---
title: Dual-Zone Compatibility & Installation Design Guide
description: Guidance on what to do before you install a Homely in a dual zone set up
---
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1. [Knowledge base](https://help.homelyenergy.com/knowledge?hsLang=en)
2. [Installer Resources](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en)
3. [Compatibility and System Design](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#compatibility-and-system-design)
# Dual-Zone Compatibility & Installation Design Guide
#### **✅ Pre-Installation Checklist**
Before installing a dual-zone system with Homely, confirm the following:
1. **Check Heat Pump Compatibility**
1. Consult the **heat pump manufacturer’s documentation** to confirm that the model supports dual-zone control.
2. Check the heat pump is compatible with [Homely’s dual zone brand limitations](https://www.homelyenergy.com/dual-zone-heating-installers-guide/)
2. **Order the Second Homely Node**
1. A second temperature node must be purchased through an **approved distributor**.
2. The additional node supports independent optimisation for each zone and carries a higher **cost** than a standard replacement node due to the extra modelling and data processing involved.
3. **Configure the System in the Installer App**
1. During setup, add the second node in the **Homely Installer App** to represent the additional zone.
2. Assign **clear, unique names** to each node and the nodes are assigned to the correct zone
3. Match the **zone configuration** on the heat pump controller with that in Homely to avoid control mismatches.
4. **Commission and Verify Operation**
1. Follow the **manufacturer’s commissioning guidance** to ensure both zones operate correctly before connecting Homely.
2. Confirm correct sensor placement, wiring, and communication with the heat pump.
3. Run a test to verify that both zones respond correctly to their respective set points.
#### **⚙️ System Design Considerations**
**Established System Configuration: Independent Modulating Flow Temperatures**
The best results are achieved when both zones can modulate their flow temperatures independently. This allows Homely to optimise each circuit separately, improving comfort and efficiency.
- This can be achieved by integrating an **electronic mixing valve** on one circuit.
- Not all heat pumps support this configuration—consult the manufacturer for guidance.
- Independent modulation prevents one zone from forcing the entire system to run at a higher temperature, maintaining better efficiency.
**Alternative Setup: Shared Flow Temperature**
Homely also supports systems where both zones share a single flow temperature and are controlled via **zone valves** or **circulation pumps**.
- In this case, when both zones call for heat, the heat pump runs at the higher required temperature.
- Some systems include a **thermostatic mixing valve** for lower-temperature circuits such as underfloor heating.
- These configurations work reliably but limit Homely’s optimisation capabilities since mechanical valves cannot modulate flow temperatures.
#### **💡 Installer Notes**
- Homely **does not control** pumps, mixing valves, or other hydraulic components directly. It sends a target flow temperature for each zone, which the **heat pump’s own control logic** interprets based on commissioning and setup.
- **Thermal interaction** (for example, warm air from one zone affecting another) may reduce perceived efficiency and should be explained to the homeowner.
#### **🏠 What the Homeowner Sees**
Once installed, both zones appear in the Homely app. The homeowner can adjust each zone’s temperature independently.
- [Getting Started](https://help.homelyenergy.com/knowledge/getting-started?hsLang=en#main-content)
- [Your Homely System](https://help.homelyenergy.com/knowledge/getting-started?hsLang=en#your-homely-system)
- [Before you buy](https://help.homelyenergy.com/knowledge/getting-started?hsLang=en#before-you-buy)
- [Benefits of Homely](https://help.homelyenergy.com/knowledge/getting-started?hsLang=en#benefits-of-homely)
- [Heat Pump Functions](https://help.homelyenergy.com/knowledge/getting-started?hsLang=en#heat-pump-functions)
- [Using Homely](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#main-content)
- [Setting up your Preferences](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#setting-up-your-preferences)
- [Smart+ Features](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#smart-features)
- [Account Management](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#account-management)
- [Usage Data](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#usage-data)
- [Solar Sense](https://help.homelyenergy.com/knowledge/using-homely?hsLang=en#solar-sense)
- [Homeowner Troubleshooting](https://help.homelyenergy.com/knowledge/homeowner-troubleshooting?hsLang=en#main-content)
- [FAQs](https://help.homelyenergy.com/knowledge/homeowner-troubleshooting?hsLang=en#faqs)
- [Hardware](https://help.homelyenergy.com/knowledge/homeowner-troubleshooting?hsLang=en#hardware)
- [Switching to Heat Pump Controller](https://help.homelyenergy.com/knowledge/homeowner-troubleshooting?hsLang=en#switching-to-heat-pump-controller)
- [Heat Pump Errors](https://help.homelyenergy.com/knowledge/homeowner-troubleshooting?hsLang=en#heat-pump-errors)
- [Installer Resources](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#main-content)
- [Why Homely](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#why-homely)
- [Configuring Homely](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#configuring-homely)
- [Compatibility and System Design](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#compatibility-and-system-design)
- [Manuals](https://help.homelyenergy.com/knowledge/installer-resources?hsLang=en#manuals)
- [Connect](https://help.homelyenergy.com/knowledge/connect?hsLang=en#main-content)
- [About Connect](https://help.homelyenergy.com/knowledge/connect?hsLang=en#about-connect)
- [Managing Installations](https://help.homelyenergy.com/knowledge/connect?hsLang=en#managing-installations)
- [Installer Troubleshooting](https://help.homelyenergy.com/knowledge/installer-troubleshooting?hsLang=en#main-content)
- [Homely](https://help.homelyenergy.com/knowledge/installer-troubleshooting?hsLang=en#homely)
- [Troubleshooting with Connect](https://help.homelyenergy.com/knowledge/installer-troubleshooting?hsLang=en#troubleshooting-with-connect)
- [Samsung](https://help.homelyenergy.com/knowledge/installer-troubleshooting?hsLang=en#samsung)
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