Hey all, I have a natural gas pack thats about 3 years old (York) and when the temperature around here drops below freezing, the heat stops working. THe unit will cycle but only cool/cold air blows through the vents. After several weeks of trial and error, I have concluded that the problem lies in the gas line that runs out from under the crawlspace to the outside gas pack. Now we're only talking approximately 3-4 feet of gas line total with a pressure regulator on it that is open to the elements and I believe it is here that we have the problem.
WHat happens is that when the line freezes and my gas stops, I go outside (in the freezing weather) and use a hair dryer on the regulator and on the 3-4 ft of line. After about 5 minutes, the heat kicks back on and will usually last the rest of the evening/morning. Now I originally thought oh just a little moisture or water in the regulator but its been happening for a few months now, so if a little moisture just happened to find its way into the regulator, it should have evaporated by now I'm thinking. But the problem still exists, So I dont think the regulator is bad, I think i simply have moisture in the gas line from somewhere or somehow. I covered the regulator with a rubber cap, flannel shirt, and trash bag to see if insulating it with that would help but it still froze last night (22-25 F), and as soon as I used the hair dryer it fixed it. So at this point I'm pretty sure its either the remaining gas line freezing, or the regulator is still freezing up.
It's getting ready to be the teen's this week and I was hoping to fix this before it got there. What can cause moisture to be in a natural gas line and who do i call to fix this issue, Gas company, plumber, heating/air ?
Will insulating the lines with some of that black foam from Home Depot prevent the line from freezing?
What other remedy could i employ to prevent the line from freezing?