smcFanControl lets the user set a minimum speed for built-in fans. It allows you to increase your minimum fan speed to make your Intel Mac run cooler. In order to not damage your machine, smcFanControl does not let you set a minimum speed to a value below Apple's defaults.
Make sure you have both Homebrew and Cask installed. You'll find intructions to install both tools on their respective websites.
After installing Homebrew and Cask, run:
$ brew install --cask smcfancontrol
After that you'll be able to use Spotlight to launch smcFanControl normally. :-)
Requirements: Intel Mac / OS X 10.7 or higher
Compiled version: https://www.eidac.de/smcfancontrol/smcfancontrol_2_6.zip
FAQ / More info: Found in project under "Ressources/*.lproj/F.A.Q.rtf" or included in above .zip
License: GPL 2