Install a new Weil McLain Series-3 CGa-3 gas Boiler (67 MBH) Boiler installation includes - New Expansion Tank. - New Circulator Pump. - New Water Shutoff Valves. - New Spirovent Air Eliminator. - New Water Auto Feeder. - New Backflow Preventer. - New Low Water Cutoff. - New Directional Valve (if needed). - Remove and haul away old boiler.