Hi, all. A newbie here.
I'm replacing an oilburner with a wood gasification boiler. Haven't yet picked out the brand, but I do want to supply it with outside air in the name of heating economy. Here's what it will take: a 20-foot-long below-grade pipe, diameter at least 12", possibly more, coupled to the air intake. My questions are, what are the friction losses involved in airflow through a pipe and if the boiler specs give a cfm reading, how do I determine if 12" is adequate for 20' to meet the demand?
I just ran across this site today and am soooo glad to have found it!
I'm replacing an oilburner with a wood gasification boiler. Haven't yet picked out the brand, but I do want to supply it with outside air in the name of heating economy. Here's what it will take: a 20-foot-long below-grade pipe, diameter at least 12", possibly more, coupled to the air intake. My questions are, what are the friction losses involved in airflow through a pipe and if the boiler specs give a cfm reading, how do I determine if 12" is adequate for 20' to meet the demand?
I just ran across this site today and am soooo glad to have found it!