A study tested various biofuel blends in home heating furnaces and found that a 20% blend of waste vegetable oil (WVO) performed well and was the first biofuel to be cheaper than petroleum heating oil. Field tests of 20% WVO and soybean oil (SVO) blends found no issues after several months of use. Using less refined plant oils and waste oils reduces biofuel production costs and brings the prices below the petroleum barrier. Future studies are needed on long-term storage stability and delivery issues for biofuel heating to help establish local production in Connecticut.