> For the complete documentation index, see [llms.txt](https://help.immodio.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.immodio.app/en/anleitung/betriebskostenabrechnungen/heiz-und-warmwasserverbrauch.md).

# Heating and hot water consumption

<figure><img src="https://152064692-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FMmjaQ7ApHsdO9GrxyEiQ%2Fuploads%2Fgit-blob-a5b610ad2e74c217898c321efb4d6d95ed5b80b2%2Fimage%20(41).png?alt=media" alt=""><figcaption></figcaption></figure>

In this step you define how **heating and hot water consumption** is to be allocated across the individual units.

The associated costs, for example fuel costs, heating costs, hot water costs or billing services, were already recorded in [**step 3 – Relevant entries**](/en/anleitung/betriebskostenabrechnungen/relevante-buchungen.md) in the [**Heating and hot water costs**](/en/anleitung/betriebskostenabrechnungen/relevante-buchungen/heiz-und-warmwasserkosten/heiz-und-warmwasserkosten-2.md) area. This step is about how these costs and consumption shares are allocated among the users.

You have two options for this:

If **a suitable meter exists for every unit** and **all meter readings were recorded** for the settlement period, consumption can be calculated precisely from the respective meter readings. The costs incurred are then allocated according to the actual consumption of the individual units.

{% content-ref url="/pages/mkDeG2d6L2vhGHefepdP" %}
[Meters and meter readings](/en/anleitung/betriebskostenabrechnungen/heiz-und-warmwasserverbrauch/zahler-und-zahlerstande.md)
{% endcontent-ref %}

If, on the other hand, **no suitable meter exists for at least one unit** or **at least one meter reading was not taken**, a complete determination of consumption is not possible. In that case choose allocation by **square metres and pro rata time**. The costs incurred are then allocated to the units on the basis of the living space and the respective periods of use.

{% content-ref url="/pages/HsayMP2akZsHsSHIaVFO" %}
[Square metres and pro rata time](/en/anleitung/betriebskostenabrechnungen/heiz-und-warmwasserverbrauch/quadratmeter-und-zeitanteilig.md)
{% endcontent-ref %}

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