I have a good friend that has a Heatilator TD46B1 fireplace in his house. It is installed in a very large great room with a Monassen vent free log set in it. His family is complaining that they can feel virtually no heat even when the log set is on high with the damper closed. We have discussed the possibility of installing either a wood or gas insert into this fireplace. His wife has vetoed the wood option. Are there any ideas on a good gas alternative that will fit this fireplace. I have installed several wood inserts and am well versed on installing gas piping but I do not know the first thing about gas inserts. Any help would be greatly appreciated, Jim