The Mighty Therm2® boiler/volume water heater offers seven models applicable for hydronic systems, volume water heat applications, and as commercial-sized pool heaters. The fan-assisted, low-NOx unit is ideal for either new construction or replacement, says the company. The system is available for use with natural gas or liquid propane fuels and in sizes from 500 to 2,000 MBtuh. Features include two-stage firing, stainless steel burners, and hot-surface ignition. The system is shipped with a flow switch, temperature pressure gauge, mounted and wired pump, multiple gas valve and pressure regulators, intake air filter, air pressure switch, burner site glass, and pump time delay.

Laars Heating Systems Co., 20 Industrial Way, Rochester, NH 03867; 800-900-9276; 800-559-1583 (fax);

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