Whisk together oil and honey. Add eggs and beat. Stir in bananas and vanilla.
Whisk together flours, salt and cinnamon. Add dry ingredients to wet and stir to combine. Dissolve baking soda in hot water. Blend in the hot water/baking soda.
Pour into greased loaf pan. Bake for 55-60 min., til toothpick inserted in center comes out clean. If tops brown too fast, loosely cover with foil. Remove from oven and cool in pan for 10 min., then remove to wire rack to cool completely.