A yellow flame usually indicates a lack of oxygen or a dirty pilot orifice

Featuring a rugged brass body and cover

This blower wheel is precision-manufactured to eliminate the vibration and mechanical stress that often lead to premature motor failure

or excessive heat from restricted airflow

Watts 0123837 Valve 340155-7024 A yellow flame usually indicatesThe Watts 0123837 (Model LFEMVII 6400SS 115 10) is a high performance motorized ball valve designed for demanding commercial HVAC and light industrial applications. This 3 4 inch electrically actuated valve excels in hydronic zone control, steam space heating, and chilled water air conditioning systems. Engineered with a lead free copper silicon alloy body, it features a 316 stainless steel ball and stem for superior corrosion resistance and longevity