The Pacific Cook Stove is the most popular model ideal for boats 30-40'. Has an attractive appearance that will enhance the interior of any vessel. Requires 5" diameter chimney partsMinimum 6' or maximum 8' of chimney is required, a straight run with no elbows work bestChimneys 6ft or longer we highly recommend a barometric damperPermanent fresh air vent needed in area of the unitCreates a dry heat to dry out moisture inside the vesselMost popular size, will fit most stove cut outsIn sailboat installations, this unit must face fore or aft, if facing port or starboard is desired, the valve would need to be mounted to the side of the unit so the gravity fed valve won't starve the burner on heels up to 15°12v draft assist fan included (can be converted to 24v and 32v). Used for start up and draft assistance on high fireValve is calibrated for diesel but can be re-calibrated for kerosene or stove oil1 turn hot water coil for 5-10 gal or a 2 turn hot water coil for 15-20 gal can be installed for water heating