I’m not trying to criticize but I just did a fuel cost comparison on coalpail.com and it looks like heating with wood pellets is more expensive than natural gas or propane and several time higher than geothermal. Even if your getting pellets for $200 a ton.
If natural gas was an option I would be all over it. If we’re looking at the same comparison table propane is about 1.5x the cost of pellets. And with the cost for a geothermal system it would take years to recoup the savings, however I have been considering trying one of the ductless mini split units for my garage. It’s about 1200sq feet (half size of house) so if that performed well I would definitely consider it. House was all electric baseboard when I bought it, not a fan... Also added a Carolina wood burning fireplace insert years ago that performs very well. Three heating options that range from free to hold onto your wallet.. Not for everyone but it works one way or another.