The full kit
Identify, verify, act.
14 specialised tools for energy trades, grouped by moment of the call-out.
THREE TASKS, NOT A CATALOGUE
Identify, verify, act
Marcel's tools answer three moments of a call-out. The full catalogue — and each tool's availability — comes right after.
1. Identify the unit
Nameplate, reference, serial: you start from the real equipment, not an assumption.
Tools involved : AI Vision, Catalogue
2. Verify the code
Error codes and manufacturer documentation: the meaning, the applicable source and the match limit.
Tools involved : Error codes, Sourced chat
3. Act
Commissioning calculations and procedures, with expected values when the source provides them.
Tools involved : Field calculation tools
HEAT PUMPS & A/C
Everything for installing and diagnosing heat pumps and air conditioning.
Refrigeration diagnosis
Automatic SH/SR calculation with multi-level diagnosis and refrigerant-aware thresholds.
Availability : Free: Unlimited · Pro: Unlimited · Team: Unlimited
Charge top-up
Precise top-up calculation (grams) based on pipe diameter and line length.
Availability : Included from Free — unlimited trade tools
Heating curve
Generate a heating curve and setpoint table based on your emitters.
Availability : Included from Free — unlimited trade tools
Flow & Delta T
Estimate flow rate and diagnose supply/return temperature delta.
Availability : Included from Free — unlimited trade tools
WOOD & PELLETS
Specialized expertise for wood and pellet stoves/boilers.
Flame diagnosis
Visual or symptom-based analysis to identify the cause of poor combustion.
Availability : Free: Unlimited · Pro: Unlimited · Team: Unlimited
Draft calculation
Validate net draft per EN 13384 with corrective recommendations.
Availability : Included from Free — unlimited trade tools
Service codes
Access installer codes and reset procedures for the main brands.
Availability : Free: Not included · Pro: Included · Team: Included
Clearances
Calculate safety clearances per DTU 24.1 and chimney type.
Availability : Included from Free — unlimited trade tools
Buffer tank volume
Compute optimal buffer volume based on fuel type and boiler power.
Availability : Included from Free — unlimited trade tools
FIELD TOOLS
Essential utilities for day-to-day work on site.
Cable chart
Compute cable cross-section and breaker rating based on voltage drop and installation method.
Availability : Included from Free — unlimited trade tools
Pipe diameter
Choose optimal pipe diameter based on power and fluid velocity.
Availability : Included from Free — unlimited trade tools
Converter
Instant conversion: power, pressure, flow across common units.
Availability : Included from Free — unlimited trade tools
TROUBLESHOOTING
Fast identification and access to technical catalogs.
AI assistant
Photo scan or voice dictation to identify the unit and error code instantly.
Availability : Free: 10 / day · Pro: Unlimited · Team: Unlimited
Catalog
Quick access to technical sheets and manuals for 100+ brands.
Availability : Free: Unlimited · Pro: Unlimited · Team: Unlimited
Ready to shift into Marcel gear?
Test an error code now, or see what each plan includes.