The cause is not known. There is also secondary Raynaud's, which is caused by injuries, other diseases, or certain medicines. People in colder climates are more likely to develop Raynaud's. It is also more common in women, people with a family history, and those over age 30.
Gas Fireplace Average Costs. The actual cost to install a gas fireplace may vary depending on your location, the product selected, complexity of the installation process, additional accessories purchased, and other options. Top vented gas fireplace inserts cost $750 to $3,000, and installation adds another $500 to $1,000.
1 Ventless (also called vent-free or unvented) gas fireplaces don't need a chimney or vent, and are either zero clearance (right against a wall) or close clearance (a few inches away). 2  They cost about $400-$1,500 plus installation of the gas lines and any desired mantle or surround. They cost about $400-$1,500 plus installation of the gas lines and any desired mantle or surround. 2  Some states do not allow the use of ventless fireplaces or restrict their use. 3  Some ventless models require you to keep a window open while using the fireplace.