By: LsFarm On: Sun Feb 19, 2006 11:03 am
It was -4* the last two nights. On Friday night I heaped the Bituminous on the fire, about a 16-18" deep pile. 4 hours later I was loosing water temp. The fire had burn down to the mature stage the coal level was down to about 7-8".
It was VERY windy though, so the house was pulling a lot of heat out of the boiler. The combustion fan ran continously to maintain 140-150* water.
Last night I was able to experiment with Anthracite coal. I aquired two 40# bags of Anthracite coal. [Thanks Davemich!!] I added one bag over the top of the mature Bituminous coal bed at about 10PM, then at midnight I added the other 40#. The coal bed was the same depth as the night before, about 16-18".
I set the alarm for 0430, and noticed when I got out of bed that the heat was doing pretty good in the house. In the boiler's building, the combustion blower was off, and I had 170* water and the coal level had only dropped maybe 3" . I had a full bed of individual coals [not bridged] and a 2" blue flame above the coal, this was with natural draft.
At 0800 the coal had burn down another few inches and the blower was running but I still had 150* water, the blower shut off while I was inspecting the fire.
So I'm pretty impressed by the Anthracite, the problem is the cost. I have to balance my very cheap but problematic Bituminous against the cost of the bagged coal. I may use both, the bituminous when I don't need an all night high heat fire for really cold weather.
I may make a pilgramage to NEPA to get a big truck load of coal, and share it with Dave. I have to see about bulk vs bagged prices and convienence.
Greg L.
Pretty impressed by the anthracite vs my lousy Bituminous.