The new Weil-McLain GV90+ gas boiler offers state-of-the-art operation and efficiency. This cast-iron, Energy Star rated boiler vents with PVC and includes an easy-to-use propane conversion kit. The four different GV90+ models accommodate several venting options. With efficiency ratings over 90%, the GV90+ qualifies for many utility company rebates and lowers gas bills. These efficiency ratings, along with sections made from recycled metals, make the GV90+ very environmentally-friendly. Visit SupplyHouse.com for more boilers and Weil-McLain products.