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Efficiency Test
The Highest Efficiency. The Fewest
Emissions.
Only One Outdoor Wood Furnace Has Been Able to Make Both Claims.
At
Central Boiler, they relied upon scientific testing to accurately verify the
performance of their furnace and to provide a comparison using accredited test
procedures. In the first-ever comprehensive tests of outdoor wood furnace
efficiency and emissions, The Classic left the competition behind. In this
testing of the five leading outdoor wood furnace brands, The Classic was found
to be the most efficient. It was also found to have the fewest emissions. Data
from these accredited laboratory reports of 1995 were used in these
comparisons. All models tested in this comparison were new regular production
units at the time of testing. Since this testing, the Classic Central Boiler
firebox has been changed to the Ripple Top® (shown below) design to
even further increase performance. Some other manufacturers may have changed
their firebox designs since 1995. The firebox designs that were tested are
shown below the Ripple TopÒ
designs. The delivered efficiency,
stack temperature and emissions charts below show the results of accredited
laboratory test data, collected from identical tests performed using the same
wood and test methods. As of May of 2000 there have been no other published
results from test performed using uniform test methods to accurately compare
performance of outdoor wood furnaces. Others have made claims of performance
but have chosen not to compare side by side to any Central Boiler®
Classic Furnace in published, unbiased, accredited
laboratory testing.
Central Boiler®
continually strives to lead the industry in producing the most efficient outdoor
wood furnaces with low emissions. High efficiency and low emissions mean lower
operating costs, less wood usage, and more heat out of your wood. It also means
cleaner air. That's good for you, and for all of us.
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Why is The Classic more
efficient? The key is more complete combustion, the ability to collect more
heat, and deliver it to the home or building being heated.
Inefficient
Firebox Design
Inefficient designs burn more wood and deliver less heat. Why? Because intense
heat is not trapped or transferred to the water that's pumped to your home.
Instead, the heat rises to the top of the firebox and escapes through the
chimney --
wasting heat and increasing emissions. This is proven by higher stack
temperatures.
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The Classic Ripple Top® Firebox Design
The
heavy-gauge steel firebox in The Classic, with the automatic draft control, is
designed to get the most heat out of your wood. A water baffle traps heat and
gases in the top of the firebox. The Ripple Top® firebox design
creates a high-temperature secondary burn area for more complete combustion. It
also allows for optimum heat transfer surfaces in the most intense heat
collection area so more heat can be transferred more efficiently to the water
that is pumped to your home. The firebox is enclosed in a water jacket to keep
the metal from overheating or warping. And it's surrounded by waterproof,
airtight urethane foam insulation.
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Firebox Designs Tested
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