This is significantly too little information for us to be able to answer the question. 
This is not something that is supported at all.
Since you are not using ember-cli, the answer to your actual question is 100% dependent on whatever you are using to build / bundle your application. That build tool would need to be updated to look for .hbs files throughout the codebase and compile them (using the template compiler that ships with your version of Ember) and ensure they end up in the proper resolvable location.