The Dimplex Professional Built-in 60" Box with Heat for CDFI1500-Pro provides a durable and stylish solution for integrating your Optimyst Pro cassette into a finished installation. Constructed from strong steel, this unit is built to support surrounding fireplace finishes while offering flexible design options. Use it as a single-sided fireplace with the included high-gloss backer panel, or remove the panel to convert it into a see-through design for double-sided viewing. To complete the see-through installation, simply add the optional rear glass pane (sold separately, GBF1500-GLASS). With its plug-in connection, the box delivers supplemental heat without the need for venting, gas lines, or chimneys—making installation quicker, easier, and more cost-effective. Designed for both residential and commercial projects, this 60" built-in box combines reliability, versatility, and modern functionality.