CoolCalc
Web-based Manual J/S/D HVAC load-calculation tool with LiDAR floor-plan scanning, satellite trace input, and cross-device access -- pay per project or by monthly subscription.
3.4 /5 composite score
C2 4/5 reflects the documented REST API with HTTP Basic Auth, and C3 4/5 reflects the self-serve per-project model. PDF MJ8 reports and JSON API responses define the export surface, and integrations include LennoxPros, AHRI matchup data, and email delivery.
Solid
Rubric Scorecard
| Criterion | Score | Evidence |
|---|---|---|
| Value for the price | 3/5 | Per project Source → |
| Agent Friendliness | 4/5 | API: REST API documented at docs.coolcalc.com/developer-docs with HTTP Basic Auth and HATEOAS links |
| Ease of adoption | 4/5 | -- |
| Portability & lock-in | 3/5 | 2 file formats |
| Interoperability | 3/5 | 3 integrations |
Pricing
ModelPer project
How we verified this: we checked CoolCalc against its live site and an independent source — worldmetrics.org. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-18.
Evidence
File formats
| Format | Direction | Support |
|---|---|---|
| PDF (MJ8 reports) | unknown | unknown |
| JSON (API responses) | unknown | unknown |
Integrations
LennoxPros (white-label) AHRI matchup data email delivery
Sources
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