The solar can heater will work - in fact, it's kind of hard to get most any solar air collector NOT to work
Should be a fun and interesting experience
FWIW. Been there, done that, and will never again attempt to separate double pane glass into 2 single pane sheets.
Double pane glass WILL, technically, hold the heat in longer, but the reality is very different than the theory
Rule #1; Heat always moves towards the cold, always
and when the sun goes down the Dbl Pane glass provides little value in the end
Just use the Sgl pane glass, and if looking to extend the hours of use, consider this;
My very best solar air heater was a simple open channel setup with unraveled steel wool spray painted black and laid throughout the channels
In fact, still using it to this day - keeps my unfinished basement nice and comfy
Under the steel wool I used a 1/2" copper pipe configuration with a back drain and filled with motor oil (regret the motor oil but not the setup)
The surface area of all that unraveled steel wool is IMMENSE, and the air flow sucks up every bit of it.
Plus, the filled copper pipe holds the heat far, far longer than the Dbl pane glass
and the result is I pump out warm air long after the sun goes down
