ak-guy
Senior Member
I have a Planar 44d heater on the way that I will be installing it in my Allweather. When I got the boat it had a very old non functional Webasto that I removed. The Allweather is only 26' and basically one space inside. Wheelhouse - setees - V berth not even an enclosed head. The heater will be installed close to where the old Webasto was using the same exhaust thru hull and in the wheelhouse area. The former heater was simply installed with combustion air and heater air both being drawn from inside the boat. Reading online about these type of heaters I find a lot of conflicting information concerning intake air for combustion and heating. I know that official instructions say that combustion air must not be taken from accommodation space but perhaps they are mostly concerned with tight truck cabs. The Allweather has plenty of designed-in ventilation so I am not too worried about the heater combustion air intake, should I be? I mostly want to have the interior air drying effects these heaters are known for. Should I draw combustion air from outside? How about heater air?