**Jerry** Jan 16, 2017 I live in Minnesota and I put your fuel system to the test over the weekend. I was ice fishing on a lake in north central, Minnesota and on Friday it was -20. I ran my Honda generator the majority of the day to include all night until Saturday 8AM. I have a CPAP machine which runs off of 110V and with the extended fuel system I didn’t have to go out during the night to refill the generator fuel tank. We are talking major cold and your fuel system worked flawlessly! Thank you for such a great product!!