# Add HVAC

At Better Building, we make HVAC system modelling simple and flexible. Our predefined EnergyPlus templates offer ready-made configurations for common HVAC setups, reducing complexity and saving time. Users can select a template based on their building type and system needs, making it easy to get started with simulations. Of course, these templates are fully customisable, so users can fine-tune parameters as needed for more accurate preliminary energy assessments.

{% hint style="info" %}
Specific information regarding HVAC templates, plants and inputs are provided under [HVAC](/user-guide/2d-building/building/hvac.md).
{% endhint %}

## Add HVAC

To add an HVAC system, navigate to the 'Schematic' ribbon and select 'HVAC Template'. Left-click to open the template selection window. Navigate to 'Template' to view available HVAC systems. If not on the Premium plan, only 'EnergyPlus' systems will be visible.

<figure><img src="/files/Hgmmx0ll6wVSmKhq51fi" alt=""><figcaption></figcaption></figure>

Select 'Variable Refrigerant Flow' under the 'EnergyPlus' HVAC templates. Navigate to 'Spaces' and select the 'Default' space or any other available space. If additional spaces exist in your model, they will be shown here for HVAC assignment. If not, proceed to the next step.

<figure><img src="/files/xLGjWGXs43Up2So1nngD" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/OlQW0KF36Uxdg4NqltGb" alt=""><figcaption></figcaption></figure>

Click 'Select' to return to the HVAC schematic. Hover over and select an HVAC component, such as 'VRF Condenser Unit'. Left-click to open the default inputs. Navigate to 'Settings' to view all inputs for the VRF condenser unit. Update inputs as required and click 'Save'.

<figure><img src="/files/fWWTM04WiIG5AGTUZiQO" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/yrSE69qRVBp3CQ2W8p8w" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/P2iANBpG9EnTv6aqQZHk" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.betterbuilding.io/user-guide/2d-building/building/spaces/add-hvac.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.