Powerful light weight portable heater

We actually did not buy this heater, we won it last year on the Coleman website.
It sat in the box for the first year.
This year we decided to use it in our fish house.
For those of you that do not know what a fish house is, it is a little shack on the lake that we fish in when the lake is frozen over. We drill holes in the lake with an ice auger and we sit and shiver and catch fish :)
We live in Minnesota on a Lake, and built our first fish house, the kids 11 and 15 love to fish so we bought the 16 ounce propane tanks and the D size batteries in bulk and let them take it out to the lake.
Now for us transporting anything to the lake is a big job, as we have 52 stairs to get there!
The boys love it! It not only keeps the fish house warm but it is light weight and has a carry handle on the backside.
The heater has an easy ignition and within minutes the heater is pumping out heat. The blower runs on 2 D size batteries and they last for at least 20 hours. The propane tanks seems to last for over 8 hours.
Last week our heater broke on the family truck, so we put the Coleman heater inside the truck and it not only kept the truck warm while driving but it also defrosted the windows, the temperature that day was below zero,
I always thought I would only use the heater if we had a power outage in our home and needed an alternate heat source. Well, I know have that and so much more.
This is an excellent heater. It warms small spaces very quickly.