I've been testing all available brands of pellets since we installed our Enviro EF3 in Sept.I couldn,tr believe the difference in Heat output mostly.As for Ash, i don,t really care how much ash if its exceptional heat to make up for it. Pellets tried here have been
Cozy Comfy(Kent Bld Prod)Rated --T for Terrible--2 inces long average,High Ash,Low Heat,Price $5.99/Bag Temp = 168 F @ Output tubes
Eastern Embers(Shaw Brick) High Ash,Low Heat,consistant size-----------------------------Price $5.50/bag Temp = 175 F @ Output tubes
LG granules (Quebec) Low Ash,Very Good heat output,consistant size of 3/4 inch Price $5.00/Bag Temp = 285 F @ output tubes
Lignetics-Hardwood-(Canadian Tire corp) Very High Ash,Great heat output, size 1/2"Pellet--Price $4.99/Bag Temp = 368 F @ output tubes
EnergeX-(Quebec-PA)--By Far My favorite,Lowest Ash,2nd Higest heat,Small Pellets 3/8"----Price $5.99/Bag Temp = 355 F @ output tubes
Hope this helps someone decide what to Order,I suggest buying min 3 Bags/Brand before commiting to winters worth of Pellets