It's best to start your Peppers inside about 8 weeks before the last frost and at a temperature of 75-80 degrees F. They can be sown outdoors in early summer when the soil remains above 65 degrees F, but indoor germination is recommended.
How to start:
If you're using a potting mix, plant at a depth of 4 times the size of the seed (below a ¼ inch of soil). You can also use Jiffy Pots and Strips — Jiffy Pots are constructed of lightweight, biodegradable peat moss, so as the roots develop, they will grow right through the Jiffy Pot walls and into the garden soil.
If the room where you have your seeds isn't at least 70 degrees F, you can use a seedling heat mat to raise the temperature. As the first leaves appear, however, lower the temperature a bit, to 70-75 degrees F.
Fluorescent light for around 14 to 16 hours a day is also ideal for the fastest growth. You will want to keep the seedlings just a few inches below the light so they don't "stretch" and get "leggy". If you don't have strong artificial light, a sunny window will work, too.
Germination should occur in 10-15 days and fruit should appear in 50-80 days from sowing, depending on the variety.