ASHP guide
Sizing radiators for heat pump projects starts with survey quality
Most radiator sizing problems are input problems first: room dimensions, emitter evidence, and assumptions that are never made explicit.
Inputs that move radiator sizing results
- Room dimensions and exposed wall context captured cleanly.
- Emitter type, size, and condition recorded in a way design teams can trust.
- Window, door, and construction assumptions kept reviewable.
- Exceptions and inaccessible areas flagged instead of guessed.
Typical reasons projects get redesigned
- Emitter records missing from the survey pack.
- Assumptions left in surveyor memory instead of the handoff file.
- Heat loss inputs and emitter context living in separate places.