Upgrade Options

A list of valid upgrade options for Rewiring America's Residential Electrification Model and Health Impacts of Electrification APIs.

baseline

Baseline building with no upgrades applied.

combination__all_electric__hvac_seer24_hspf13__weatherization

A whole-home upgrade including a high efficiency air source heat pump for the home’s HVAC system, basic weatherization, a heat pump water heater, a heat pump dryer, and an induction stove. HVAC heat pump is SEER 24, HSPF 13 for ducted systems; SEER 29.3, HSPF 14 for ductless systems, heat pump water heater is UEF 3.35-3.45, and heat pump dryer is Combined Energy Factor (CEF) 5.2. Additional details can be found in measure package 9 (on page 9) of this document.

combination__hvac_seer18_hspf10__weatherization

A medium-efficiency heat pump upgrade for the home's HVAC system, plus a basic weatherization upgrade. The heat pump is SEER 18, HSPF 10 for ducted systems; SEER 18, HSPF 10.5 for ductless systems. The nominal capacity is sized equal to the larger of heating/cooling design loads, and the heating and cooling are modeled without setpoint setbacks. The basic weatherization component of this upgrade includes attic floor insulation, air sealing, duct sealing, and drill-and-fill insulation. Attic floor insulation levels are upgraded for compliance with IECC-Residential 2021 and range from R-30 to R-60 depending on climate zone. Attic floor insulation only applies to dwelling units with vented attics. Air sealing is performed to reduce ACH50 by 30%, duct sealing is performed to reduce duct leakage to 10%, and a drill-and-fill insulation level of R-13 is applied to uninsulated wood stud walls. Additional details can be found in measure package 1 (on page 4) of this document.

dryer__electric_resistance

Electric resistance dryer.

dryer__heat_pump_cef5.2

Heat pump dryer with CEF of 5.2.

hvac__heat_pump_seer15_hspf9

A relatively-low efficiency air source heat pump upgrade for the home’s HVAC system. Heat pump is SEER 15, HSPF 9 for both ducted and ductless systems.Additional details can be found in measure package 3 (on page 5) of this document.

hvac__heat_pump_seer18_hspf10

A medium-efficiency heat pump upgrade for the home's HVAC system. SEER 18, HSPF 10 for ducted systems; SEER 18, HSPF 10.5 for ductless systems. The nominal capacity is sized equal to the larger of heating/cooling design loads, and the heating and cooling are modeled without setpoint setbacks.

hvac__heat_pump_seer24_hspf13

A high efficiency air source heat pump upgrade for the home’s HVAC system. Heat pump is SEER 24, HSPF 13 for ducted systems; SEER 29.3, HSPF 14 for ductless systems. Additional details can be found in measure package 4 (on page 6) of this document.

water_heater__heat_pump_uef3.35

A heat pump water heater with Uniform Energy Factor (UEF) 3.35 or 3.45. Additional details can be found in measure package 6 (on page 8) of this document.

weatherization__insulation_air_duct_sealing

A basic weatherization upgrade for the home. Measures include attic floor insulation, air sealing, duct sealing, and drill-and-fill insulation. Attic floor insulation levels are upgraded for compliance with IECC-Residential 2021 and range from R-30 to R-60 depending on climate zone. Attic floor insulation only applies to dwelling units with vented attics. Air sealing is performed to reduce ACH50 by 30%, duct sealing is performed to reduce duct leakage to 10%, and a drill-and-fill insulation level of R-13 is applied to uninsulated wood stud walls. Additional details can be found in measure package 1 (on page 4) of this document.