The furnace and the A/C must have been placed in service, or installed, in 2023, and you need the costs separated to take both credits. A 30% credit, up to a maximum of $1,200, may be allowed for:
- Insulation material or air sealing material or systems,
- Exterior doors,
- Windows and skylights,
- Central air conditioners,
- Natural gas, propane or oil water heaters,
- Natural gas, propane or oil furnaces or hot water boilers,
- Improvements or replacement of panelboards, subpanelboards, branch circuits or feeders, and
- Home energy audits.
The limits for each category of these items that qualify for a credit is discussed later in Section A—Qualified Energy Efficiency Improvements.
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