The XFyre modulating, condensing boiler is available in sizes from 300 to 850 MBtu. The boiler achieves 94 percent thermal efficiency at full fire, up to 99 percent part load. A direct spark ignition ...
THE XTHERM VERTICAL MODULATING CONDENSING BOILER is offered in boiler or water heater/swimming pool models in three sizes ranging from 1.0 MMBTUH to 2.0 MMBTUH. The boiler is available in a choice of ...
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