minor cleanup
minor cleanup

leorohr/simpleheat,CapeSepias/simpleheat,leorohr/simpleheat,perc-solutions/simpleheat,kyroskoh/simpleheat,jingjinjingjin/simpleheat,CapeSepias/simpleheat,perc-solutions/simpleheat,jingjinjingjin/simpleheat,mourner/simpleheat,kyroskoh/simpleheat