Ventless gas logs are a great way to reduce your energy needs for heating your house. This is not the company that you should buy them from, though. I bought a low-cost set of logs at Home Depot. Sure Heat's logs had pasty cement logs that crumbled easily and the knobs turned the opposite way so it was easy to shut off the pilot light. The spark igniter was flimsy. So, one of my log sets broke and sent them to Sure Heat Dec. 20th 2010. It is Feb 5th and even though Sure Heat admitted the logs were defective and promised to send me a new set I still do not have them. It is really cold this winter, too!
I think ventless gas logs are a great product. But Sure Heat products are NOT the ones to buy. I may never get my original or replacement logs back. Or maybe in summer.