I find that many folks are happy with what they have in the form of a stove or something else that burns wood,coal or pellets.
I also find that they are loading many times a day ,3-4 hours on average.
Some are running stoves to try to heat the whole home and struggling...there is a better way.
Look at you stove or furnace.
Does it have a massive heat exchanger or is it just a firebox?
Does it have a firebox loaded with thick dense firebrick for thermal mass?
Does it have a way to cycle the burn rate and a draft regulator to elevate the draft speed?
Lastly and most importantly, does it have a way to burn off the smoke making those extra btus available to you?
I know 150,000,000 people went to some sort of alternative way to heat last year with oil over $140 a barrel.
Some had old stoves or furnaces installed that they got back into service ,other bought something they saw at a local FleetFarm ....others went for aesthetics from a stove shoppe.
Does your furnace or stove do what you really need it to do?

