On a chilly, windy day last January I ran my hand around the window frames of our typical two-story home. Eight out of fourteen double-pane windows felt drafty, mostly those with condensation between the panes. The 5'h x 8'w living room window was one of them. Overall cost-wise, including utilities, does it make sense to only do window replacement as needed, or should we replace all of them now?
Is the money savings in my heating bill that different between double and triple pane windows?