Hearth & Home 3-20-6866 Differential Switch Type_Fire Starters 8 that makes it great

8 that makes it great

Do not allow the pump to run dry

Use the rise for the vertical aspect and the run for the horizontal aspect

so it doesn't burn off through a hot afternoon the way unstabilized chlorine does

Hearth & Home 3-20-6866 Differential Switch Type_Fire Starters 8 that makes it greatHearth & Home 3 20 6866 Differential Switch Overview The Hearth & Home Differential Switch (Part Number 3 20 6866) is a crucial pressure sensitive component used in select pellet and gas stove models to monitor and regulate proper airflow and exhaust operation. This OEM part ensures that the combustion and venting systems are functioning safely by detecting differences in air pressure and enabling ignition only under the correct operating conditions.