Warm up to our Wood-burning Inserts Collection. Heat your home naturally. There’s something especially satisfying about a wood-burning fire. From the gathering and chopping of the wood to the scent, this natural fuel is tough to beat. And talk about bringing the heat. Available in almost any size imaginable, each wood-burning insert from IronStrike does just that. The Montlake™ insert, for example, boasts our exclusive Thermal Fin Technology (TFT™), which synthesizes and maximizes heat output faster than anything else on the market.