The Dryair 2000-1200 is a high-performance heating unit for pumping and heating liquids such as glycol. It can be used for thawing floors, curing concrete, dehumidifying, heating various fluids and more. Model DRYAIR NG-2000-1200-SE-CSD-1. Capacity: 1,200,000 BTU. It operates on natural gas (or can be converted to propane). The pumping system runs on standard 230V 1Ph power. Chimney included. Both units work very well, but one has a crack in the manifold and leaks slightly. Price: only $7,500 for the fully functional unit and $4,500 for the one with the crack. Special price for both: $9,995