Aluminum baseboard vs. cast iron

I’m considering replacing my old aluminum baseboard heaters (hot water heat) with cast iron baseboards – partly for looks and hopefully for some efficiency. I haven’t priced it out yet, but I’m wondering if the cast irons really will be more efficient and will be worth the switch. Something like this by slant/fin http://www.slantfin.com/product-rhino-cast.html. Anyone have experience doing this?

By kimmc |