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: If your current system works well, check the data sticker on the unit for its BTU and efficiency ratings to ensure a perfect match for your new purchase. 2. Choose Your Fuel Source

Here is how to navigate the process and what to keep in mind. 1. Know Your Numbers (BTUs and AFUE) buy furnace direct

: Ideal for homes without access to natural gas or propane, though they require fuel delivery and storage tank maintenance. 3. Shopping the Top Brands : If your current system works well, check

: This is the efficiency score. A furnace with a 95% AFUE converts 95% of its fuel into usable heat. Modern high-efficiency units often hit 90% or higher, significantly lowering monthly utility bills. significantly lowering monthly utility bills.