new heater in cottage

[RUGMAN]

I am planning in installing heat in my currently unheated cottage on the lake. looking at the Rinnari propane vent heater vs Mitsubishi Duckless heating and cooling . Both salesman say they are great, Looking for firsthand experience with heating with either one. Also looked at Hardie siding and a composite called Everlast. The ever last was interesting in that it was solid color with no need to paint.