Our evidence hierarchy
- Manufacturer manuals and technical documents. We use model-specific documents for dimensions, electrical specifications, operating limits, included parts and maintenance instructions.
- Current UK retailer information. We check price, stock status, UK plug/version, warranty representation, replacement parts and delivery restrictions.
- Independent measurements and long-term owner evidence. We separate measured evidence from subjective reports and look for repeated patterns rather than isolated comments.
- Our calculations. We show formulas and assumptions for running costs, cost per litre, replacement costs and sizing estimates.
What we score
Does it suit the stated tank dimensions, load and use case?
Purchase price, energy, consumables and expected replacement items.
UK warranty, spare parts, documentation and retailer availability.
Useful adjustment, integration and safeguards—not feature count alone.
Access, cleaning frequency, consumables and routine workload.
How confidently the available evidence supports our conclusion.
How commercial relationships are handled
Affiliate commission does not purchase a ranking. Products can be included without an affiliate programme, and products can rank poorly even when a commission is available. Commercial pages and affiliate links are labelled clearly.
Corrections and updates
Every substantive guide will display a reviewed date. We revisit pages when models, prices, availability, warranties or reliable evidence change materially. Readers can report a factual error to corrections@reefbench.co.uk.