Q We live in an older house that isn’t well insulated. The furnace is old, too. Which problem do we deal with first?


A It’s usually better NOT to replace the furnace before upgrading insulation levels. Recommended insulation levels for different parts of the house can be found at the ENERGY STAR® website. If you are able to upgrade your home’s insulation according to these recommendations, there’s a good chance that you’ll be able to replace your old furnace with a smaller unit, since your HVAC system won’t have to work as hard to maintain comfortable indoor temperatures.