Calculadora de Eficiencia Energetica / Energy Efficiency Calculator

How It Works

1. Select Your Language / Seleccione su Idioma

   Click the language toggle to switch between English and Spanish. All labels, tooltips, results, and chart legends update instantly. You can also use the URL hash #es to load the tool in Spanish by default.

2. Pick Your Fuel Sources / Seleccione Combustibles

   Choose which fuels to compare against the mini-split heat pump. Options include propane, natural gas, fuel oil, and electric resistance. You can select multiple fuels for a side-by-side comparison.

3. Enter Energy Prices / Ingrese Precios

   Enter your electricity rate in dollars per kWh and your fuel prices from recent bills. Use actual prices from your area for accurate results. Prices vary significantly by region and season.

4. Set Temperatures / Configure Temperaturas

   Enter your indoor setpoint and select the outdoor temperature range to analyze. Toggle between Fahrenheit and Celsius. The calculator generates cost and COP curves across the full temperature range you specify.

5. View Results & Charts / Vea Resultados

   Review the COP vs. temperature curve, cost comparison chart, and switchover temperature. All results and chart labels display in your selected language. Use these to plan your heating strategy and discuss options with contractors or clients.

Built For

• Spanish-speaking homeowners evaluating mini-split heat pump costs vs. their current furnace or boiler
• Bilingual HVAC contractors presenting cost comparisons to Spanish-speaking clients in their preferred language
• Latin American homeowners and property managers planning heating system upgrades for US properties
• Bilingual energy auditors preparing reports in Spanish for clients who prefer Spanish documentation
• HVAC companies serving predominantly Spanish-speaking communities who want to offer tools in both languages
• Property management companies with multilingual tenant bases explaining heating cost options

Features & Capabilities

Full English/Spanish Toggle

Every element of the calculator - labels, tooltips, results, chart legends, error messages - is fully translated. Switch languages with one click. The translation is not machine-generated; it uses natural HVAC and energy terminology appropriate for native Spanish speakers.

URL Hash for SEO (#es)

Link directly to the Spanish version by appending #es to the URL. This allows search engines to index the Spanish content separately, helping Spanish-speaking users find the tool through search. Share the link with clients or embed it on Spanish-language contractor websites.

Identical Calculations

All math, COP presets, switchover analysis, and charting functionality is identical between languages. The Spanish version is not a stripped-down translation - it is the full tool with complete feature parity.

13 COP Presets

The same manufacturer-specific COP curves available in the English version are available here. Mitsubishi Hyper Heat, Fujitsu XLTH, MrCool Universal, and more. Select a preset or define custom COP data points.

Multi-Fuel Comparison

Compare mini-split heat pump costs against propane (gas LP), natural gas (gas natural), fuel oil (aceite combustible), and electric resistance (resistencia electrica). See cost per hour at every outdoor temperature.

Temperature Unit Toggle

Switch between Fahrenheit and Celsius for all temperature inputs and displays. Useful for users accustomed to Celsius who are evaluating US properties, or US users working with Celsius-based equipment specs.

Comparison

Frequently Asked Questions