BTU's out of stove

[chefiam1]

Chef here, i was wondering how big of an area can a Warm morning model523

coal stove cover. or btu's put out?

Thanks, Chef

[davidmcbeth3]

Post by lsayre - Old Topic Revisited: How Does a Stove Get Its BTU Rating?

I noted no one answered....you maybe able to figure this out yourself by measuring the grate area ... see prior thread on subject matter a grate area to BTU ratio is noted.

Others may chime in.

[charlesosborne2002]

Chef here, i was wondering how big of an area can a Warm morning model523
coal stove cover. or btu's put out?
Thanks, Chef

Lbs. Anthracite Burned Per Day & Avg BTU's Per Hour Output

This chart shows the BTU output per pound of coal--so if a stove holds 50 pounds, the heat output is 20,250 BTU's per hour. But there are variable that make it complicated, such as carbon content of the coal, moisture, etc.--and the efficiency of the stove. (How much is lost through the chimney is significant, and varies with things like internal flame-paths built into the stove, leaks, air controls, etc.) But the chart gives a rough way to compare stoves according to how large the coal bed is, length/width/height. If you get coal in bags, it is easy to see how many pounds your stove holds. Mine holds 50 lbs--one 40 lb. bag plus about a quarter of a bag more.

You can control the output, of course, by opening or closing the air intake, and it is not advisable to run a stove at maximum heat for long periods. You can determine how many BTU's you need, based on area, by this chart.

https://welovefire.com/btu-calculator/

But of course everything depends on your climate, your home insulation, and your preferences (for instance, whether you want cooler at night, or in the back rooms). I want to be snug in the coldest times, so I like either a big heat source, or several sources, such as a gas space heater in addition to the main stove. Here is a nifty idea, but not cheap: a good-sized wood/coal stove in the living area (around 50 lbs of coal), and a wood/coal kitchen stove that has a side-car using gas for the summer.