converting

[in house worker]

my duct work is 20" x 16". I want to convert my furnas into a water loop coil using a wood burner. How many rows of 3/4" or 1" copper would I have to build to fit in the duct and give me between 85,000 and 100,000 Btu's? Also how big should the circulating pump be?

[beenthere]

We've not allowed to answer DIY question of this nature.

But, you would be better off buying a hydro coil. Instead of using poor heat transfering rolls of copper.

[dan sw fl]

Originally posted by in house worker
convert my furnas into a water loop coil using a wood burner.
give me 85,000 Btu's?
Also how big should the circulating pump be?

Ask a Geek !

http://www.wisegeek.com/what-are-radiant-floor-heating-systems.htm?referrer=adwords_campaign=radiantfloor heating_ad=013771&_search_kw=hydronic%20heating

[propmanage]

Why would you not just buy a coil sized for the duct designed for the cfm?