Supply of "good"
pellets has always been a problem. Most of the best suppliers export to other EU countries (More profit) mainly Switzerland, France and Germany and as such they order hundreds of tons at a time. This then leaves smaller suppliers of which the grade is rather suspect (Grade is THE MOST
important thing in a pellet boiler). Erato make their own pellets in Haskovo but back it up with extra from Balkonstroy in Razlog which they had to do last year due to lack of wood manufacturing.
Last year due to the sharp fall in wood products especially furniture the raw material (Offcuts and sawdust) was in such a short supply that they all started to make pellets out of bark, which actually makes the worst pellets you can buy. Balkonstroy stopped production in January due to no materials and it became very hard to find them.
The best pellets I have ever bought (No bark, all from the centre wood) in BG were Erato, then Balkonstroy, then a small Italian manufacturer in Razlog.
Moral of the story. Order early & collect it all. I have known suppliers to cancel orders and refund money to small orders if supplies are desperate and bigger orders are priority.
Remember....Cheap pellets may be a good idea and cost saving, but with most things in life you get what you pay for.....If you do buy cheap ensure they are of quality.
As for boilers. Italian ones are best, but Czech Republic are very close and you can buy direct from the factory (I have). In BG the boiler I wanted was €3000, straight from the Czech factory it was €1000.