oil nozzle size--effect on consumption
How much difference does the size of an oil furnace's nozzle make on the amount of oil used? Or are there too many other factors to consider? Very old furnace was replaced in 2006 with an Armstrong; oil consumption difference is less than I expected. One contractor said it could be due to the fact that the wrong nozzle was installed? Home is 1300-sq.-ft. brick ranch in NC. Thanks for any help!