Raytherm® Residentials Atmospheric 42, 66, 90, 135, 180 MBTU input Up to 84% AFUE
Hi Delta® Residentials Sealed combustion-direct vent 122, 162, 202 MBTUH input 84% AFUE
XPak® Wall Hung Residentials Sealed combustion-direct vent 87 and 119.5 MBTUH input up to 92.6% AFUE