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Heat Pump vs Room Heater

Monthly heating cost at COP 3 vs resistance heater — honest per-kWh-heat comparison.

Your inverter AC's heat mode IS a heat pump — COP ~3 against the 2 kW blower's COP 1. Same warmth, a third the electricity; north-Indian winters are exactly where this swap pays.

₹1,600
Inverter AC heat mode monthly cost
Electricity used200 kWh/month
Resistance heater (at 100% efficiency)₹4,800/month
Monthly saving₹3,200
Effective heat price₹2.67/kWh-heat

A COP of 3 means each electrical unit delivers 3units of heat — the heat pump doesn't create energy, it moves it. The comparison divides resistance heater's fuel price by its efficiency for an honest per-kWh-of-heat contest.

Sources: Heat pump COP fundamentals; field-measured seasonal values

Indicative estimates only, not financial or investment advice. Tariffs, subsidies and net-metering rules change — verify with your DISCOM, utility or installer before committing.

Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.

Use the free Heat Pump vs Room Heater online — Monthly heating cost at COP 3 vs resistance heater — honest per-kWh-heat comparison. Runs instantly in your browser: no signup, no upload, mobile-friendly.

About Heat Pump vs Room Heater

Your inverter AC's heat mode IS a heat pump — COP ~3 against the 2 kW blower's COP 1. Same warmth, a third the electricity; north-Indian winters are exactly where this swap pays.

How to use Heat Pump vs Room Heater

  1. 1Enter your monthly heat need (help text gives typical values).
  2. 2Confirm the COP and your electricity tariff.
  3. 3Compare against the alternative fuel's monthly cost.

Why use Heat Pump vs Room Heater?

  • COP accounting: heat moved per unit of electricity bought
  • Honest comparator: rival fuel ÷ rival efficiency
  • System-typical COP defaults from field data, not brochures
  • Monthly money math for the payback conversation

Frequently asked questions

What does COP actually mean for my heating bill?+

Coefficient of Performance = heat delivered ÷ electricity consumed. COP 4 means each kWh you buy delivers 4 kWh of heat — the other 3 are pumped from outside air/ground for free. Your effective heat price becomes tariff ÷ COP: ₹8 electricity delivers ₹2/kWh heat.

Heat pump vs gas vs electric resistance — which is cheapest?+

Compare per kWh of HEAT: resistance = tariff (COP 1); gas = gas price ÷ ~0.9 efficiency; heat pump = tariff ÷ COP. At ₹8 power and COP 3.5, the heat pump delivers heat at ₹2.3 — beating most gas prices and demolishing resistance. This calculator runs your actual rates.

Do heat pumps work in very hot or very cold climates?+

Both, with caveats: cooling-dominated India is heat-pump natural territory (an AC IS one). For heating, modern cold-climate units hold COP ~2 at −15°C; ground-source sidesteps weather entirely via stable earth temperature. The system presets here carry climate-honest COPs.

Why is my real COP lower than the rated one?+

Ratings are lab points; seasonal reality includes defrost cycles, part-load behaviour, and your actual temperature lift. Field seasonal COPs run 15–25% under rated. Measure yours with the COP-from-bills approach: heat delivered (litres × ΔT × 1.16 Wh) ÷ metered kWh — the Heat Pump vs Room Heater accepts your measured figure.

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