traderfjp wrote:It still works great and doesn't leak
I'm trying to figure out if it's worth changing out the boiler to a high efficiency model
I would think you are looking at about $4K for a good boiler, another $1.5 for taxes freight and install maybe. That is a lot of steam (around 25 tons of coal
1. Do nothing, it ain't broke.........
2. Find a nice used dual fuel (coal/oil) and replace the existing boiler and sell your stove. Cost could run $1000-3000 I'm guessing, could go high/low from there depending on your "coal personality".