Of course! Please provide the lines you'd like me to modify, and I'll help you rephrase them to remove any duplicated semantics.
IMRPOVED SMOKELESS BURN: Features an extended bezel on the top to help direct airflow, promoting a more efficient smokeless burn so you can spend more time relaxing and less time worrying
DURABLE CONSTRUCTION: Heavy-duty steel construction with a high-temperature black powder-coated finish and double-wall design improves airflow while withstanding tough outdoor use
SMOKELESS PATIO FIRE PIT: Offers a convenient way to enjoy a fire with friends and family on your patio
EASIER CLEAN UP: Newly improved design with a fully removable lift-out ash catch and grate insert with handles to simplify clean up
DUAL FUEL AND SPACIOUS: Burns standard firewood, wood pellets, or a combination to generate significant heat, and the wide rectangle size allows you to load more wood to extend your time by the fire