The Harman P35I pellet insert is 35,000 Btu’s heating up to 1500 Sq Ft. This Preowned unit is designed to be installed into an existing masonry fireplace and be vented up your existing chimney. This is an auto light, runs off the Harman built in Room sensing technology and has an ash pan. This insert has been gone through to ensure proper operation and comes with a 1 year parts warranty from date of pick up or install. This unit can be seen at our Rutland location and is available now.