make sure that the floor probe that came with the thermostat was installed and done so properly. Make sure that the probe is installed underneath the mat and evenly placed between a run, never to touch or cross. Installation procedures and thermostat settings can be reviewed in the installation manual and user guides that were provided, and can also be accessed on our website at www.warmup.com.
NEVER turn on your floor heating system unless it has been completely encapsulated in thinset or floor leveler and these compounds have had an opportunity to completely cure (at least 1 week) as directed in the installation manual that you received with your product. If you ignored this warning and activated your heating system without the wires being covered, you likely overheated them and will need replacements.