When we put fans in @8 years ago, we went with 52" sweep (diameter) fans in the bedrooms, but for whatever reason, we opted for the smaller 44" sweep fan in the TV room. Since day one it has bugged me that the 44" fan looks too small for the room, and it's a very expensive fan to pull down & replace. I see that the company sells the replacement blades for $40/set of three, and I figured swapping in a set of the larger blades would be the perfect solution.
I sent an email to the company to make sure there would be no problem, and they responded that while the larger blades will fit physically and both the 44" and the 52" fans appear to be identical, they actually have two different motors, and thus the company doesn't recommend it as the smaller fan may burn out "over time" if it is run in conjunction with the larger blades. So much for that idea...or is the company merely trying to sell me a new fan?
When I checked the company's website, it lists specs for my smaller fan motor of 10 watts and 0.19 amps at low speed, and 43 watts and 0.40 amps at high speed. The corresponding specs for the larger fan motor are 12 watts/0.23 amps and 63 watts/0.52 amps.
As we never run these fans on high speed anyway, do you think there will actually be an appreciable difference running the 52" sweep blades with the motor intended for 44" sweep blades at low speed? Thanks for weighing in.