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In older houses a heat pump usually costs €1,100 to €1,600 a year in power. The reason is the higher flow temperature, which makes the pump less efficient.

A heat pump tariff lowers the price per kWh a lot. What you pay in the end mostly depends on insulation and radiators. Funding lowers the purchase, not the running costs.

Generated from the results below. It can be wrong.

Generated from the results below. It can be wrong.

Results

  1. energieportal-nordheim.deenergieportal-nordheim.de › guides1
    What a heat pump in an old house really costs

    Oct 3, 2026 · In unrenovated older houses power costs are often 20 to 30 percent above a new build, because the flow temperature has to be higher.

  2. stadtwerke-nordheim.destadtwerke-nordheim.de › tariffs2
    Heat pump tariffs 2026 at a glance

    Sep 12, 2026 · Dedicated tariffs are between 26 and 31 cents per kWh, with a separate meter and blocking times.

  3. institut-lumen.orginstitut-lumen.org › studien3
    Field study on seasonal efficiency in existing homes

    2025 · Measured in 120 houses. On average 3.0 in older homes, 4.1 in new builds with floor heating.

  4. kanzlei-berger.dekanzlei-berger.de › insights4
    Which heat pump funding applies in 2026

    Aug 1, 2026 · Up to 70 percent of the cost is subsidized, depending on income and the old heating.