Been delivering to hvac shops
I am amazed at the scrap they throw away
I picked up an old oil furnace made from quarter inch steel .
Just need to cut off the top and slide a 55 gal barrel over it .
Well , after the fire box and stove pipe .
They are throwing away good equipment.
If it's old and too expensive to fix
Radiators also known as coils
I'm tuned into the waste stream of plumbing supply stores, sounds like HVAC contractors are next!
The gas water heaters are real diamondsin the rough.
I've turned one into a trough style biochar retort.
Im turning another one into a charcoal producing,water heating woodstove.
The central chimney makes it perfect to capture exhaust heat and the cylindrical form will hold a removable TLUD charcoal retort.