bilge fan

If I mount the bilge blower in reverse will it supply enough heat for winter use? Anyone with experience with this heater method? Carbon monoxide issues? Thanks in advance

So, as I am looking at dealing with this heat for the summer my question becomes: Do I try the bilge fan and see if it makes riding, especially through water, comfortable or do I just use the heat shielding? Now, I hunt all through the fall and pick back up for spring gobbler. Still plan to...