Letters: Big Oil's days are numbered

As a young married man, now 75, we purchased our first home with a coal-fired (by hand) furnace. Our second was also heated with coal; however, we had a stoker we would fill every two or three days, pulling out clunkers daily.

Those days are gone as coal’s days are numbered, even as a generating power for all power companies.

Many homes are also heated with fuel oil. Two of my uncles owned fuel oil companies in Duluth, now closed. At $4.18 per gallon with a 265-gallon tank, the cost to fill would be over $1,100.

With all heat forms being costly, natural gas, propane and solar seem affordable....