2-Pipe Versus 4-Pipe Buffer Tank Configurations In the following article, HeatSpring instructor John Siegenthaler discusses 2-Pipe Verses 4-Pipe Buffer Tank Configurations. Read on to learn more about… The importance of a properly sized buffer tank for both wood gasification boilers and boilers fueled by pellets/wood chips The primary differences… Continue reading “2-Pipe Versus 4-Pipe Buffer Tank Configurations”