New guy here.
This site looks like the place for the most knowledge amassed for coal topics.
I'm currently struggling to make a decision of what boiler size to get. I have a 1 year old modular house with the most insulation in the sidewalls and ceilings we could get. And the windows are supposed to be energy rated also.
1800 square feet on 1st story- radiant under the floor.
700 sq ft on 2nd story- base board and toe kick heater. 28ft of base board length total
900 square foot bonus room (cape like in structure)UNFINISHED with NO HEAT- just used as attic style storage. Will probably not be finished off with heat zone in my lifetime.
Full basement~ 1800 square feet. The basement heat was never turned due to enough heat from the first story and the boiler set up kept it steady at 65 degrees. It is unfinished- mostly project area and storage.
Here is the story. Put in an EXPENSIVE radiant set up with Buderus boiler. Burned 800 gallons from 9/29/09 through 4/1/10 but had to fill tank again due to heating hot water with indirect tank off boiler. So the oil tank is more than 3/4 full today but at a cost of $2900 since 9/29/09. We had some issues with window seals which have been correected but cost us some money- they WHISTLED with air leaks at first. All of them!
I would like to get a coal boiler to save hard earned cash. The wife is on board with the project
! The closest 2 coal dealers to where we live carry Keystoker for their boilers. I have a neighbor that has one that raves about it.
Finally the question. What size to get? Most I have talked to at each dealer and the Keystoker company have said the K-6 would be fine. I live on a wind driven hill that is assaulted with frequent 20- 40 mph winds and can be brutal cold wind chill in winter. However the actual temps aren't crazy cold- we're in the finger lakes region and temps can be higher than most other areas beacuase of the lakes- just alot more wind. We rarely see Zero on the thermometer more than 5 times per winter but that damn wind! One guy questioned the K-6 size stating if we finished off all areas the k-6 would not be big enough in the worst weather. What I don't know is if the K-8 would be too much if the weather was mild.
Please help a confused newbie.