Coboy254 , I wear chainsaw pants , I do have 2 pair , 1 has more stretchy, breathable fabric making them cooler in the summer , the other pair I have are heavier , more Cordura type nylon so better in the winter . Yes , the light ones are still hot in the summer but my mom always said "Schitt don't melt in the rain , suck it up" lol
I take the btu charts with a grain of salt , there is a big difference in spruce for example , red spruce with big fat growth rings might be a little better than pine while white spruce grown in fields which are full of large branches so all the wood is full of knots is as good as red maple and then the black spruce that took 100 years to grow to 6" in diameter will burn like sugar maple for heat , make less ash but won't last as long .
Hmmm , big saws ??? , I've used my 2100 so little I'm thinking of selling .