legacy 2nd/3rd-gen district-heating supply spec; 4th-gen runs 30–70 °C, 5th-gen 10–30 °C
70–90 °Cobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2025 |
| Source | Renewable & Sustainable Energy Reviews (Elsevier) review |
| Review | checking…review by 2026-10-17 · standard cadence |
| Recorded changes | last 2026-06-29 |
| Claim id | legacy-2nd-3rd-gen-district-heating-supply-spec |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.