Tag Archives: Zoning control

Heating a Driveway with Limited Power

Zoning Your Driveway Heating System

Radiant heat is one of the most efficient ways to keep any driveway or walkway free of hazardous snow and ice. When considering installing a heated driveway, many wonder if they have enough power to run the radiant heat system. For most situations in homes or businesses, the answer is yes, as most have more than enough amperage to operate an average sized radiant heating system. However, in the cases where amperage may be lower, or the driveway larger, Warmzone has options to ensure that a radiant heat snow melting system can still be installed, and effectively provide the snow melting performance you expect, safely and efficiently.

Heated driveway installation
Zoning is often used to heat large areas that typically require more power.

The first step when purchasing a snow melting system is deciding the area needs to be heated. At Warmzone, professional design services are included top help you. Warmzone representatives can even assist you in determining the square footage of the area you want heated. By using a special software program, they can view your property and help you determine an estimate of the square footage of your driveway. After determining your snow melting needs and available budget, Warmzone designers will design the system that best meets your needs. Each snow melting system is designed according to ASHRAE standards, taking into account the average winter weather conditions in your area. Your system layout will not only include the ideal layout of the system components, but also include all the electrical information necessary for your electrician, such as proper load calculations, breaker sizes, number of breakers, as well as the power requirements of the system.

If you want to get an idea of available amperage in your home, power can be checked by accessing your home’s main breakers. In most homes, there is either a 100 amp, or 200 amp breaker panel. When considering a snow melting system, there are few basic guidelines that homeowners should consider when checking the power in their home. One 30-amp breaker typically supplies enough power to heat a 170-square-foot area. That means to heat a driveway that is 350 square-feet, two 30-amp (or one 60-amp) breakers will be needed. If you have questions, it is always best to have a qualified electrician come out and asses the power at your home.

If the power requirements at your home or business are insufficient, you may still be able to enjoy the benefits of a snow melting system when working with Warmzone. The heated driveway can be designed to use a technique called “zoning”. The principle behind zoning is simple: the area to be heated is divided into zones, and power is sent to each zone separately. For example, if you only had two 30-amp breakers available but wanted to heat your driveway, front sidewalk and parking apron, the snow melting system could be divided into 3 zones. Power would be used to heat each zone separately, thereby optimizing the available power. Warmzone now offers a new sequencer that allows the system to “bounce” power from zone to zone, allowing a large area to be heated almost simultaneously. While this technique requires slightly more time to heat the entire area, it also ensures that snow is melted from the driveway, sidewalk and apron.

Old zoning systems relied on zones being heated separately in their entirety. Separate sensors were installed in each zone to enhance the efficiency of the system, and each zone was prioritized. After zone 1 was cleared, zone 2 would then heat, and then zone 3 would heat, and so on. However, the new sequencer eliminates the need of melting snow from one zone before moving on to melt snow from the next zone. “Pulsing” the power from one zone to another makes the system much more efficient – and gives homeowners with minimal power the opportunity to heat larger areas.

Snow melting system divided into zones for power usage
When faced with a limited power supply, snow melting systems can be installed to heat by zones, shown in this illustration.

Snow melting systems from Warmzone are designed for optimum efficiency and cost-effective operation. Installing a radiant snow melting system is a great investment in your home, and systems typically clear the area during a storm at a cost less than hiring a snow removal service to clear your driveways and walkways. An automated snow melting system can help to ensure safe access to your home or business for years to come.

Zoning is a great way to make your dreams for a safe, efficient snow melting a reality – even when dealing with low amperage. Warmzone’s design professionals will help create the ideal system to operate within the power requirements of your home or business. If you have questions and would like to discuss the options that are available, contact Warmzone today at 888.488.9276.

Snow Melting Systems: Where do you Start?

Tips for Those Considering Radiant Heat

Purchasing a snow melting system like the ClearZone system offered at Warmzone is a great way to eliminate manual labor and make your home or business safer, but the process of finding, purchasing, and installing a system can seem complicated to any buyer. There are quite a few questions that can slow the purchasing and installation process. What products best suit my needs?  How much power is required? How is my system installed? Here is a quick breakdown of the procedure to help you make a confident and informed decision.

One of the first things that needs to be addressed when installing a snow melting system is to determine the square footage of the area to be heated. A rough draft of the area you wish to heat is typically needed to begin the estimate and design of your radiant heat system. If you are unsure of the exact measurements or don’t know how to calculate the square footage of your driveway or area to be heated, contact Warmzone at 888.488.9276. With state-of-the-art software that allows for a satellite view of the property, a qualified Warmzone representative can measure the square footage for your project over the phone. Warmzone also offers professional design services to provide you with a detailed layout of your system. The custom layout takes all factors into consideration, including, the specifics of your property, the climate of your location, average yearly snowfall, and power requirements. Designing a custom system for you ensures that the best solution is provided and makes the installation of the heated driveway you’ve been imagining easy and painless.

Professional design and layout of radiant heated driveway
Example of radiant heated driveway system AutoCAD.

When it comes to power for your radiant heat system, here are few basic guidelines. It is important to verify the existing voltage (110/120 or 220/240) and available amperage. To make certain of your home’s power, we recommend having an electrician come to your location to measure the amperage. However, you can also check your home’s power by accessing your main breaker panel. Most homes are equipped with either two 100 amp panels or one 200 amp panel, which should be located at the top of the main breaker box. When figuring out what power your system may need, consider that one 30 amp breaker will heat about 170 square feet, so a 350-square-foot driveway would require one 60 amp breaker, or two 30 amp breakers. But don’t be intimidated by these details. Warmzone radiant heat experts will assist your electrician at any time to help ensure that all of your project information is correct prior to any installation taking place.

Most homes have more than ample power to operate a heated driveway or sidewalk(s). However, in the unlikely situation that there is limited power available, a technique called zoning can be used.

Zoning allows those with minimal power to still enjoy the benefits of a snow melting system. Your designated snow melting area is divided into zones, each with its own snow sensor. The zones are prioritized by which area must be cleared. Each zone operates separately, utilizing the available power to remove snow and ice from the designated area. This allows the system to optimize the available power. After the first zone is cleared power is sent to the next zone and so on, cycling much like a sprinkler system.

Snow melting system divided into zones for power usage
When faced with a limited power supply, snow melting systems can be installed to heat by zones, shown in this illustration.

At Warmzone, zoning is efficient and cost effective. The smart cycling features allow an area that may already be cleared to be skipped and not activated. Homeowners can also operate the system manually. If you have any questions about power, a Warmzone representative would be happy to assist you and explain your options. To talk with a radiant heat expert, call 888.488.9276.

After verifying the voltage and available amperage of your home or business, you can move forward with the installation. Snow melting systems can be installed in almost any medium, whether it’s asphalt, concrete, or pavers. After choosing and receiving your heating cable and other system components, it’s time to prepare the area for installation. Make sure the area is cleared of any rocks or debris that may damage the heating cable.

With concrete installations, a wire remesh is installed and the heating cable is secured to the mesh to ensure proper cable spacing and prevent shifting during pouring. Next, Mesh-Up plastic supports are installed to prevent the cable from sitting on the ground. Finally, an aerial mount snow sensor is installed, which activates when there is precipitation and temperature drops below the set point (usually 39°F). When installing system components make sure to follow building codes and advised installation methods. You can also check out some basic installation tips here or view some helpful installation videos.

Still have questions about snow melting systems? Take advantage of the many industry leading services available at Warmzone. Professional design and engineering services offered at Warmzone provide customers with product consultation as well as a detailed CAD of their system’s layout. This ensures system performance expectations are met and minimizes installation issues. Free Installation training through Warmzone University is offered online or in person, and free tech support from radiant heat experts and electricians is also available.

Heated paver driveway in operation.
Example of a snow melting system in action.

Check out all the benefits Warmzone can offer by contacting a dedicated professional today at 888.488.9276.