Plug-in ready, weather-resistant, thermostatic controller. Uniquely designed to fit all exterior outlets, ThermaCord™ turns on at 37º and off at 50º – saving you money through reduced energy bills.
Use it anywhere you want automatic, trustworthy temperature control – from home to farm applications, including your pumphouse, greenhouse, chicken coop, barn, and especially in your roof and gutters with Heat Tape PRO.
$34.95
5272 in stock
Even though Self-regulating Heat Tape varies its power consumption based on ambient temperatures, it’s still using energy whenever it’s plugged in. ThermaCord provides an automatic On/Off switch for your heat tape controlled by the temperature, saving you money by eliminating unnecessary power use.
Control the power supply to your Heat Tape Pro or any plug-in device with this convenient temperature controlled power cord. ThermaCord fits into any 120v outdoor outlet.
“Heat Tape Pro did exactly what I needed it to do. Now I don’t have to worry about water leaking into my house, because I can tell when it’s working by the little light on the end of the cable.”
-Michael P.
Amazon Customer
“This heat tape works as advertised. It was delivered to me fast, and although it’s a little complicated to install, the documentation is good..”
-Shaun D.
Radiant Solutions Customer
“I install thousands of feet of heat tape every year. This is the best stuff I’ve found to protect my customers homes and give them the piece of mind they need.”
-Patrick B.
Professional Installer
ThermaCord is a smart power cord with a built-in thermostat that automatically turns roof de-icing cables on and off based on temperature. It powers on at 37°F to prevent freezing and shuts off at 50°F to save energy. This keeps your heat tape from running 24/7 when it isn’t needed, lowering your electric bill while keeping your home protected.
Yes. ThermaCord works with any plug-in roof de-icing cable or pipe heat cable that plugs into a standard 120V outlet and draws 1500 watts or less. It’s a perfect match for Heat Tape Pro, but also works with most heat tape brands you’ll find at hardware stores.
Savings vary by climate and electricity rates, but in most cold regions ThermaCord cuts energy use by up to 30-50%, depending on outdoor temperature fluctuations and the duration it’s used. For many homeowners, it pays for itself in the first winter season and then keeps saving money year after year.
No. ThermaCord is pre-programmed to turn on at 37°F and off at 50°F. These settings are based on decades of ice dam prevention experience to balance maximum protection with maximum energy savings. The fixed settings mean there’s nothing for you to adjust or program.
Absolutely. ThermaCord is outdoor rated, weather resistant, and built to handle snow, rain, and subzero temperatures. The 16-inch cord length gives flexibility for outlet placement while keeping the connection protected.
You could, but most people forget — and a surprise cold snap could leave your home unprotected. ThermaCord responds automatically, even in the middle of the night, so your roof and gutters are always protected when temperatures drop.
Yes. ThermaCord is often used to control livestock water tank heaters, greenhouse heaters, poultry warming lamps and pads and other equipment that benefits from automatic temperature control. As long as the device plugs into a standard 120V outlet and draws under 1500 watts, ThermaCord can control it.
The ThermaCord comes with indicator lights in both the plug and receptacle. The plug will glow when it's being energized so you know your outlet is working. When the thermostatic switch allows power to the receptacle, the indicator light in the receptacle will glow as well. When the ThermaCord is supplying power to your heat tape it will warm up. If you’re using Heat Tape Pro with GlowCap™ LED end cap, you’ll see the green light illuminate when it’s active. The controller itself operates silently.
ThermaCord includes a 3-year warranty and is UL approved for safety. It’s engineered to last through years of harsh outdoor use. Since most customers save enough in electricity during the first winter to cover the cost, the warranty gives you extra peace of mind.
Not at all. Installation takes 30 seconds. Plug ThermaCord into your outlet, then plug your heat tape (or other device) into ThermaCord. That’s it.
We keep them in stock and ship same day from Minnesota, don’t ‘cha know. (As long as you don’t order it too late in the day, of course). Orders placed over the weekend will ship the next business day.
Easy. Click here to view the spec sheet.
Yes. ThermaCord is commonly paired with pipe freeze heat cables that don’t already come with built-in thermostats. It automatically powers the cable only when temperatures drop, keeping pipes protected while cutting unnecessary run time.
Yes. Sump pump and furnace drain lines often freeze in cold climates. Plugging heat tape into ThermaCord ensures those lines stay clear during cold snaps but don’t waste energy during warm spells
Absolutely. ThermaCord works with heat tape applied to RV water hoses, boat shore hoses and other seasonal water lines as long as it draws less than 1500 watts. It’s a simple way to protect your system without having to remember to plug and unplug.
A timer just turns heat tape on and off at set hours. ThermaCord responds to actual outdoor temperature. That means it turns on during unexpected cold snaps (even in the middle of the night) and stays off when it’s warm, which saves more energy and gives better protection.
Yes, that’s a good way to think of it, but with professional-grade outdoor durability and UL approval. Unlike a basic extension cord, ThermaCord is purpose-built for roof de-icing cable, pipe heat tape and outdoor heating devices.
No. ThermaCord is designed for 120V plug-in devices only. If you need to control a 240V hardwired system, check out our controllers designed for field-assembled Heat Tape Pro spools.
Yes, that’s one of its biggest benefits. Without a controller, plug-in heat tape runs constantly whenever it’s plugged in. ThermaCord only powers the cable when temperatures are between 37°F and 50°F, saving 30–50% in electricity use.
Yes. ThermaCord is designed to work safely with GFCI-protected outlets, which are required for outdoor use. If your outlet doesn’t have GFCI protection, we recommend upgrading before installation.
We recommend getting one ThermaCord for each heat cable to keep things simple.
PipeFreezePRO comes with one or more 30ft rolls of high-quality fiberglass tape, but you can use any tape with a temperature rating of 150º F and above. Self-adhesive aluminum foil tape can be used but avoid standard tapes, including electrical tape and duct tape because they lose their adhesion when exposed to heat. Remember, it’s imperative to cover the pipe/heat tape assembly with pipe insulation (1/2″ minimum thickness). Think four easy steps: 1) cable on pipe, 2) tape on cable, 3) insulation on pipe/cable and 4) tape on insulation.
Pipe Freeze PRO can be overlapped during installation. This is a fundamental advantage of self-regulating heat cable over cheap, constant wattage cable found in hardware stores is that it can be overlapped without risk of shorting out or catching fire. So yes, overlap away!
The amount of heat cable needed for pipe freeze prevention is determined by a couple of simple factors including: Length of pipe, diameter of pipe, distance to power supply and number of valves.
Most of the time, we do not recommend a spiral cable application because it’s simply not necessary. It requires 3x the cable to do the same job.
Therefore, simply use a straight, single run of cable affixed to the bottom of the pipe (think 6 o’clock position) using the provided fiberglass installation tape. Next, add 1 foot of cable for every valve because you will be wrapping the valve with cable. For pipes less than 1″ in diameter, a single cable run is sufficient. For larger pipes, two cable runs are recommended. Keep in mind that plastic pipes are less thermally conductive so you may choose to use two cable runs on larger plastic pipes to be safe. Finally, if your outlet isn’t close to the pipe you are treating, factor in enough heat cable to reach your outlet (Pipe Freeze PRO does come with a 36″ power cord).
Finally, you must install insulation on your pipe and heat cable assembly in order for the system to operate effectively. See instructions for further details.
The cable can be exposed to wetness but the thermostat must stay dry to function properly. Use Pipe Freeze PRO for pipe freeze prevention applications only.
Consider using Heat Tape Pro inside of open drain pipes as that cable is rated for use in wet areas.
We are frequently restocking products and the one you need will soon be available. You can make a request to be notified when out of stock items are re-stocked.
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Heat Tape Pro has the most comprehensive installation system that works on almost any kind of roof type.
For information about installing Heat Tape Pro on a Natural Slate Roof, Click here.
For information about installing Heat Tape Pro on a Synthetic late Roof, Click here.
Pipe Freeze Pro’s integrated thermostat turns power on and off automatically to the cable to save electricity. The thermostat is the lump located between the power cord and the heat cable. The thermostat triggers the cable to turn on at 37ºF and off at 50ºF, with a sensitivity range of +/- 4ºF. It’s a great feature that makes Pipe Freeze Pro unique among heat cables on the market.
Yes and no. The cable is approved for exposure to wet conditions but you should keep the thermostat dry for proper operation.
No. The thermostat need only be exposed to cold air. It does not hurt to have the thermostat attached to the pipe but it is not necessary. If you choose to attach it to the pipe keep in mind that the thermostat should not be covered with insulation.
No. You want the thermostat to react to the cold environment so it triggers the Pipe Freeze Pro to turn on.
Every Length of Heat Tape Pro has a cord length of 10-feet that is not included in the listed/state length. Meaning: A 100-foot Heat Tape pro will have a 100 feet of heated cable + a 10-foot unheated power cord.
Every Length of Pipe Freeze Pro has a cord length of 3-feet (36″) that is not included in the listed/state length. Meaning: A 30-foot Heat Tape pro will have a 30 feet of heated cable + a 3-foot unheated power cord.
Radiant Solutions has the most comprehensive installation system for Heat Tape that exists. We make accessories to install heat tape on almost any kind of roof.
Click here to learn about product specifically for Natural Cedar Roofs
Check out our full list of Frequently Asked Questions on our FAQ Page.
Take a Look at Our Heat Tape Installation Case Studies
Learn a Bit about Ice Dams and How & Why they Form
