Whats the current best VENT FAN?
Tell me there is some unknown company who makes decent quality fans!?!? My buddy has a fantastic fan that is 1 year old and hes having to modify it just to work again. After the 1st motor died. I ...
Forum Discussion
I hear ya it's clear higher rpm allows the fan to produce higher static pressure. As you wrote much earlier in the thread for the purpose of pushing or sucking air through filters and ducts a fan with higher static is what you need. Makes sense.
While the thread is called roof vent it turns out I'm ditching that idea.
Bought a 80mm for a truck interior vent. Wanted to compare static pressure of Silverstone and Noctua. SS makes a powerful 80mm with high static but it's sleeve bearing and pulled 4w. To much for my little 1.5w panel. (Will double check...its old and only 4x10 inches big)
Also looked at the 120mm size to use on my air conditioning ducts. Again as I learned from this thread higher static is ideal.
Generally speaking it seems radiator fans are high static while case cooling is more cfm flow. Although the positive pressure is something I'm seeing with case fans where you want both pressure and high cfm.
Noctua rocks at both, while drawing little power. Thanks again landyacht for introducing them.
Ended up buying the pwm dimmer. 80mm 2200rpm and 120mm 3000rpm. So stoked they come Thursday.
A good point LY made was how low can you turn down the blower fan versus something like the 140mm 3k. I'm going test those mammer jammers. Been thinking of ways to do this.
I need to buy rigid 4" ducting regardless. Will make a testing tube out of it. Hook each fan to it with an amp meter. On the exit side put a wind meter.
I will compare everything. How much flow for how many watts. Even blade rpm I have a lot of measuring toys from playing with rc planes.
I think the blower will blow away the 140mm in top end air flow. Which I won't even use often. Curious to see what performs better trying to move air through about 4 feet of 4" ducting with an auto air filter attached.
Actually I will have to try testing everything with and without air filter restriction.
Noise is also a concern. Got to think a basic decibel app exists for a cell phone. Don't need accuracy just need consistency. For all the stuff really. Glue the wind meter so it never changes.
The 140mm box fan will need a small cardboard box to transition to 4" round on both sides. The design of that could really hurt the 140mm.
Unless the 4"blower won't run slow enough on PWM. Can't wait to find out.
While the thread is called roof vent it turns out I'm ditching that idea.
Bought a 80mm for a truck interior vent. Wanted to compare static pressure of Silverstone and Noctua. SS makes a powerful 80mm with high static but it's sleeve bearing and pulled 4w. To much for my little 1.5w panel. (Will double check...its old and only 4x10 inches big)
Also looked at the 120mm size to use on my air conditioning ducts. Again as I learned from this thread higher static is ideal.
Generally speaking it seems radiator fans are high static while case cooling is more cfm flow. Although the positive pressure is something I'm seeing with case fans where you want both pressure and high cfm.
Noctua rocks at both, while drawing little power. Thanks again landyacht for introducing them.
Ended up buying the pwm dimmer. 80mm 2200rpm and 120mm 3000rpm. So stoked they come Thursday.
A good point LY made was how low can you turn down the blower fan versus something like the 140mm 3k. I'm going test those mammer jammers. Been thinking of ways to do this.
I need to buy rigid 4" ducting regardless. Will make a testing tube out of it. Hook each fan to it with an amp meter. On the exit side put a wind meter.
I will compare everything. How much flow for how many watts. Even blade rpm I have a lot of measuring toys from playing with rc planes.
I think the blower will blow away the 140mm in top end air flow. Which I won't even use often. Curious to see what performs better trying to move air through about 4 feet of 4" ducting with an auto air filter attached.
Actually I will have to try testing everything with and without air filter restriction.
Noise is also a concern. Got to think a basic decibel app exists for a cell phone. Don't need accuracy just need consistency. For all the stuff really. Glue the wind meter so it never changes.
The 140mm box fan will need a small cardboard box to transition to 4" round on both sides. The design of that could really hurt the 140mm.
Unless the 4"blower won't run slow enough on PWM. Can't wait to find out.
