Installing a fireplace may be difficult but there are a few helps along the way to make sure that you get the job done right the very first time. Carrying handles make it easier to handle the bulky fireplaces without damaging either the unit itself or the floor it may be resting on before the actual installation. Finishing templates may be available for your brand of fireplace that make installing facing and doors simpler. The templates are reusable so that you save money on multiple installations.
This will vary, somewhat, depending on the type of gas system you are installing, but please note that only a locally-licensed plumber or gas fitter should install any rigid gas fittings that lead to the appliance location. Once a typical 1/2" cast iron pipe stub has been run to the appliance location and the gas line has been pressure tested, a flexible gas line with the appropriate 1/2" female connection along with yellow gas thread tape is used to make the connection to the pipe stub. The appropriate connection on the opposite end of this flexible connector will be described in the literature for the gas log set or gas fireplace you are installing.
I need a replacement glass panel with frame for a G336N fireplace. Is this something you carry?
Per the manufacturer, this assembly has been discontinued and stock of the item is no longer available. My recommendation is to continue checking with other Majestic dealers to see if they may have this replacement still in stock. Another option would be to have a piece of heat tempered glass cut and installed into the existing frame, if you still have it on hand. I apologize that I cannot provide this item.