How much do AA-130's and AHS S130's burn per heating season?

Re: How much do AA-130's and AHS S130's burn per heating season?

PostBy: Rob R. On: Mon Nov 04, 2013 10:32 pm

imcloud1 wrote:WOW, why are you guys burning so much coal, 5 tons is a lot? Our annual dd is around 6200 my house is over 4000 sq feet and we use 3 tons, house is very well insulated but rite now the living room is 73 degrees because my wife is always cold.... no dhw though but that shouldn't use much coal..


You answered your own question. Modern homes have much less infiltration than homes 20 yrs old. Wind exposure and solar gain can make a big difference also. As for the domestic hot water usage, that totally depends on how much hot water you use. I am sure you will agree that a house with two energy-conscious adults will use less hot water than a house with three teenagers taking long showers...add in a soaker tub for "mom" and suddenly the DHW load starts to get scary.

As for Larry's question, I know three people running AA130's and they average about 5 tons per year. Some people will burn more than others...my assessment is that if the stack temperature is reasonable and the house is comfortable, you are doing fine. Keeping the wind from blowing through your house is the #1 thing you can do to save fuel/coal.

I have gotten some strange looks when I mention how much coal I burn...but depending on which chart you look at my annual DD are in the 8000 range, the house is 100 yrs old, some windows need attention, the wind exposure is SEVERE, the house has very little Southern exposure, we like it warm, and our domestic hot water usage is probably well above average.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: How much do AA-130's and AHS S130's burn per heating season?

PostBy: gizmo On: Mon Nov 04, 2013 10:37 pm

I lit my boiler a month ago and it will
run until it's 70 outside.It's 6 months
a year of heat.I think that's a bargin.
gizmo
 
Stoker Coal Boiler: AA-130
Coal Size/Type: Anthracite/Pea
Other Heating: NONE

Re: How much do AA-130's and AHS S130's burn per heating season?

PostBy: imcloud1 On: Mon Nov 04, 2013 10:58 pm

It just struck me as a lot, but I guess if you do the math 5 ton 24million btu per ton, its not as much as it sounds like...

I am curious, What are your stack temps?
imcloud1
 

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Re: How much do AA-130's and AHS S130's burn per heating season?

PostBy: Rob R. On: Mon Nov 04, 2013 11:15 pm

At this time of year my EFM stack temperature (measured with a probe a few inches inside the flue pipe) usually reaches about 275F on a heat a call...when the weather gets colder and the boiler maintains a higher temperature (plus runs for longer periods of time) it will reach 300-310 degrees F.

Edit: My magnetic thermometer on the surface of the flue pipe usually indicates 180F during a long burn. Price tags and stickers are still on the pipe after three years. :)
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: How much do AA-130's and AHS S130's burn per heating season?

PostBy: gizmo On: Mon Nov 04, 2013 11:18 pm

I think I have seen 200 to 250 Degs. at least,
around 24" up from the top of the Boiler.
gizmo
 
Stoker Coal Boiler: AA-130
Coal Size/Type: Anthracite/Pea
Other Heating: NONE

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