Gravity furnaces just have a huge flame that warms up the air in the ductwork, and all of the exhaust gas that leaves your home through the chimney is wasted heat. On a gravity furnace, about half the ...

Q: We are looking to buy an older house that has a very unusual furnace. The home inspector calls it a gravity furnace, but I think it looks more like an octopus with these large pipes that protrude ...

Interest in wood-fired hydronic heating systems continues to rise along with the price of conventional fuel. One heat source used for such systems, especially in rural areas of North America, is the ...

TOWER - They say Iron Range Finns are usually a reserved bunch, but Daryl Lamppa talks about his Kuuma wood burning furnaces with the zeal of a traveling street preacher selling the Good Book. Lamppa ...

You've read 5 stories this month. Support the CT Mirror reporting you rely on. You can chuckle all you want about outdoor wood furnaces and whether they’re a subject the legislature should even bother ...