Hi! We bought our home (our first!) at the tail end of 2009. It has a fireplace that's gas, but we were thinking about changing over to a wood-burning fireplace. I have so many questions I hardly know where to start., so I am coming here and hoping those of you in the know will share a bit of your knowledge. 1. Is a gas fireplace cheaper to maintain than a wood-burning fireplace? (Our home has forced-air heating, but the furnace is over 30 years old. I am located in Colorado.) 2. If we were to switch over, does anyone have any idea what we can expect for cost/time/effort for the changeover? Is this a relatively simple thing to do, or is it an ordeal? 3. Were we to switch from gas to wood, is there anything special we would need to do with our chimney? 4. How often do those of you with wood burning fireplaces have a chimney sweep do their thing? Thanks in advance for your input!