News Articles


Modern Wood Boilers – The Benefits of Batch Burning

What is a “Modern Wood Boiler”?  Modern wood boilers use sensors, such as oxygen sensors like those found in modern automobile engines, to provide real-time combustion adjustment with separate primary and secondary air controls.  Sometimes these boilers are called “lambda controlled wood boilers”.  Modern wood boilers almost always use induced draft fans rather than forced… Read More »

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Wood Burning is Carbon Neutral

Wood burning is carbon neutral.  For thousands of years, wood burning has been carbon neutral. Now that we face a climate crisis, some people have concluded that wood burning is no longer carbon neutral.  What changed? Here’s what hasn’t changed:  People believe the science they want to believe.   Some think all forestry is unsustainable.  Other’s… Read More »

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June 13, 2018

Wood Boilers- Tools of Evolving Man

A Box of Water with Fire Inside Wood boilers control fire.  It’s an old story.  The ancient people discovered fire.  Hairy the caveman rubbed two sticks together and made an ember.  Hairy controlled his fire by adding the right size wood at the right time. Modern people didn’t like caves or living outside, so they… Read More »

boiler house with door open showing boilers

Featured T4 Installation at the Marsh-Billings-Rockefeller National Historical Park

Boilers: Fröling T4 150 (500,000 Btu/r) wood pellet/wood chip boiler. Previously installed Garn WH1500 (177,000 Btu/hr) with a water capacity of 1,420 gallons. Thermal Storage: The Garn’s water capacity is used as the thermal buffer tank. Fuel Storage: 20’ shipping container modified for fuel storage Fuel Delivery: Modified P4 cyclone (day hopper) suction device. Sold… Read More »