11 Feb 2017 #21 Q QBhoy Well-Known Member Joined 11 Mar 2016 Messages 2,620 Visit site A D4 should be plenty enough for a 30ft boat. Especially if it has the closable outlets fitted, so you can really get the heat where you want it and concentrate the flow on the areas you want it.
A D4 should be plenty enough for a 30ft boat. Especially if it has the closable outlets fitted, so you can really get the heat where you want it and concentrate the flow on the areas you want it.
