Oil Fired Water Heater Efficiency

Commercial oil fired water heater a water heater that uses oil for fuel has an input rate of greater than 30 5 kw 105 000 btu h and that has a vr of at least 76 l 20 us gallons.
Oil fired water heater efficiency. Manufactured on or after january 1 2018. Is used to rate the efficiency of gas fired natural gas or oil fired water heaters. Buy the right size. Oil fired water heaters are a popular way to heat hot water because they are less expensive than indirect fired water heaters and have more capacity than a heating coil 30 gallons vs.
Household oil fired water heater a water heater that uses oil for fuel has an input rate of less than or equal to 30 5 kw 105 000 btu h and that has a v r of at least 76 l 20 us gallons. The ef is determined assuming a standard hot water use profile with fixed inlet and outlet water temperatures. Consult with an experienced plumber to estimate the hot water demands in your home and be sure to hire a licensed professional to install a new one. Gas and oil fired water heaters tanked and tankless use energy factor or ef.
The higher the ef the higher the efficiency.