Ideal conditions for these are,, loamless well drained compost, bright filtered light, moderate to high humidity,
a temperature of 64-75 deg f.
For them to flower in winter, you need the maximum light available, {you may need to use grow lights}.
Feed from early to late summer with a high potash and phosphate, liquid fertilizer every 2 weeks, repot at least once a year, keeping to more or less the same pot size, do not overpot, Derek.

That's just what I'm trying to do too Lellis, my African violet has just finished flowering, so it's enjoying a rest right now. I think I may need to change the compost, but I'm leaving that till spring. I keep mine on the kitchen window sill, in a small pot and stood on damp pebbles. I use water from a filter to keep them damp. If you use tap water, leave it for an hour to let the chlorine gas escape.

Mines on the kitchen windowsill too and water it when I think it needs it, I,m amazed really as its been in flower for months now......

Mine are on a north windowsill and flower nearly all the time. They haven't been repotted for ages but they do get a very occasional dose of liquid feed, and are always watered from the bottom.

Thats a good point Stera, mines in a shallow dish and I water from the bottom too, helps to stop the leaves going soft and mouldy

So good luck with that Lellis!