hts & htc is http tunneling server and client application.
You tunnel the ssh traffic with http encapsulated. That means the ssh traffic now looks like normal web traffic, which is very nice because in some place like school and workplace, the only kind of outgoing traffic allowed is web, and the bloody firewall blocks the rest, ssh, pop3, file sharing you name it.
Unless they implement IDS or L7 firewall, you should be able to ssh your home server without any problem