They are probably the best brand. You may have to contact them.I just don't know if all electric fans are treated equal regarding duty cycle if needed to run for long periods.
I looked into Spal fans. For the price theyre asking I wish I knew they'd include the duty cycle next to the color of plastic in the specifications
The best place for elec fans is....in the box they come in.
i know. i know. it's been belt drive for 60 years. I do not want to do it either as it was fine the way it was, but the need to fabricate something to get driven off the crankshaft in the front, now the fan blades swing down in the way.If you are bound and determined to use electric fans, look at the Black Magic fans By Flex a Lite. They ain't cheap, but they MOVE some air.
Yes. I don't know of any that are not.Are any of them rated continuous duty?