Wow. Thanks to all for a response and advice! I'm very excited to find folks with the desire to burn a cheaper fuel harvested by American miners from our land (in my case PA) instead of buying fuel from the ayatollah!
I will need a new coil since the one I removed was bad (got recycled now). I currently have a Burnham RV6 boiler (4 years old) and a high efficiency gas hot water tank. With balanced billing, we pay almost $3000 a year for natural gas (heat and hot water) with the thermostat set at 69 from Nov to May. That's as low as the Boss, I mean my lovely wife will let me set it. I can get rice coal for $125 or so a ton in Pottsville, but I'd have to go get it which wouldn't be a problem since I have a truck and access to a dump trailer. Plus, I go up there fairly regularly due working fairly close and having a rental property up there. So gentlemen, here's some questions that I'm sure you can help me with: Approx how many tons would it take to heat our old 3500 sq ft 107 year old brick house? I know there are a lot of variables, but it does have replacement windows. Also, could you tell me a good source for the patch plate for the coil? Could you please tell me where I can get more info on the round 4" coils? Finally, I want to keep my gas boiler as a ready back-up in case I am away or if I deploy and my wife refuses to learn how to maintain the stoker. Your thoughts?
Finally, I suggested Coaledsweat's comment on passing 1/2 of the savings to my wife. I think she might go for it!