I'm not sure why you're looking for an alternative to kerosene. My grandmother had a house full of kerosene lamps when I was growing up in the 50s and 60s, and I'm not aware that there were dangers other than the usual with flames.

Back in the 70s or 80s, there was a big trend for kerosene heaters in homes, and several of my friends had them. I can't remember if they even vented them. Just a big stove on the floor in the middle of the room with a pan of water to provide some humidity as it evaporated.

Are you having fumes from the lamps? There were no fumes in Grandma's house, but it was built in the 20s or 30s, so there was no insulation and it was definitely not air tight. I don't recall fumes from the kerosene stoves people had for home heating in the 70s or whenever.