There has been much debate over low voltage radiant systems versus line voltage radiant systems as radiant heat gains popularity in North America. The aim of this article is to dispel some of the myths surrounding the different kinds of systems.

Myth 1: Low voltage radiant systems are safer than line voltage.

Low voltage is low, so it makes sense that it’s safer, right? While this makes perfect sense initially, we have to take a closer look to find out the real answer. If your definition of safe is the chances of being hurt by voltage during installation, low voltage will give you a bit of a shock, but won’t cause lasting damage. The real question we should be asking is how durable is the cable against damage and how well is the cable insulated. Both line and low voltage snow melting systems are embedded in 4 inches of concrete, asphalt, or under pavers. When installed properly the embedded systems are not exposed and harmful. Some low voltage heating wires are NOT designed for embedment. These have only a thin layer of plastic and a heating element that is THHN/THWN wire. This wire is intended for interior use NOT in concrete, asphalt, or under pavers. Low voltage wires do not have ground fault protection, so electrical leakage can go undetected.

In contrast, line voltage obviously has higher voltage, which is why line voltage cables are built to withstand wear and tear, and are much more difficult to damage. If you do manage to damage a line voltage cable, don’t worry! Line voltage systems are equipped with ground fault protection (GFEP) breakers with a 30 milliamp trip. Which means the system will automatically shut off when it has reached beyond allowable leakage levels. What does this mean? Well for one you don’t need to worry about bodily harm, but you also don’t need to worry about potential fire hazard from a damaged cable. The bottom line: both line voltage and low voltage systems are safe to use.

Myth 2: Low voltage radiant systems cost less to run than a line voltage system.

It is true that low voltage radiant systems consume a lower amount of power, but this doesn’t mean it is less costly to run. Low voltage systems can actually be more expensive to operate because these systems generally produce 20 watts/sq ft (which is below ASHRAE standards). By producing less heat per square foot, it takes longer to heat the same area, thus increasing the cost and the time it takes to melt. Because of the decreased heat output, during heavier snow falls low voltage systems struggle to keep up with the snowfall, and have to remain on much longer. For this reason, ASHRAE has set forth watt standards for snow melting.

Line voltage systems are designed specifically for the environment in which they will be operating. These systems are made to produce the necessary watts (that meet ASHRAE standards) to melt snow in the most efficient time possible.

Some low voltage systems on the market have some distinct advantages over line voltage. Zmesh is low voltage, but does not rely on heat cables to generate heat. Instead it is constructed of a unique thin mesh that requires no embedding in thinset and can be installed directly under carpet pad, hardwood and even for use on your roof for snow and ice melting. The biggest advantage of Zmesh is that you can hammer nails into it without worry of damage!

Myth 3: Low voltage systems are easier to repair.

Both line voltage and low voltage cables are easy to repair. Simply remove the bad section of cable, add in a splice kit, cover it back over with whatever surface it’s in, and the system should operate as normal. You do not have to replace the entire cable or rip out the entire surface, only the area that is damaged. The location of the break can be identified by using devices such as the DEVItrace from Danfoss or a TDR, which uses radio frequencies and a “wand” to locate the damaged section of cable.

Myth 4: Low Voltage systems are more efficient.

Low voltage systems are NOT more efficient. Since these systems have a much lower output of heat per square foot; they take much longer to melt snow, especially during heavy snow storms and probably will not be able to keep up with the demand. Further increasing their inefficiencies, low voltage systems must have the electricity pass through a transformer and very thick power leads (2 gauge), which causes voltage to drop as it travels distance before reaching the heating element. Line voltage cables have the energy to go directly into heating, without the loss of power. Overall, both line and low voltage systems are more efficient than hydronic snow melting.

Myth 5: Low voltage systems offer a better warranty.

Some low voltage warranties are very deceiving. They boast of a 25 year warranty period, but when examined closer it is found that the 25 year warranty only covers the heating wire. As discussed earlier these heating wires are actually THHN or THWN, which can be purchased relatively cheaply at any hardware store.

Warmzone’s line voltage cable manufacturer’s warranty (Danfoss) covers up five times the cost of the original system which is intended to cover the cost and time involved in making repairs, not just the actual heating element itself.

Myth 6: Both systems provide sufficient heat.

Low voltage systems in most snow melting applications do not meet the ASHRAE standards. The minimum watts per square foot ASHRAE requires in North America is 32 watts per square foot. Popular low voltage systems on average are designed to produce approximately 20 watts per square foot and with extremely tight spacing will max out at 30, still below the standards ASHRAE has set forth.

Line voltage systems are designed specifically for the environment in which they will be operating. These systems are made to produce the necessary watts (that meet ASHRAE standards) to melt snow in the most efficient time possible.

Myth 7: Both systems are UL Approved.

Most low voltage snow melting systems are not UL listed. Warmzone’s line voltage systems are UL tested and approved.

SYSTEM WEAKNESSES

• THHN/THWN wire was not designed for concrete embedding. The outer jacket is soft and easily cut which will shorten its life.
• Low heat output – Does not satisfy ASHRAE requirements.
• Bulky and costly controls (transformer and control box are 100 lbs per 200 square foot zone).
• Warranty - only covers THHN/THWN wire. Control box is 1 year, transformer is 5 years.
• Slow to install - the transformer and control box are complicated and time consuming to install.
• Noise – transformers emit noise and location of them must be considered.
• Price – low-voltage systems are typically double the price of a comparable line –voltage system.

As radiant heating systems have gained popularity, a lot of fly-by-night manufacturers are trying to cash in on the recent boom. This sparked ASHRAE to come out with standards for radiant snow melting systems to prevent abuse from manufacturers. Most low voltage radiant snow melting systems don’t meet the ASHRAE standards for quality and efficiency. Unfortunately, not all consumers are aware of standards in the radiant industry and purchase faulty products unwittingly and end up with negativity towards radiant heating in general. Rest assured there are plenty of efficient radiant systems that will run smoothly for decades without needing any maintenance. Make sure to do thorough research before purchasing any products, which means checking for proper safety certifications and standards, and you won't regret it.  

As demands for lower energy costs increase, homebuilders, househunters, and home renovators alike are looking for energy-efficient heating options for houses.  We say they need look no further than radiant heaters for their ideal home heating solution.
In a nutshell, radiant heating is among the most efficient forms of heat available in today’s market. Significantly less operating time is required to attain and maintain the desired warmth compared to furnaces and other, traditional methods of heating, which keeps operational costs to a minimum.

High efficiency boilers or electric radiant floor systems makes radiant heat one of your most efficient ways to heat your home. Combined with a well-insulated home, these radiant heater systems can quickly warm your home and then shut down or wait idle for long periods of time before being called upon by the thermostat to operate.

Radiant Heaters Tip:  Being more environmentally friendly doesn’t have to involve major renovations. Many people waste a lot of energy by not sealing cracks, doors and windows. Checking to make sure a home’s insulation is in good shape and replacing it if it’s not is another good surefire way to stop, prevent, and reverse energy waste. 

Not traditionally used in heating homes, flat panel radiant heaters are used to heat objects via radiant heat transfer. These radiant heaters have traditionally been used in a variety of industries and applications, such as space heating, drying, curing, and water evaporation. More recently, these heating systems are also gaining popularity in home heating applications as well.

Radiant heaters use different types of emitter surfaces. Choices include: quartz, high-temperature glass, stainless steel, and ceramic tiles. These are all materials that are easily and efficiently used in home applications such as flooring, countertops, and towel racks. Because these items are easily turned into emitter surfaces for radiant heat, they can easily and beautifully be incorporated into home heating applications such as heated floors, walls, and towel racks.

To find out about radiant heaters for your home, check with the folks at warmzone.com. They have a complete product catalog of radiant heating solutions that can accommodate almost any application or budget.

Radiant Heaters Tip: radiant heaters a great way to efficiently heat a home, while maximizing your home’s beauty, but they are very cost effective and easy to install. 

What a pain! If you or anyone in your family has asthma or dust allergies, you know all too well how miserable these ailments can make a person. Many allergy and asthma experts will advise certain changes in housekeeping habits to help alleviate allergy- or asthma-causing conditions in your home. In addition, you might consider changing your heat source to radiant heaters.

At first glance, you might not think that radiant heaters could be such a simple solution to helping keep your home healthy. In reality, radiant heaters improve the air quality, which is important, especially for anyone who suffers from either dust allergies or asthma. Not having to change air filters or clean heating ducts should also cut down dramatically on dust or other allergens in your home’s air.

Eliminating dust mites that live in your home would also go a long way towards helping keep your home healthy. Since dust mites love a warm moist environment, towel heaters and other radiant heater systems aid in maintaining a consistent room temperature and keep it moisture-free…and dust mite-free, too.  Furthermore, mold and mildew are also caused from excessive moisture especially in bathrooms with insufficient ventilation.

Radiant Heater Tip: By placing radiant heaters or a radiant heat towel rack in the bathroom you can combat the spread of germs for only pennies a day. 

With a name like Warmzone, we have an unspoken obligation to live up to the task of matching our customers to the best available system of warmth and comfort.  We strive everyday to ensure that our products and our knowledgeable, dedicated staff will leave memories of service that is second to none, and products that will provide years of enjoyment.

A brief history of Warmzone allows consumers to understand why Warmzone was created. Warmzone realized the growth in the radiant heat industry was causing problems for consumer and contractors due to the abundance of technical information and product choices. Making the right choice for a radiant heat system is crucial and carries serious implications to its cost and effectiveness.  Serving as an intermediary between manufacturers, contractors and consumers, Warmzone’s role is to match individual needs of a project to a heating system that makes the most sense.  We strive to match our customer’s needs with the finest radiant heating systems available.  Warmzone.com offers non-biased, individualized solutions that factor the installation, durability, performance and operational investment as the key criteria for our customers.

There are several variables that Warmzone considers when looking at a project.  Some of these variables include:  square footage, the type of floor covering, the amount of heat needed for a given area, whether that heat will be the supplemental or primary source, how well insulated that environment is, and if it is a major remodel or completely new construction.
           
Based on this criterion, we can then discuss the benefits of a radiant heating system and which technology would be most appropriate for a consumer in terms of effectiveness, efficiency, operational costs and overall upkeep and maintenance.

Because radiant heat is relatively new in the United States, there is a continuing need to educate consumers about a wide variety of radiant solutions.  In the interest of avoiding confusion and finding the best possible application, Warmzone has done most of the homework for our prospective customers.  Our professional consultants learn the details regarding your heating goals and then propose a system that can be easily installed and will fit your budget.  Warmzone continues to strive toward being viewed as the premier radiant provider.  “We want customers to feel confident in this market and receive honest information and pricing regarding the best available products,” says Brandon Weaver, Vice President of Sales.

With so many options in the radiant industry, Warmzone.com is helping contractors and consumers with the pros and cons of each system.  Representatives of Warmzone suggest the best possible system for any project.  We are not tied to any one manufacturer and will provide the very best in pricing and information available.  Warmzone has a very direct relationship with select manufacturers thus eliminating the ‘one size fits all’ sales pitch normally received by homeowners. Using various forms of technology, Warmzone’s focus is to provide customers with the most pertinent information in record time. We know this is the key to establishing trust and long term partnerships.

As heating costs skyrocket, radiant heating continues to come to the forefront.  We at Warmzone excel in providing options that are affordable, convenient and specifically tailored to the needs of individual consumers.  As we match products with needs, we continually strive to provide our customers with “warm, pleasurable” heating experiences.  After all, feeling warm IS a wonderful thing!

We would welcome the opportunity to serve your needs. Visit us at www.warmzone.com, or call us directly at 1-888-488-WARM.       

About Warmzone
Warmzone provides consumers with energy-efficient, radiant heating solutions for homes and businesses. Based in Salt Lake City, Utah, Warmzone's electricians and radiant heat experts will help you determine the best radiant heating solution, ranging from electric heated floors to large commercial snow and ice melt projects. Send us a plan or drawings and we'll be happy to provide you with a FREE estimate and options for your roof heating and ice melting project.

Radiant Heaters Tip: Many recent developments have made hydronic systems more convenient and possible radiant heater solutions for major home remodeling projects.

Have you ever gone on a ski vacation for the weekend and stayed at a little ski lodge? A lot of the times, they’ll have a huge fireplace in the main room with smaller bedrooms up in the loft area or second-story. But the problem is that when you’re in the main room with the roaring fire, you’re often overwhelmed by the heat and retreat to the bedroom, where it’s far chillier. You see, many vacation or weekend homes weren’t built with air conditioning ducts with which to deliver the heat to the different rooms of the house. However, there is a solution to adding heating to homes that have not been built for traditional forced air systems: radiant heaters.

As opposed to warm air systems (such as a forced air unit heaters), radiant heaters deliver the source of heat to the floor level, not the ceiling. Radiant heaters or radiant energy is the oldest form of heating used to provide comfort and is the basis for all heating systems.

Additionally, radiant heaters also offer more comfort than forced air heating by heating the atmosphere from the ground up. Since heat rises, the heat will be more evenly distributed, providing a much more comfortable atmosphere.

Radiant Heaters Tip: Radiant energy is totally pure radiation and is absorbed by an object without physical contact with the heat source or by heating the surrounding air, as is the case with convective, forced air systems. 

Radiant Heaters Tip: It is reported that many people waste a lot of energy by not sealing cracks, doors and windows; checking to make sure a home’s insulation is in good shape and replacing it if it’s not is another good way to stop energy waste.

Are you having a hard time deciding which radiant heat system is right for you?  We know, it sometimes can be hard to narrow down what kind of radiant heaters to install. There are dozens of products available to purchase, and there are even more companies telling you that their product is the best.

For many homeowners, electric cable heating systems, often called line- or high-voltage systems, are gaining popularity and are ideal for heating smaller areas like bathrooms, kitchens, and sun rooms. These systems are comprised of a thermostat and a heating cable. These radiant heater systems are oftentimes less expensive, and give the ability to customize a layout that will heat every square inch of your floor.

Every available radiant heater cable system is equally effective, so when determining which system to purchase, you should look at the warranty of the product, along with the ease of installation. Some cables must be embedded in a separate layer of concrete or mortar, whereas other systems can simply be installed in the thinset. Most radiant heater cable systems can only be installed under tile. However, on others, if the cable is embedded in mortar or concrete, any flooring can be installed on top of the concrete.

Radiant Heaters Tip: When heating smaller areas, it is nearly impossible to beat the simplicity and price of an electric cable radiant heating system.