Berkeley BESO heat pumps: account for every conditioned area

Questions covered in this guide

Local considerations

Berkeley’s BESO heat-pump measure links coverage of all conditioned areas with permit and final-inspection evidence. A coverage worksheet helps the homeowner identify omissions and connect the proposed equipment to the actual verification record.

The worksheet turns Berkeley’s all-conditioned-area criterion into a room-to-system coverage check and ties the result to permit closeout evidence. It prevents a partial heat-pump installation from being assumed to satisfy the measure.

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Check the whole-area requirement

Berkeley’s BESO heat-pump measure specifies heating for all conditioned areas of the building or unit and identifies permit and approved final-inspection evidence. Confirm the program’s applicability and the proposed measure with the responsible city contact or project professional.

Describe the actual spaces to be served

Verify Berkeley jurisdiction and gather a current floor plan or room list. Ask the designer to identify which spaces are conditioned and how the proposed system serves them. Do not assume that adding one heat pump to a main room resolves the measure for the whole unit. Leave equipment sizing and distribution design to the qualified professional rather than allocating capacity by room count.

Prepare a coverage-and-evidence worksheet

List each conditioned area, the proposed system serving it, the designer’s reference, and any unresolved coverage question. Keep building-wide and individual-unit scope clearly separated where multiple units are involved. Add rows for the permit description, installed-equipment record, required verification, and approved final inspection. Ask the applicant how the permit documents will identify the intended BESO measure. The worksheet should reveal missing answers before installation, not declare that the project has earned program credit.

Close the gap between installation and verification

Have the project team review the completed coverage sheet against the installed scope and provide the actual final documents. If a room or unit was omitted or the design changed, ask how that affects the measure before relying on it in a transaction or compliance record. The national HVAC calculator does not determine BESO eligibility or price Berkeley verification work. Use a complete system proposal and documented city outcome as the basis for the decision, with any remaining program questions clearly identified.

Sources and supported claims

Berkeley’s BESO heat-pump HVAC measure requires electric heat-pump heating for all conditioned areas of the building or unit.
Source ↗ · place · Checked 2026-10-12

The measure identifies a permit and approved final inspection as verification documents.
Source ↗ · place · Checked 2026-10-12