I've been thinking and reading about how to heat my house this coming year. Bought a Chappee C-28 boiler so that part is taken care of at the moment unless that AA130 falls into my lap.
Looking at a solar site yesterday got me to thinking about a storage tank for heat. What I saw was around 500 gallons of hot water with a coil heating the water and a coil pulling heat from it. Basically a large water tank heat reservoir/exchanger.
Their thinking was along the lines of you wouldn't need to fire your boiler so often. I can see where that may have a benefit to oil, NG, or LP but is there really a benefit with coal? I mean it heats so evenly. I guess if it's a warm day you could store that heat.
I'm going to build on this post but I'll leave it like this to see what everyone has to say.
The site, if anyone is interested, is http://www.slatevalleyboilers.com
under Heat Storage Tanks.
If it's not OK to give this info out please remove it and I apologize.