Upgrading your furnace is probably the most effective way to improve your home’s energy efficiency and save on heating costs. New natural gas furnaces are technically advanced and up to 98% efficient! That means 98 cents of every dollar you spend on energy is used for heat. The older, standard-efficiency furnaces (pre-1987) were typically 60%-70% efficient.
If you’re building a new home, or it’s time to replace your existing furnace, consider high-efficiency. They have two heat exchangers to recover more heat from flue gases. They’re 90% efficient or greater, use outside air for combustion, and can be vented through an exterior wall – no need for a chimney. With a high-efficiency furnace, the higher your current energy bill, the greater your potential savings.