Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Go to the Technical Manual section of this site and see if there’s a TM for your heater.
Download it for free and follow the troubleshooting instructions.
I don’t own one of those so I’m no help.