Load balancing EJB calls from one server to many

Hi Team;

We run JBoss EAP 7.0.3 in standalone mode in a three tier architecture (web,app and database server).

The web server is configured with outbound-socket-binding, remoting:3.'s remote-outbound-connection using http and a ejb security realm to the appserver for EJB's.

How would one go about having it connecting two app servers (in essence scaling the "app tier" horisontally ? Is that a config in the standalone xml or do I need to load balance the http connection using something else?