Last week during an ice storm I was hit with a power surge.It was so large it took out my surge protector on my house electrical panel, killed the power supply on my computer and burned the controll board for my Enviro Maxx..My computor had a surge protector on it and it got past that one as well.I didnt have one on the stove but I have one now.I just need to order a new board.$325.00, $150.00 to fixi computer,$400.00 for house panel surge protector,$100.00 for 3 new surge protectors for all the other things plus 13% tax.There goes all the saving for the year by installing the pellet stove.Now I am back to heating with oil because its still cold here in Ontario.NOT HAPPY