General info: Looking to get current attic ventilator fan replaced. The attic is about 1400 sq. ft. Current attic ventilation fan is a foot from the ridge of the roof. Live in USA.

Handyman wants: To install two 1500 CFM fans. Two 120 volt 20amp dedicated circuits, one for each fan. He wants to install the second fan 4 feet away from the current fan. He stated that the attic ventilator fan would need to be replaced within 6 years.

My questions: Would two fans be better than one fan? Would I need two 120 volt circuits to run two fans? Is there an attic ventilator that has a user replaceable fan?

Thank you in advance for any help.

  • BearOfaTime@lemm.ee
    4·
    6 months ago

    240v for an attic fan? Wtf?

    Yea, fire this “handyman”. 240 in the US is for high load devices, like AC, electric stove (electric heat is a direct short), electric water heater.

    A fan draws a very small amount of current - less than 5 amps at 120v.

    I have a small portable blower (this uses a compressor wheel, so draws more current than a fan), and it’s rated for 5 amps.