Every boiler comes with a digital aquastat, flow sensor, air eliminator and 50 gallon tank We guarantee the best prices for an outdoor wood boiler, gasifier or parts and accessories!! Our units are now over built to last many many years. Many safety features standard. New insulated tongue and groove doors that seal tight and prevent the seal from falling off. Acrylic stucco comes standard on cement fiber board that covers are insulation but can have a number of options like log cabin, field stone or slate. These units will never rust or build up creosote because we use a heat conducting refractory cement with millions of stainless steel needles in them that is casted over brazed copper heat sinks that surround entire unit. Units are very efficient and made to last for decades and cost much less than comparable steel units that will rust or welds break! Many happy customers! We also build true gasification boilers that can burn almost anything and never smoke. You can use the hydronic heat and easily hook up to existing forced air furnace and domestic hot water. Can also hook up to pools and driveways to melt ice.These units are efficient! Burns logs also along with stall waste wood chips, pellets corn or coal. We have the biggest fire boxes around for gasification!! We warranty our units. Call me anytime at 616 232 0373, 616 551 0176, or visit our website at http://www.heissheaters.com

Have a Great day from all of us over here at Heiss Heaters :)