New CIBSE heat-pump guide connects survey, design and handover

What CIBSE announced

On 12 October 2026, CIBSE announced its Domestic Heat Pump Design and Installation Guide, developed with the Heat Pump Association UK. The publication addresses domestic air-to-water systems, covering the process from the initial survey through installation, commissioning and handover. It complements CIBSE’s existing domestic heating design guidance.

This is a guidance publication. Its launch does not itself change a project’s statutory obligations or establish that a particular installation is compliant.

Engin’s project commentary

When a contractor receives an early heating design, identify which decisions are supported by current project information. A plant schedule alone leaves unanswered questions about the rooms being served, retained emitters, distribution routes and the assumptions behind equipment selection.

For a refurbishment, agree how gaps in existing-system information will be resolved. Mark items awaiting survey or calculation clearly, and record which procurement decisions depend on them. If the building layout or fabric changes, ask the designer to review the affected assumptions before the package is finalised.

Carry those decisions into the construction information. Agree who coordinates the equipment location, access, electrical interfaces and controls, then identify the records the commissioning team will need. Each revision should make the changed decision understandable to the people installing and checking the system.

A clearer contractor-design brief

Bring the current drawings, heating calculations and unresolved survey questions together before agreeing the next design stage. Engin can support the M&E design development and construction interfaces within an agreed appointment, informed by contractor and site experience.