Our house is 1970s vintage, built (or rather poured) after Cyclone Tracy swept through Darwin. Houses built post the cyclone pretty much have to be concrete bunkers, and ours is no different. The house still has the original DM&C fans that were built in (from what I understand - wiring was placed in the formwork, and concrete poured in, over and around the wiring. But some of these fans have either failed, or are in the process of doing so. We are looking to replace a couple of fans, and depending on performance replace more in a year or two, but it's so confusing as to what we need to buy. First off, being Darwin we need fans that can move massive amounts of air. I was considering going the DC fan route, as they seem to be cheaper in the long run, especially if you use them a lot (and they are always on at full blast in whichever room people are currently in). However, I have read that these are generally controlled by a remote which I think would require extra wiring - which would mean having an ugly wiring job. Secondly (although I may have misunderstood this) the remote receiver is often placed in the ceiling void (which we don't have - because concrete). Thirdly I think there may also be an issue with raked ceilings some of ours go from 2M - 4.5M or higher - all the current fans are on extension rods, and I can't work out which current fans are viable. Budget is around $300 per fan (with another $150 aside for installation). So, any comments / recommendations?