Hot Water Calculator

Compare hot water heating costs for different systems and find savings

Hot Water Cost Calculator

Compare different water heating systems and find savings

Usage Details

Recommended: 150L for 3 people

Energy Prices & Settings

Hot Water System Technologies

Understanding different water heating technologies and their efficiency

Electric Systems

95% efficiency, instant hot water, higher running costs but lower installation cost

Gas Systems

85% efficiency, lower fuel costs, requires gas connection and flue

Heat Pumps

300% efficiency, very low running costs, higher installation cost

Solar Thermal

Free energy from sun, 60% coverage typical, requires backup system

Combi Boilers

88% efficiency, combined heating and hot water, space-saving solution

Hybrid Systems

Combine multiple technologies for optimal efficiency and reliability

Hot Water Saving Tips

Simple changes that can reduce your hot water costs significantly

💡

Lower Temperature

Reduce water heating temperature by 5°C to save 10-15% on costs

🚿

Shorter Showers

Reduce shower time by 2 minutes to save 25% on hot water usage

🔧

Fix Leaks

A dripping hot water tap can waste $49-70 per year in energy

  1. 1

    Estimer Daglig Forbruk

    Beregn varmtvannsbehov: 60-80 liter per person/dag, pluss oppvaskmaskin (25-40 liter/syklus) og vaskemaskin (60-120 liter/syklus). Gjennomsnittlig husholdning: 240-320 liter/dag. Spor faktisk forbruk i 1 uke for nĂžyaktighet.

  2. 2

    Sjekk NĂ„vĂŠrende Bereder Type

    Identifiser eksisterende varmtvannsbereder: tank (50-70% effektiv), tanklĂžs (80-95%), elektrisk varmepumpe (200-300%!), eller sol (50-80% gratis). Sjekk alder - hvis 10+ Ă„r gammel, vurder utskifting for effektivitetsgevinster.

  3. 3

    Oppgi Energipris

    Oppgi elektrisitet eller gasspris per enhet fra strĂžmregning. Vannoppvarming koster typisk kr 2.500-7.500/Ă„r. HĂžyere priser gjĂžr effektive beredere mer kostnadseffektive.

  4. 4

    Velg Ny Bereder Type

    Sammenlign alternativer: Tank (kr 5.000-12.000, 6-12 Ärs levetid), tanklÞs (kr 15.000-40.000, 20+ Är), varmepumpe (kr 18.000-35.000, 10-15 Är), sol (kr 75.000-120.000, 20+ Är). Vurder: husholdningsstÞrrelse, budsjett og effektivitetsmÄl.

  5. 5

    GjennomgÄ Besparelser og Tilbakebetaling

    Kalkulatoren viser Ă„rlige driftskostnader for hver beredertype, oppgraderingskostnad og tilbakebetalingstid. Vurder total levetidskostnad (kjĂžp + installasjon + 20 Ă„rs energi). Ikke glem Ă„ ta hensyn til tilgjengelige rabatter (kr 4.000-15.000).

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