Being the administrator here, I tend to read a LOT of posts. Also, I get quite a few emails and private messages.
I hear everything from "Live and Learn" (folks who are sorry they bought a pellet stove) to "I heat my whole house with one bag of pellets a day"...I often hear (in New England) "The dealer told me most folks burn 2 tons, but at this rate I am going to burn 4-5".
Honestly, I don't really put much stock in ANY of those viewpoints. We have been using SCIENCE for many hundreds (even thousands) of years to "prove" things, and "My stove heats the house with two logs for 14 hours" (that was a wood stove line I started hearing in 1979) just does not cut it any more!
The proper way to decide on (and use, etc.) a heating system is to do your research BEFORE you purchase, not afterwards. If a person is doing something for $$ alone, do a REAL comparison, not only against the existing Central Heat, but against a freestanding gas,lp,wood or even oil (yes, there are very efficient oil space heaters)..... figure everything in - from the interest on the money, to the current and future service costs. Figure in the gas, hassle, etc...
But that is only one part of the equation. There is a large "green" factor in the move to Pellets, and some people enjoy hauling the bags, loading, cleaning, etc.....but it still should be thought about. Will you enjoy it as much in 3 years, in 5 years? Will you enjoy it even if oil comes down and pellets go up?
Of course, none of this stuff matters if an appliance is being bought for recreational, luxury, gadget and MANY other reasons. But it certainly DOES matter when some folks are spending 4K for a total installation and borrowing it on their cc with the idea they will save a lot of money (and they live in a big drafty farm house in New England).
Where the weather is temperate it can be a whole different story. I have friends in Ca. who heat their entire house with a 12,000 BTU floor mounted gas heater. But read a post like this from an ex-wood burner in VT, and you will get my drift:
https://www.hearth.com/talk/threads/11975/
Bottom line: I don't want to talk people into or out of a biomass stove, but I do not want folks just blindly following the crowds and dealers....do your homework and make a educated decision. "My neighbor has one and saves a lot" is not proven science nor research!