![]() Necessary cookies are absolutely essential for the website to function properly. Larger boats with larger compartments must have more ventilation–the figure is 15 square inches of opening for each cubic foot of compartment. Boats must have a ventilation system that is adequate for the size space the system is used for. Intakes are usually pointed forward, exhausts usually face aft. Where are the intakes and exhausts on a boat? Even if your boat is older, it still must conform to USCG minimum ventilation levels, and may require a bilge blower to satisfy those guidelines. The USCG stipulates the use of a mechanical ventilation system for all non- open boats built after Jthat run on gasoline. How many ventilator ducts do you need in a boat?Īt least two ventilator ducts for the purpose of efficiently ventilating every closed compartment that contains a gasoline engine and every closed compartment containing a gasoline tank, except those having permanently installed tanks vented outside the boat and containing no unprotected electrical devices.ĭo you need a bilge blower on a gasoline boat? Quick Answer: Eq-27 inboard gasoline boats built after july 31st, 1980 must have what type of ventilation system? What type of ventilation system does a inboard gasoline boat have? The USCG stipulates the use of a mechanical ventilation system for all non- open boats built after Jthat run on gasoline. What kind of ventilation system does an inboard gasoline boat have? ![]() Close all doors, windows, ports and hatches.Extinguish all open flames, including pilot lights.Ensure all persons not involved in fuellingthe craft are ashore.What is the amount of fuel needed for a trip? A good rule of thumb regarding the amount of fuel needed for a trip is to ration one-third for the trip out, one-third for the return and one-third as reserve. What is the basic guideline for estimating amount of fuel? Powered ventilation systems are required on boats built after 1982 with installed fuel tanks or an enclosed engine. In a powered ventilation system, one or more powered blowers does the work of circulating air through the ducts. Which boats are required to have powered ventilation systems? 4 Where are the intakes and exhausts on a boat?.3 How many ventilator ducts do you need in a boat?.1 Which boats are required to have powered ventilation systems?.Whether your boat is subject to regulations or not, bilge blowers make good sense. No bilge blower will rid the compartment of spilled fuel, which will continue to emit vapors. Before switching it on, however, rely on one of the most sensitive odor-detectors you have - your nose. The minimum recommended time you should run the blower to ventilate the bilge is four minutes. However great care must be taken that the outside air intake is free of CO and other fumes. The best plan is usually to have two blowers, one to blow air out and the other to suck outside air into the engine space. The size you need is determined by the volume of your engine compartment (see below). Both types evacuate air very efficiently, and are available in sizes which handle 100-250 c.f.m. The type you choose will depend on the space available and on how you plan to mount it. There are continuous use bilge blowers available and if you want this (and it can be a very good idea) be sure you get one designed for this and wire it properly.īilge blowers are available to move air in two ways - some units feature a squirrel cage configuration, while others favor a "tunnel", or "in-line" design which utilizes a small fan. If you run them continuously you may burn them up or even start a fire. They are designed to be run for a short while only. However, most bilge blowers are NOT designed for continuous use. Bilge blower units are designed and constructed specifically for their life in the trenches - electrical components are "ignition protected" to prevent sparking and causing the explosion that they are installed to avert, and the units are built to withstand overheating and corrosion. Venting your bilge of potentially lethal gas fumes is no job for a jury rig. Also, even if your boat is diesel it should have blowers for extra safety and ventilation of fumes. The Coast Guard stipulates the use of a mechanical ventilation system for all non-open type boats built after Jwhich run on gasoline. A bilge blower is important not only because the USCG may require it, but also because your life may depend on it.
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