Making a page refresh periodically.

I have a need to add a page to a Backdrop website that includes a view of some inputs submitted by other users and will automatically refresh in a browser every 20 seconds or so.

I have found a way of doing this by including some code in a custom version of the page.tpl.php file that I have added to my theme's templates. However, I suspect there must be a better way of achieving this. My code adds a refresh meta tag into the head of the page.

<?php $node = $GLOBALS['_GET']['q'];
if ($node == 'node/1079') {
  ?>
  <meta http-equiv="refresh" content="20">
  <?php
}
print backdrop_get_html_head(); ?>

I should be very interested to hear of alternative ways of achieving this.