Upon arrival, I found the customers Amana gas package unit not heating properly due to completely plugged air filters, causing the system to go off on a high heat safety. He had two washable filters in the floor. I sent an estimate to wash the filters. The estimate was approved. After washing the filters I installed them. The house was 72°. I bumped it up to 75° and it was satisfied at 75° within 10 minutes. Your system is heating properly at this time .