I am looking to add some air circulation to my boat. I need to move the warm air from the main cabin into the bow sleeping area. I had thought about just adding a little cage fan (like the ones used for keeping your windshield clear) but the ones I have found seem cheap and flimsy. What do you think about adding running some PVC pipe along the gunnel inside the boat and using one of these:http://www.lslproducts.com/IL-DSPage.html as the fan. They are two speed, quiet and move a good amount of air. They have the PVC fittings on them and I think with some clever plumbing I could draw warm air from very near my heater (wallas cook top/heater) and have it blow out up in the bow.
Anyone have any other ideas for ducting? The wife is not sold on the idea of an Espar yet, however I have plans to put on in or take the Hydronic unit out of my truck and find a way to make it work in my boat..