Our obligation under this warranty is limited to repair or replacement, at our option, of the product during the warranty period. The extent of any liability of Lion Exterior Products, Inc., under this warranty is limited to repair or replacement. This warranty does not cover normal wear of parts, damage resulting from any of the following: negligent use or misuse of the product, use of improper fuel/gas supply, use contrary to operating instructions, or alteration by any person other that our factory service center. The warranty period is not extended by such repair or replacement.