Coal needed to produce 100000 BTU/s

[noxnoxmox]

how much coal is required to produce 100000 BTU/s in a typical house?

I have been looking and looking with no leads on it

need help please

 

[russ_watters]

BTU/s? That would be an awful lot. 100,000 BTU/hr would be a healthy heating rate for a medium-large house in a cool climate. For the coal required, wiki says coal has an energy density of 24 MJ/kg, which is 10,340 BTU/lb, so 100,000 BTU/hr would take about 10 lb/hr.
http://en.wikipedia.org/wiki/Energy_density#Common_energy_densities

 

[meplumber]

I am a plumbing, heating, and cooling contractor in Maine. 100,000 btu/hr is normal for a house up here with a -10 design temp. We use 12,000 btu's per lb for bulk or bag coal. It has always worked for us.

 

[OldEngr63]

The specific heat of coal varies all over the map. Really good Pennsylvania anthracite (virtually unavailable now) was as high as 17,000 btu/lb, while some Texas brown coal is as low as 2500 btu/lb. Be sure to get the correct specific heat for the coal you plan to use.