True or False? A High Efficiency gas furnace requires a chimney for the removal of exhaust gas.

High-efficiency gas furnaces typically do not require a traditional chimney for the removal of exhaust gases. Instead, they utilize a PVC pipe system to vent combustion gases outside. This is because high-efficiency models operate at much lower exhaust temperatures, allowing for this alternative venting method. Additionally, the design of these furnaces often employs a sealed combustion chamber, which draws air from outside for combustion, rather than using indoor air, making the traditional chimney unnecessary.

In contrast, older, less efficient furnaces often relied on a chimney to vent hot exhaust gases safely away from the property. Therefore, stating that a high-efficiency gas furnace does not need a chimney aligns with industry standards and practices regarding modern HVAC systems.