Software Tools
21 free, web-based MEP calculators built strictly to Indian + international codes (NBC 2016, ECBC, ASHRAE, IS, NFPA). For preliminary sizing - final design must be sealed by your licensed MEP consultant.
CLTD Cooling Load Calculator
Peak sensible + latent load using Indian city climate data, occupancy and envelope parameters per ASHRAE Fundamentals Ch.18.
HVACASHRAE 62.1 Ventilation
Multi-zone VRP method with metric/imperial toggle, DCV setpoints, integrated ASHRAE space type database.
HVACU-Value Calculator
Composite assembly U-value (W/m²·K) per ASHRAE layer-resistance method + ECBC 2017 compliance check.
HVACAir Duct Sizer
Equal friction + velocity methods for rectangular, circular, elliptical ducts per SMACNA / ASHRAE.
HVACChilled Water Pipe Sizer
Closed-loop CHW pipe sizing with automated IS 1239 schedule selection + friction loss.
HVACCondenser Water Pipe Sizer
Open-loop sizing (cooling tower to chiller) with heat rejection factors + recommended velocities.
HVACPsychrometric AnalyzerNEW
Air state, mixing, cooling/heating coil sizing per ASHRAE Fundamentals.
HVACHot Water Tank SizingNEW
Storage + recovery sizing for solar + heat-pump water heaters per ASHRAE Apps + IS 2825.
FIRENBC Fire DBR Generator
Auto-generate NBC 2016 Part 4 Table 7 fire protection compliance sheets by occupancy + height.
FIREFire Pipe Sizer (NFPA 14)NEW
Standpipe + hydrant pipe sizing per NFPA 14 / NBC 2016 with Hazen-Williams friction.
FIREFire Pump Head (NFPA 20)NEW
Fire pump head selection per NFPA 20: elevation + friction + residual pressure.
FIREStaircase & Liftwell Pressurization
Per NBC 2016 Part 4 - fan flow + safe door-opening force compliance.
FIRENBC Emergency VentilationNEW
Smoke management airflow per NBC 2016 Part 4 + IS 15493.
ELECTRICALElectrical Cable SizerNEW
Automated IS 1554 cable sizing including grouping derating factors + voltage drop.
ELECTRICALLighting Load CalculatorNEW
Interior lighting load (lux, luminaires, kW) per NBC 2016 + IS 3646 + ECBC + IES.
ELECTRICALLumen Method Lighting DesignNEW
Lumen method luminaire count by space type + ceiling height + RCR + maintenance factor.
ELECTRICALDG Room VentilationNEW
Diesel generator room airflow per NBC 2016 + IS 9818 + CPCB IV+.
ELECTRICALTransformer Vent CalculatorNEW
Transformer room ventilation per CBIP Pub. 295 + IS 1646 + IS 2026.
PLUMBINGPlumbing Demand CalculatorNEW
Domestic water demand per IS 1172 + NBC 2016 Part 9 by occupancy type.
PLUMBINGPlumbing DFU CalculatorNEW
Drainage fixture units + Hunter / UPC method for waste pipe sizing.
PLUMBINGRainwater Harvesting YieldNEW
Annual harvest volume + tank sizing per IS 15797 + CGWB guidelines.