biotech research canton ohio/edenpure heaters review: bought 3/ 2 broke down last winter had 2 yr's 1

I BOUGHT 3 EDANPURE MODEL 1000 - XL LAST WINTER 2 BROKE DOWN AND I CAN'T FIND ANYONE THAT WORKS ON THEM. THE EDENPURE THAT BOB VILLA SELLS IS SAME AND IS UNDER WARRENTY FOR 3 YR'S. AND THE ENDENPURE I BOUGHT FROM THE RESEARCH COMPANY IN OHIO IS ONLY GOOD FOR 1 YR ! WHY THEY ARE THE SAME ITEM'S NOT HAPPY PAID OVER $347.00 EACH FOR THEM DON'T WANT TO THROW THEM AWAY NEED FIXED!