Having chosen a good location for your efficient gas fireplace, you should ensure that it is installed by a qualified technician. In most areas, a special installation permit is required before you begin, as well as an inspection once the work is completed. Check with the dealer, your municipality or your gas utility for details. You should also inform your insurance company.
Some dealers offer full installation services. Independent, qualified contractors also install this equipment. Make sure to get several estimates. When you are comparing the estimates, take into account the contractor's knowledge and experience, as well as the materials to be used.
Estimates should include the following:
Ask each contractor for the names of homeowners for whom they have installed similar fireplaces, and contact these references. It is also a good idea to check with the Better Business Bureau to see if complaints have been filed on any of the companies you are considering.
Finally, do not hesitate to ask the installer for a clear explanation of any aspect of the work before, during or after the installation of your gas fireplace.
Source: Natural Resources Canada (NRCan) - Office of Energy Efficiency