Volume #BFS, Issue #25, Page #21
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Everyone Who Heats With An Indoor Wood Stove Should Know About This Alternative
Given the rising costs of fossil fuels, heating with wood is a popular and economical choice. However, those who burn wood in indoor stoves or fireplaces know that these appliances aren’t very good at heating more than one room and that they heat unevenly. Areas further away are cooler, while areas closer can become too warm. There are other disadvantages to using an indoor wood stove or fireplace, such as the risks associated with chimney fires, carbon monoxide, and the ongoing mess in the home.
Outdoor furnaces (also called outdoor boilers or hydronic heaters) improve living conditions in the home. Because the outdoor furnace is located outside, the fire risk (from chimney fires or embers spilling out of an indoor stove) is removed from the home, and so is the wood, eliminating the mess, bugs, and mold that can occur when hauling wood inside or even storing it there.
Outdoor furnaces work with existing heating systems, such as a forced-air furnace or in-floor hydronic heat, to provide evenly distributed heat throughout the entire home. People feel more comfortable in the heat of an outdoor furnace than with oil, gas or electric heat systems. 
An outdoor furnace has a firebox that is surrounded by water. As the wood burns, it heats the water. Water is an efficient way of moving heat. The water is circulated to and from the buildings through insulated underground pipes known as ThermoPEX®. In the case of a forced-air furnace, the fan blows through a heat exchanger installed in the plenum to provide heat for the home through existing ductwork. Other methods can use water-to-water heat exchangers or even direct thermal transfer.
The Classic Edge HDX outdoor wood furnace is Central Boiler’s premier offering. This American-owned company has long been recognized as the industry leader in advancing outdoor wood furnaces.
Central Boiler’s Classic Edge HDX models (four models ranging from 150,000 to 400,000 Btu ratings) are EPA Step 2 certified and among the top for efficiency of all stick-cord wood heating appliances certified for sale for residential heating in the USA.
In fact, at 92% overall efficiency, the Classic Edge 960 HDX is the most efficient of EPA-certified stick-wood-burning appliances. These furnaces use up to 60% less wood than traditional wood heating methods and are among the cleanest ways to heat with wood.
Classic Edge HDX models feature a stainless steel firebox that ensures zero corrosion inside the firebox. They’re built to last a lifetime.
The FireStar combustion controller, available only from Central Boiler, automatically controls the combustion process with any heat load, large or small. It lets you view the furnace’s operation 24/7 using your smartphone or computer.
The FireStar is one reason Classic Edge HDX owners consider this the easiest outdoor wood furnace to operate.
The Classic Edge HDX is packed with features—including the Easy View heat exchangers, Reserve Mode, Clean Relaod and automatic combustion control—that allow you to burn any kind of firewood efficiently. The FireStar lets you “load it and forget it.”
 Everyone who heats with an indoor wood stove should know about this alternative that works “right out of the box” without complicated manual adjustments.
For more information on Central Boiler’s outdoor wood furnace line, visit the website at CentralBoiler.com.


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Volume #BFS, Issue #25