We have a 7 candle holder which is located in the fireplace. These candles are just the correct size for the glass holders. I burn 1, 3, 5 or all at once, depending how cold it is in the morning. The psychological effect works and it's excellent for keeping heat inside the home, since NO damper is opened. At Halloween, we put the entire candelabra contraption in the bay window. The only suggestion is that more of these be ready for sale at the store as I purchased the last two sets. The price is also better than at my big box food store.