Sparkler indeed and a dangerous one for kids unattended. It looked like a catherine wheel at night, making a loud whooshing sound as it blazed. The can would get glowing red hot. I remember my brother once started a small field fire when he set his glowing can down in the grass. Those were the days.
Soon after that my folks got an oil fired boiler and they used that for about ten years before moving to the new house they built. The furnace came with us to the new house, but there was also a fireplace that they put an insert in during the early 70's with the oil embargo. That insert worked for years but probably it was last burned in the late 1980's. I put a new wood stove in this year because I was sick of worrying about ice storms. One of the smarter ways I've ever spent money.