Limitations
A model match is useful evidence, not a site inspection. BecSpec deliberately leaves unknown installation facts unknown.
Eligibility is not availability
A model can remain on a regulator register after it is no longer actively marketed. CER eligibility, state-program listing, manufacturer support and retail availability can change independently.
No inferred drop-in replacement
Capacity alone cannot establish replacement compatibility. Tank or unit dimensions, pipe connection positions, electrical circuit requirements, clearances, drainage and site constraints can all make a superficially similar model unsuitable.
Safety events can be configuration-specific
A recall may apply only to units sold in a particular date range, to a particular control-panel configuration, or to a component of a split system. The checker preserves those qualifiers rather than turning every name match into a blanket recall flag.
Technical fields are still being enriched
Government registers are strong for identity and scheme status but do not consistently carry the dimensions, electrical, plumbing, noise and operating-envelope data needed for confident retrofit matching. Those fields are being added only where source evidence supports them.