We've had a few of them for a long time. One thing I learned about them is that the gas cartridge have an expiration date on them and it really does mean something. Try using an old gas cartridge and they don't work worth a flip.

If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land. 2 Chronicles 7:14