I burn a lot of popple here (OWB), middle of the road for btu's for what's on my woodlot, it's very plentiful and handy so I don't pass it up; in fact, was out in the woods yesterday and an 18 incher had blown over within the last week or so due to the very wet ground conditions, that will get burned next season. However, when it's below zero I reach for the good stuff (hard maple, ironwood, yellow birch, oak). As someone else stated, it's awesome fuel for making maple syrup: fast and hot fire=quick boiling; my two favorite species for this are popple and basswood.
Oh, and popple is one of the top materials for sauna benches..........you can verify with your local oldtimers of Finnish descent. Found someone nearby who was willing to part with some 12" to 16" wide x 2" rough sawn popple he had cut off his farm many years ago....couple nights in the woodshop and had some dandy 10 footers for a double tier bench.
View attachment 374990