Montigo RP620 Commercial-grade, single-sided residential power-vent gas fireplace series from Montigo. Read More Gas, Montigo, Single-sided, Frameless, Power-ventRosemary CostelloeOctober 3, 2016montigo, r series, rp620, power vent, power vented, single side, single sided, one side, one sided, double glass, cool glass, commercial grade