i have a vista flame 100 , as the days are warming up outside the heat from our stove is getting a bit to much, we are constantly turning the stove off and on through out the day, there is a trim button on the control panel but i am not sure of its function, will this slow the feed rate down . we run the stove on the lowest setting through out the day. i am looking for some way to lower the heat output on the low setting, i have a enviro ef3 dial a flame in the basement and it is great just turn it down to what you want.. is there something i can change to lower heat output.