OPERATING TEMP IS 175 THATS JUST GETTING WARMED UP MINE SOMTIMES GETS TO 220 AND THATS SITING AT LIGHTS IT GOES DOWN WHEN YOU GO AGAIN ANYTHING LIKE 20 MORE OR HIGHER THEN YOU GOT A SERIOUS PROBLEM EITHER FANS NOT WORKING WHEN SUPPOSE TO OR WATER PUMP WENT OUT OR IS GOING OUT AND BELIEVE ME I KNOW I LIVE IN AZ