Mechanicals · definition
Replacing fossil-fuel HVAC/water heating with heat pumps. Often paired with a panel/service upgrade and may qualify for IRA tax credits and rebates.
Source: ENERGY STAR — ENERGY STAR Home Upgrade
Where this term lands on a Columbus budget
The cost pages carry the current local ranges, and the guides explain what moves them. A published range becomes a project number only after someone looks at the site.