Question.....has anyone ever put a bilge blower into the ducting work of your on board heater?
Here is what I have - a Webasto coolent heater connected to a red dot air ex-changer. I have an outboard engine therefor this is how I heat the cabin while running or for that matter - anytime. This is a Seasport explorer. The problem is the red dot air ex-changer is a bit anemic and does not have enough air flow through the duct work to keep the wind shield fog free. My thought is to place inline a bilge blower to the duct work that leads to the window defroster. My concern is how it will effect the red dot when the bilge blower is on as well as when it is off.