Wood to sand to water?

TechShop · 09-23-17, 11:49 PM

I have a small (all welded steel) wood-stove and a shed next to my building. I've been thinking about welding up a box on top of the stove, placing a coil of copper in the bottom of the box and filling it with sand.

I would plan to connect the copper coil to the hydronic heating system in my building. (Inuslated slab on grade & air-handlers).

The shed already exists and will be stocked with my existing firewood supply. The wood-stove would get some insulation and a sheet-metal dog-house. Any heat loss from this will simply help to dry the wood and keep the shed warm/dry.

What do you guys think about the sand as a means of both heat transfer and a small thermal storage "mass"?

09-23-17, 11:49 PM	#1
TechShop FNG Join Date: Jul 2015 Location: Washington Posts: 71 Thanks: 8 Thanked 19 Times in 13 Posts	Wood to sand to water? I have a small (all welded steel) wood-stove and a shed next to my building. I've been thinking about welding up a box on top of the stove, placing a coil of copper in the bottom of the box and filling it with sand. I would plan to connect the copper coil to the hydronic heating system in my building. (Inuslated slab on grade & air-handlers). The shed already exists and will be stocked with my existing firewood supply. The wood-stove would get some insulation and a sheet-metal dog-house. Any heat loss from this will simply help to dry the wood and keep the shed warm/dry. What do you guys think about the sand as a means of both heat transfer and a small thermal storage "mass"?