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November 06, 2008 00:11 AM  BY WARMZONE
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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.
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December 15, 2008 00:12 AM  BY STACEY BARRUS
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Yes, it might take a little effort, but 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.
Quite simply put, radiant
heaters are the most efficient form 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
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. Don’t
waste expensive heating fuel another day.
Radiant Heaters Tip: More than ever before,
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.
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December 18, 2008 00:12 AM  BY STACEY BARRUS
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The home improvement world has seen many recent
developments in heating, making hydronic systems
more convenient and possible radiant
heater solutions for major home remodeling projects.
Today we’re going to discuss one form of
radiant
heaters: hydronic floor heating.
Hydronic floor heating is the
oldest and most popular type of radiant
floor heating. These systems are comprised of a
boiler or hot water heater, pumps, manifolds,
PEX tubing, thermostat, and either gypcrete (a
concrete-like material) or wood panels. Hydronic heating
is the most complex of all radiant heat systems.
These systems require trained professionals to
design and perform the installation. Your best
economies of scale are achieved for hydronic systems in
large areas or entire homes because of their
expensive components and operational costs.
Hydronic systems can be installed under any type of
flooring.
Most hydronic systems require
hot water tubing to be installed in a
2-4″ bed of light concrete and are best installed
during the initial construction because of its
weight load demands and adjustments to floor
height.
If you’re wanting to
heat smaller areas such as a bathroom or kitchen,
a hydronic floor radiant
heating system may not be the best value for your
project. The complexity and cost of installing
the system, along with the long-term maintenance
and up-keep required, might not be worth the small
amount you will save in operational costs.
Radiant Heaters Tip:
Radiant
heaters for your home or business come in a variety
of forms – all efficient and providing
reliable, cozy warmth
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January 13, 2010 00:01 AM  BY AMY MORBY
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Why Settle When
you can Customize?
Finding a Radiant Heating Solution as Unique as You Are
As temperatures
plummet and heat bills skyrocket, consumers everywhere
are turning to radiant heating systems. As the most
affordable and customizable option out there, radiant
heating is quickly making a name for itself as a titan
in the heating market.
So
radiant heat
is the latest and greatest, but what exactly is
so great about it and what can it do for you? One
word: customization.
When it comes to
radiant heating, the possibilities are endless. No
matter what you want or where you want it, Warmzone can design
a radiant heating system completely customized
for your lifestyle, and it’s as easy as 1,2,3.
1. Choose
The first step of
your radiant heating revolution is choosing the type of
radiant heat you want.
There’s no
limit to what radiant heating can do. Whether you’re
looking to warm up your home or prevent snow and ice
buildup on your property, there’s a radiant
heating option that’s sure to fit your needs.
Indoor Radiant Heating
Turn any room into a cozy paradise with radiant
floor heating. Radiant heating can go under
virtually any surface, including tile, carpet, wood, etc.
Put it in your bathroom, your kitchen, your living
room—anywhere you need heat. Each room, or
zone, can be controlled with its own thermostat.
Given the flexibility and outstanding effectiveness of
radiant
heated floors, it is the most affordable way
to keep your house perfectly warm without racking up the
electricity bill.
Outdoor Radiant Heating
You can also enjoy the benefits of radiant heating
outdoors. Radiant
snow melting systems keep your property safe
by preventing snow and ice buildup. You can choose one or
all of the following options to make your life a
little easier in the harsh winter months:
2. Design
Once you decide
which radiant heating options are right for you, the
Warmzone team will help you design a customized plan of
action. We realize that your radiant heating system
isn’t the same as the next customer’s,
so we work diligently with you to come up with a radiant
heating system tailor made to your needs.
Once
we assess your project’s requirements, our team
will design a custom
CAD drawing of your radiant heating system
telling you exactly what you get, where you’ll get
it, and how much it will cost you. We’ll keep
you involved in every step of the process to make sure
that your custom radiant heating system exceeds your
expectations.
When we’ve
got your customized radiant heating system designed,
we’ll make sure you have everything you need
for a quick and easy installation. If you’re
not comfortable doing it yourself, we’ve got a list
of contractors ready to bring your radiant heating
plans to fruition.
3. Enjoy
Because we help
you with the planning and design process, you’re only
job is to sit back, relax, and enjoy your custom
radiant heating solution. Let your heated
floors warm your home evenly and efficiently. Sit
back and watch from the warmth of your living room as
your radiant heated driveway does the shoveling for you. And
sleep in peace knowing that your gutters and pipes are
safe from nasty and potentially devastating snow and
ice buildup.
Why settle for an
out of the box heating solution? Let us help you
customize a radiant heating system that meets your needs,
fits your budget, and keeps you and your family warm
and safe.
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December 28, 2008 00:12 AM  BY STACEY BARRUS
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If you are looking to warm your floors with radiant
heaters and are trying to research what kind of
radiant heaters to install you might find
yourself scratching your head at this point.
There are dozens of products available to purchase, and
there are even more companies telling you that
their product is the best.
So which product is the best?
Should you install a hydronic heating system
that pumps hot water through your floors, an electric
cable heating system, or a low-voltage screen
system? The answer lies in the type of project
you are doing. Not every system is ideal for every
project, but there is an ideal system for every project.
Hydronic Heating Systems
Hydronic floor heating is the
oldest and most popular type of radiant floor
heating. These systems are comprised of a boiler or hot
water heater, pumps, manifolds, PEX tubing,
thermostat, and either gypcrete (a concrete-like
material) or wood panels. Hydronic heating is the most
complex of all radiant heat systems. These systems
require trained professionals to design and
perform the installation. Your best economies of
scale are achieved for hydronic systems in large areas
or entire homes because of their expensive
components and operational costs.
Hydronic systems can be installed under any
type of flooring. Most hydronic systems require hot
water tubing to be installed in a 2-4″
bed of light concrete and are best installed during
the initial construction because of its weight load
demands and adjustments to floor height. Recent
low-mass products have been developed to avoid
these challenges by fitting the tubing into pre-cut
wood panels, making hydronic systems more convenient and
possible for most major remodeling projects.
If you want to heat smaller areas
like a bathroom or kitchen, a hydronic floor
heating system may not be the best value for
your project. The complexity and cost of installing the
system, along with the long-term maintenance and
up-keep required, is not worth the small amount
you will save in operational costs.
Electric Cable Heating
Electric cable heating
systems, often called line- or high-voltage
systems, are gaining popularity and are ideal for
heating smaller areas (10-300 square feet) like
bathrooms, kitchens, and sun rooms. These
systems are comprised of a thermostat and a heating
cable. On some systems, the cable will be
shipped to you as a large spool of cable. These
systems are oftentimes less expensive, and give you the
ability to space the cable how you want and
customize a layout that will heat every square
inch of your floor. Other systems have the cable
attached to a plastic mesh or tape to create a
mat to maintain its proper spacing.
Every available 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 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. When
heating smaller areas, it is nearly impossible to beat
the simplicity and price of an electric cable heating
system.
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November 11, 2007 00:11 AM  BY WARMZONE
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Radiant heaters,
as opposed to warm air systems (such as a forced air
unit heaters), deliver the source of heat to the floor
level, not the ceiling. And since warm air rises,
heating the floors proves to be the most efficient
means of heating living areas.
Radiant heaters
or radiant energy is the oldest form of heating used to
provide comfort and is the basis for all heating systems.
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.
Under floor
heaters were first used by the Romans. Initially the
preserve of the rich, under floor heating became
increasingly commonplace in public buildings and
villas, particularly in the colder regions of the
Roman Empire. The Roman system was based on hypocausts,
comprising ducts that underlay the floor (itself built
on raised brick piles) and flues that were built into
walls. Hot air or steam from fires circulated up
through this system, warming the floor and walls, with heat
passing into the rooms.
More
specifically, the floor was laid out as series of concrete
slabs acting as radiant heaters supported by columns
of layered tiles, with a furnace at the bottom of one
exterior wall. By placing the fire here, the draught
would take the radiant heat under the floor, and up through
the walls to radiant heater chimneys located in the
corners of the room.
Today we
recognize the brilliance of the Romans and Koreans as early
adopters of radiant heating, as the technology is still a
desired method for delivering comfortable and
efficient heat in our homes. Now we have radiant
heaters using electric resistance cables that are
constructed of highly rated materials and feature
manufacturer warranties of up to 25 years.
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.
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December 14, 2008 00:12 AM  BY STACEY BARRUS
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If you are looking for a great way to save
energy, and maximize comfort, then radiant
heaters may be the perfect solution. Installing radiant
heaters in a home under construction or in an
existing home is proven to cut heating costs. It
works by putting water lines in the
home’s concrete floors or under existing floors
and running hot water through them. Radiant
heaters help to keep the whole house at a more
constant temperature. In this way, our regular heaters
don’t have to do as much to keep things
warm and toasty during the winter.
Switching to radiant
heaters will not only help save energy, and lower
heating costs, but it ads to comfort as well.
That is because it put the heat at our feet,
which are generally cold, and offers cooler air near
head level, where we are generally a little
warmer.
Many times, what first springs
to mind when people think of eco-friendly energy
and heating is solar power. While solar panels are
expensive, there are other eco-friendly ways to cut your
power bill. In fact, energy savings can be found
right beneath your feet:
radiant
heaters.
Radiant Heaters Tip: 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.
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December 19, 2008 00:12 AM  BY STACEY BARRUS
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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.
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December 26, 2008 00:12 AM  BY STACEY BARRUS
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We couldn’t say it any plainer than this:
radiant
heaters are the most efficient form 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
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.
More than ever before, 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.
Radiant Heaters Tip: Being more
environmentally friendly doesn’t have to
involve major renovations. Many peoples’ homes
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.
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December 18, 2008 00:12 AM  BY STACEY BARRUS
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Quite simply put, radiant
heaters are the most efficient form 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
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.
More than ever before, 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.
Radiant Heaters Tip: It might take a
little effort, but 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.
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