Proper installation of a high efficiency gas furnace requires attention to many details and interconnecting systems: heating capacity (sizing), consideration for duct distribution systems, gas piping, vent systems, provision for combustion air, flue gas condensate disposal, electrical connection requirements, provision for forced-air cooling (as required), air filtering equipment, and humidification requirements.

A home energy audit is a good way to evaluate the performance of the thermal envelope and heating and cooling system, and identify the improvements that can be made to reduce energy costs. Common recommended energy-efficiency measures include sealing air leaks, adding insulation to the attic, and upgrading the heating and cooling system to higher efficiency equipment. For homes with gas-fired warm air furnaces, this could mean replacing an existing 70% to 80% Annual Fuel Utilization Efficiency (AFUE) furnace with a high efficiency furnace in the 90% to 98% AFUE range.

Jim Hall HVAC can help you lower your energy costs, protect the environment and ensure your comfort.