(and if you buy the wood, the pellets are of the same order of magnitude of price as the log, reduced to the effective heat unit).
is a very false statement, based on poorly done tests !!
Dry wood has strictly the same calorific value !!! (dried in the summer sun and brought in at night and kept dry like pellets, which finely divided repell moisture even faster, if in humid air like wood)
The price of logs in 1m (10 to 15 cubic meters) is 2 to 3 times lower than that of pellets, and the ratio is almost infinite if we make the effort to recover the free wood and heavy waste thrown everywhere, and which, only with those of my garden are in such quantity that I am obliged to throw like my neighbors (that it is enough to recover and to dry in the sun and to store in closed room, like the pellets to have the same calorific power).
The price difference is that of the work necessary for the preparation, the maximum profits, and also for the pellets the very high amortization of the investments of the pellet machines !!
In addition you are captive of the pellets which follow with a small difference the price of fuel oil or gas !!
Its price is fixed by what customers agree to pay, and therefore with the increasing demand, sawdust which becomes rare, the price of pellets is increasing !!
Beware of peremptory statements and fashions, by all and canvassers and pseudo pro and check, judge, for yourself with precision looking at the price, very variable depending on the supplier.