Do you want to edit .htaccess file of your WordPress blog? Here is the solution to edit your .htaccess file. If you want to redirect your WordPress feed to Feedburner, and do not want to use any WordPress plugins and themes function. You can use your .htaccess file to redirect your WordPress feed to FeedBurner.
Have you setup your feed with FeedBurner for your WordPress blog? If yes, still you are not fully integrated with your FeedBurner feed, and now you keep two feeds for the same content. One is your existing WordPress post feed, and the second is your newly created FeedBurner feed.
Do you have self hosted WordPress blogs? Are you planning to monetize your feeds via Google Adsense? The perfect solutions of these questions are to setup FeedBurner feed for your WordPress blog. If you purchase a self hosted WordPress blog, then your WordPress blog has inbuilt feeds for your posts and comments,