A good household iron is adequate for quiltmaking. There are many brands available with a wide range of prices. Some quiltmakers do not recommend steam pressing because it can stretch pieces out of shape.
If you have a sewing room and can leave your iron set up all the time, unplug it when not in use. Set it back and away from the edge of the ironing surface so it won't get knocked over by accident.
Take good care of your iron. Clean it often as residue may build up on the ironing surface, making it difficult to glide across fabrics smoothly.
If your iron has a Teflon surface it is easier to keep clean. Common sticking problems involve buildup from iron-on interfacings, fusibles and other meltable materials. Commercial solutions are available for cleaning irons. Abrasive cleaners will scratch its surface and fill the steam holes with debris. Read the instructions that come with your iron for recommended methods and cleaning products.
Water from your tap (whether it be from a well or from a city supply) contains chemicals and minerals that will build up inside and outside the holes on the surface of your iron. Use distilled or rain water. Most manufacturers do not recommend leaving water in irons for long periods of time as it may cause rusting. Rust could stain your projects and clothing when you iron.