How to Change post title tag from H3 to H1 ?

//see if we have to cut the title and if we have the title lenght in the panel for ex: td_module_6__title_excerpt
if ($cut_at != ”) {
//cut at the hard coded size
$buffy .= td_util::excerpt($this->title, $cut_at, ‘show_shortcodes’);

} else {
$current_module_class = get_class($this);

//see if we have a default setting for this module, and if so only apply it if we don’t get other things form theme panel.
if (td_api_module::_helper_check_excerpt_title($current_module_class)) {
$db_title_excerpt = td_util::get_option($current_module_class . ‘_title_excerpt’);
if ($db_title_excerpt != ”) {
//cut from the database settings
$buffy .= td_util::excerpt($this->title, $db_title_excerpt, ‘show_shortcodes’);
} else {
//cut at the default size
$module_api = td_api_module::get_by_id($current_module_class);
$buffy .= td_util::excerpt($this->title, $module_api[‘excerpt_title’], ‘show_shortcodes’);
}
} else {
/**
* no $cut_at provided and no setting in td_config -> return the full title
* @see td_global::$modules_list
*/
$buffy .= $this->title;
}