This church had a leaking oil tank in the beginning stages of winter and had natural gas already serving the building for other equipment so they decided to switch from oil to high-efficiency natural gas furnaces. We Installed a twinned together set of Carrier Infinity Gas 96% efficient 2-stage Furnaces to replace the oil furnace. We designed and installed custom duct transitions to adapt the current duct to accept the 2 High Efficiency gas furnaces and removed the oil tank and recycled all of the old systems. The system Qualified for the Central Hudson Natural gas rebates as well.