OK...here is the question. I bought a new Smoke Hollow propane with 2- 22,000 btu burners and have been trying to get the temp to 230. I tried 1 burner on low, I tried switching 1 burner off then turning the other on but, stays at 250. after reading a thread on SMF, it was suggested that I fill the water tray with pea gravel. It has been holding at 230 for almost 2 hours!!! Question......once the gravel gets to the temp from the burner, will the overall temp still stay at 230? I hope this does not sound stupid.....thanks for your help!!!