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Before I tell you what's
not to like about the
Edenpure quartz
infrared heater
, I'd like
to spend a minute telling
you what I do like and
explain how a quartz
infrared heater works.

How the EdenPure
At the heart of these
infrared heaters are the
quartz bulbs.
Similar to incandescent lamps, quartz bulbs are formed by enclosing a
tungsten resistance wire within a high purity quartz sheath.

They provide even, non drying  floor to ceiling heat and, according to the
manufacturer, reduce positive ions in the atmosphere responsible for many
respiratory problems.

The bulbs are rated to last 5 – 7,000 hours, or 3 – 5 years, and cost around
$15 each to replace.

The Edenpure/SunTwin heaters are offered in 3 sizes: 500, 1,000, and 1,500
watt and the unit model numbers coincide with the heat output in watts. So a
SunTwin 1500 Elite produces 1,500 watts.

The heaters are thermostatically controlled, equipped with a circuit breaker,
and have a 1 year warranty.

What I Do Like About the EdenPure Quartz Infrared Heater
It has a cool to the touch exterior and, unlike some other heaters, doesn't
have glowing red wires or an exposed fan. This is a big plus if you have kids
and/or pets.

Despite the complaints some consumers have with the EdenPure, I haven't
found one that is health or safety related. You can read for yourself the
results of a Fire Captain's test of the EpenPure

What's Not to Like
The #1 complaint of consumers who have actually purchased the EdenPure
heater comes down to this: Too little heat for too much money.
Putting aside
the cost factor for a moment, I'll address the "too little heat" complaint first.

Too Little Heat
Most of the ad copy I've read for the EdenPure states it is "rated to heat up
to 1,000 square feet."

The term "rated to heat" is useless at best in determining the effectiveness of
any space heater. The results you get from a 1,500 watt heater, EdenPure or
otherwise, depends on how it's being used. Bear in mind, the heat generated
by a 1,500 watt heater approximates only 5,000 Btus. This is minuscule
compared to a typical 65,000 Btu oil or gas fired furnace.

If you're depending on a 1,500 watt heater as your
only heat source, it will
heat only 150 square feet depending on how well your home is insulated,
obstructions to the flow of heat, such as walls, and the outside temperature.

Here's the basic "rule of thumb" formula for calculating space heater capacity:
Watts/10 = heated space in square feet.  Or: 1,500/10 = 150.

However, if you use a space heater to supplement your existing heating
system by turning back the thermostat and letting the space heater pick up
the slack, you could increase the effective heating range of a 1,500 watt
heater to around 400 square feet.

Too Much Money
I chalk this up to what I call the "furniture factor." You can either buy a space
heater that looks like a space heater for less than $100, or one that doubles
as an end table for $400.

Editor's Note: Other manufacturers of quartz infrared heaters now offer
products very similar to the EdenPure/SunTwin heaters but for far less
money. The
Dr Heater brand portable infrared space heater is one example.
EdenPure Quartz Infrared Heaters: Pros and Cons