franco b wrote:Smokeyja wrote:It has to be way more than that because of the efficiency of that stove. If my kerosene heater puts out 22,600 btu/hr and my WM I believe puts out 40,000btu/hr then that base heater should put out more... But I could be wrong . That stove will transfer those BTUs a lot more efficiently though and the area being heated wil hold the heat for longer .

No stove can put out more heat than the BTU content of the fuel it burns. Knowing the pounds of coal burned and its BTU content minus a percentage for heat lost up the chimney and unburned gasses a pretty close approximation can be made of net output.

For your Warm Morning to put out 40,000 BTU you would have to burn about 92

pounds of coal a day. Probably more.

Kerosene heater makers were also guilty of inflating output. This was proven when Consumer Reports tested them. Your heater would have to burn about 4 gallons in 24 hours to have that output if it was 100 percent efficient, which it is not.

So the blaschak anthracite is 13,000btu/lbs and the bituminous I burn is 13,131btu/lbs

Im easily burning 40lbs in a day so I'm burning up close to 520,000btus of course some is lost out the house and Its give or take.

I don't know what the efficiency rating is for a WM but it would be interesting to figure out wha it really can be approximately rated for.

So just guessing here but I could divide the 520,000 by 24 (and I'm widely estimating here ) and get about 21,666/hr and then calculate the heat loss and that would be a more realistic range right?

Now the kerosene heater loses no heat up a chimney so the 22,600btu /hr seems to be correct for the size heater it is.

Of course these are guesses and originally when I posted why I posted I was thinking of it in a whole different way! This brings it much more into prospective.

That kerosene heater holds 1.8 gallons and on low can burn an easy 16 hours without refill . But anyways I know there is a lot more to it than these simple numbers. But I will save all that for another thread. This has struck my interest.