HVAC Español — BTU Calculator

castilloi

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About this app

HVAC ESPAÑOL is the professional toolkit built specifically for HVAC technicians
who work in Spanish — the first bilingual app that combines real engineering
calculations with full EN/ES interface.

★ BTU / THERMAL LOAD CALCULATOR
Calculate cooling and heating loads using ACCA Manual J methodology. Input area,
height, climate zone (tropical, hot, temperate, cold), insulation quality, sun
exposure and occupants. Get BTU/h, tons, kW — and unlock airflow (CFM), duct
sizing and PDF report with one ad view.

★ PRESSURE-TEMPERATURE (P-T) TABLES
Complete P-T charts for R-410A, R-32, R-22, R-134a and R-454B. Both liquid and
vapor pressures shown in PSI with °F and °C. Unlock with one rewarded ad — free.

★ FAULT DIAGNOSTICS
Identify the most common HVAC failures by symptom:
• Not cooling / No cooling
• High discharge pressure
• Low suction pressure
• Compressor tripping on overload
• Ice on suction line
Each symptom includes step-by-step causes and field solutions.

★ HVAC FORMULAS REFERENCE
Sensible heat, latent heat, total heat, EER, SEER, COP, CFM, superheat,
subcooling, single-phase and 3-phase power, unit conversions. Long-press any
formula to copy it instantly.

★ UNIT CONVERTER
BTU ↔ kW ↔ Tons | °F ↔ °C | PSI ↔ bar | CFM ↔ m³/h

BILINGUAL — Full English and Spanish interface. Switch languages with one tap.

WORKS OFFLINE — All calculators and P-T tables work without internet.

FREE WITH ADS — Unlock premium features by watching a short rewarded video.
No subscription. No hidden fees.

Perfect for: residential AC technicians, commercial refrigeration techs, HVAC
students, building maintenance workers, and anyone studying for EPA 608 or
NATE certification.

Built for the 4+ million Spanish-speaking HVAC professionals in the USA and
Latin America.

What’s new

Open application ad added