Improving a Suburban Furnace
SF20 in my case. It heats OK but it's just so **** noisy. Has anybody modified the furnace to install a quieter fan? Less of an amp draw would be nice too. We don't boondock enough to justif...
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Add additional ducting for more airflow. Fan does not work as hard, should draw less power per BTU moved, and the RV will heat faster to give less run time.
