You can buy them everywhere. A single barrel kit is in the $60-70 renge and the double barrel kit is in the $150-200 range. Set a box fan behind it and warm up the whole shop. When the barrel wears thin, just unbolt the pieces and bolt thm on a new barrel. They work great. BIL had a single barrel stove in his garage for years. Your insurance company might not like it though. double barrel stove kit - Google Shopping