There are four gas inserts that have taken the hearth industry by storm. They’re not the cheapest. They’re just the best. The Regency LRI6E and LRI4E have a traditional look to them while the HRI6E and HRI4E are the new modern look that has become so popular. These units have a lifetime warranty on the fire box and are the only unit that has a heat exchanger built into the frame of the unit. They also come standard with electronic ignition. As of January 1st, 2016 they will qualify for up to $500.00 in rebates and tax credits. All of these units are on display at Portland Fireplace Shop.