Reduce energy consumption associated with the heating and cooling system.
Note: Both the space heating and the space cooling equipmentThe equipment used for cooling room air in a building for human comfort. must meet the requirements of this credit. If only one type of equipment qualifies, then half the points should be taken. Homes built either without air-conditioning or without heating should be modeled under EA 1, using the default (minimum efficiency allowed) in both the reference and the rated homes.
6.1 Good HVAC design and installation. Meet each of the following requirements:
6.2 High-efficiency HVAC (2 points). Design and install HVAC equipment that is better than the equipment required by the ENERGY STAR Builder Option Package (Table 1).
6.3 Very high-efficiency HVAC (maximum 4 points). Design and install HVAC equipment that is substantially better than the equipment required by the ENERGY STAR Builder Option Package (Table 1). Any piping designed as part of a heat pump system to carry water that is well above (or below) the thermostatic temperature settings in the home must have R-4 insulation or greater.
Note: The maximum of 4 points is available only if a heat pump is installed. Furnace and boiler systems can earn a maximum of 3 points.
* Furnace with low electric energy use.
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