The Laars Magna-Therm is a 95% thermal efficiency modulating-condensing boiler or volume water heater available in 2, 3 and 4 million Btu/h sizes. It offers a 5:1 turndown, small footprint, slim vertical design with removable top section, a stainless-steel heat exchanger and multiple voltage options. A color touchscreen displays results in quick setup and diagnostics. Up to eight MagnaTherms can be controlled in a cascading boiler bank. The system has a sealed condensate trap that does not need to be primed at startup and can accommodate up to 100’ of vent.