Kristian Ferrell
A boat blower is a centrifugal or in-line bilge blower that is used to remove fumes from the engine compartment. It is important to ensure that the blower is installed correctly, as blowing air into the engine compartment can have the opposite of the intended effect, sucking in fuel fumes rather than exhausting them.
| Characteristics | Values |
|---|---|
| Purpose | To remove fumes from the engine compartment |
| Installation | Centrifugal or in-line |
| Airflow | Sucks air out of the engine compartment |
| Safety | Should be sealed to prevent explosions |
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What You'll Learn
- The primary function of a boat blower is to remove fumes from the engine compartment
- A centrifugal blower is recommended by boat mechanics
- It is not necessary to leave the bilge blower on while refuelling the boat
- The boat's vent system is set up with four separate tubes
- The stbd intake side vanes are oriented so that air is rammed into it
The primary function of a boat blower is to remove fumes from the engine compartment
Boat blowers are designed to prevent explosions by removing gasoline fumes from the boat's engine compartment. Gasoline fumes are heavier than air, so they need to be sucked out rather than blown around, which would just spread them around the boat.
Some boat owners believe that leaving the blower on while refuelling will exhaust any gases that build up inside. However, this is not recommended as it can actually pull fuel fumes into the engine compartment.
A boat blower should be set up with sealed units to prevent explosions. The intake side vanes are oriented so that air is "rammed" into it, and the exhaust portside is designed to draw a slight vacuum. This ensures that fumes are removed from the engine compartment efficiently and safely.
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A centrifugal blower is recommended by boat mechanics
Centrifugal blowers are also known as 'squirrel cage' blowers. They are not in-line (axial) blowers, as the air does not go past or through the motor. Even if it were an axial motor, the motor would be sealed and explosion-proof.
The primary function of a boat blower is to remove fumes from the engine compartment. The stbd intake side vanes are oriented so that air is 'rammed' into it (facing forward), and the exhaust portside is designed to draw a slight vacuum (facing the stern). Each assembly has two openings for 4" tubing.
It is important to note that you should not turn on the blower while refuelling your boat, as this will do the opposite of what is intended. Since the blower sucks the air out of the engine compartment, the air inside the compartment is being replaced with the fumes of the fuel in the air while refuelling. This means it is actually more possible that you are pulling in fuel fumes.
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It is not necessary to leave the bilge blower on while refuelling the boat
The primary function of a boat blower is to remove fumes from the engine compartment. Many people think it is a good idea to leave the bilge blower on while they refuel the boat, believing that this will exhaust any gases that build up inside the bilge. However, this is not necessary and may even be counterproductive.
When the bilge blower is on, it sucks the air out of the engine compartment, replacing it with the air inside the compartment, which may contain fuel fumes. This means that, rather than removing fumes, you could be pulling in more of them.
Boat blowers are designed to pull the fumes from the bottom of the bilge and dump them overboard. Gasoline fumes are heavier than air, so blowing them around will not blow them outside the boat. Instead, you will be spreading them all over the boat.
A sealed unit means that, if all is well, there is very little chance of explosion.
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The boat's vent system is set up with four separate tubes
The primary function of a boat blower is to remove fumes from the engine compartment. It does this by sucking the air out of the engine compartment and exhausting any gases that build up inside.
While some people think it is a good idea to leave the bilge blower on while refuelling the boat, this is not recommended. Since the blower is sucking the air out of the engine compartment, the air inside the compartment is being replaced with the fumes of the fuel in the air while refuelling. This could actually increase the possibility of pulling in fuel fumes.
Boat blowers can be centrifugal or in-line. Centrifugal blowers, also known as squirrel cage or radial blowers, do not allow air to pass through the motor. Even if they did, the motor would be sealed and explosion-proof. In-line blowers are also known as axial blowers.
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The stbd intake side vanes are oriented so that air is rammed into it
The primary function of a boat blower is to remove fumes from the engine compartment. The stbd intake side vanes are oriented so that air is 'rammed' into it, facing forward. This is so that the exhaust portside can draw a slight vacuum, facing the stern. Each assembly has two openings for 4" tubing. The unit should be sealed so that there is very little chance of explosion.
Boat blowers can be centrifugal or in-line. Centrifugal blowers are squirrel cage (radial) and in-line blowers are axial. The air does not go past or through the motor. Even if it were an axial motor, the motor would be sealed and explosion-proof.
Many people think it is a good idea to leave the bilge blower on while they refuel the boat, but this does the opposite of what is intended. The blower sucks the air out of the engine compartment, replacing it with the fumes of the fuel in the air.
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Frequently asked questions
A boat blower is a centrifugal or in-line bilge blower that removes fumes from the engine compartment.
A boat blower sucks the air out of the engine compartment, removing any fumes that have built up inside.
A boat blower helps to prevent explosions by removing gasoline fumes, which are heavier than air, from the engine compartment.
You should use a boat blower when there are fumes in the engine compartment that need to be removed. However, you should not use a boat blower while refuelling your boat, as this can actually pull in fuel fumes.
The type of boat blower you should install depends on your boat and your boat mechanic's recommendation. Centrifugal blowers are often recommended, but in-line bilge blowers can also work well.
