E1000 Wood Boiler

The E1000 is the largest boiler in our wood gasification boiler line. It is available in carbon steel and stainless steel and can handle up to 50,000 square feet. Made in Pennsylvania since 1981, these incredible machines allow you to utilize the cheapest fuels, eliminate production wastes, and heat your building, greatly enhancing your bottom line.

The Wood Gun series of gasification boilers is one of the highest-efficiency-rated choices out there. While typical boilers waste two-thirds of wood’s energy potential, the Wood Gun catches and uses up to 2/3 more of the BTUs in wood, changing it all into clean, consistent heat.

The Wood Gun was designed to lessen the work involved in general maintenance…

The Wood Gun series can be utilized with any heating device (water-based, steam, forced-air).

The E1000 wood gasification boilers are typically ordered with an automatic feed option, which lets you use an assortment of wood particle fuels, ranging from wood dust and chips to shavings, pellets, and other wood wastes¹.

Additionally, with an AHS automatic feed system, only slight changes are needed if you want to put logwood in the firebox. The E1000 wood gasification boiler can accommodate wood sizes of up to 10 inches in diameter the Wood Gun and reduce a good amount of log-cutting jobs (the length of the firebox is shown below), with the potential to handle logs to a maximum of 40% moisture, it saves on wood drying time; and, due to our trademark Swirl Chamber’s Exhaust Scrubbing innovation, the Wood Gun’s heat exchanger can clean by itself—so the only maintenance you’ll have to do is ash removal on a weekly basis, and boiler cleaning only three times a season.

How the Self-Loading System Functions

Firebox Level Control

In a typical setting, particle fuel is stored in a large. Fuel is transported on request by an auger and a bin agitator, ensuring a uniform discharge of material. A fuel level sensor that utilizes a photoelectric sensor (3) supervises the height of the fuel in the fuel chamber (4) and turns on the auger instantly. When the fuel in the firebox gets to the level of the receiver, this beam is broken, and the sensor stops the feed system.

The AHS automatic feed system’s two main safety features are the rotary airlock (1) and the fuel valve (2). The fuel valve and rotary airlock separate the fuel being burned in the fuel chamber from the fuel in the loading system, preventing the fuel in the loading system from igniting.

Gasification

Underneath the firebox is the combustion chamber, where we convert the smoke and creosote into usable energy. We make our gasification boiler’s combustion chamber of cast refractory sections arranged edge to edge to create three passages to lengthen the dwell time of the wood gas in order to achieve complete combustion. This material has properties and textures similar to firebrick. It helps to create the environment needed to achieve the high temperatures required to burn the smoke, creosote, and other wood gases. Slots in the refractory bricks provide passageways from the fuel chamber to the combustion chamber. Small fuel particles are prevented from falling through the slots by fuel diverter bricks (6). Fuel diverter bricks are raised and lowered based on the size and kind of fuel being used.

During the gasification process, the discharged gas flows under the fuel diverter and across the slots in the combustion chamber where more than  2000° F is achieved. The intense heat generated here radiates through the refractory lining (5). The wood in the lower portion of the firebox is heated, causing the water to evaporate out of the wood, which allows the wood to begin to gasify (pyrolysis).

Swirl Chamber

Our wood gasification boilers use a draft-inducing fan (8) in order to draw the gases into the combustion chamber. The fuel effectively burns upside down due to the negative pressure. This is important because it allows fuel to be loaded continuously without extinguishing the fire. Once the gases are drawn into the combustion chamber, they pass through the firetubes (9), where most of the heat exchange takes place. On a small-scaled Wood Gun like the one shown, only one firetube is present. Multiple firetubes are used to increase the surface area available for heat exchange in the larger models.

After the firetubes, the gases are given a swirling action as they pass through the swirl chamber (10) and into the cyclone ash separator (11). Here, ash is removed from the exhaust air and deposited for easy disposal. The exhaust passes through the Swirl Chamber in a swirling motion that scrubs the chamber, preventing much of the ash buildup that could decrease efficiency. Exhaust air then exits, which has cooled to about 350 F, through the top of the cyclone ash collector into the flue.

Water Temperature Control

During off-cycle, because all of the doors and the automatic air intake (air valve) are gasketed, we can eliminate any air from entering the boiler. This causes the fire to go out quickly and does not allow the boiler to make more heat than what is needed. Our huge superheated refractory mass immediately rekindles the fire and starts producing heat again when air is allowed back into the wood.

¹An assortment of gasses can be used, such as corn, nutshells, cherry seeds, and paper pellets. Fuel sources are restricted only by natural concerns, like the amount of soot produced, and fuel economy concerns, such as accessibility and BTUs per pound.

For residential boilers, see our Super E210.

• Gasification
• Range of Biofuels
• Fuel-Efficient
• Minimal Maintenance
• Lifetime Durability
• Versatile Applications
• Automatic Feed Available
• Standard ASME Certification
• Made in the USA