Weiheng + PHNIX

What Zerofy can do with Weiheng and PHNIX

In practice

• Autopilot isn’t available for PHNIX yet, so Zerofy won’t run your PHNIX heat pump on solar surplus automatically. You can see Weiheng production and PHNIX in one app and adjust the room temperature and flow temperature from there.
• Because Zerofy does not run PHNIX units on surplus automatically, put the heating or pool-heating window into the middle of the day with a schedule; pool heat pumps run mainly in summer, when midday PV output is highest.

What Weiheng and PHNIX offer on their own

Weiheng: WHES lists heating among the functions of its ECOS energy management, along with tariff-based planning, but names no heat pump brands and doesn’t mention SG Ready.

PHNIX: PHNIX’s “PV Ready” function lets the heat pump adjust its compressor frequency to the available solar power, controlled by a home energy manager or, if there is none, by PHNIX’s own Smart Meter. A “Spot Time” mode works with grid prices (target temperature, maximum frequency, six daily timers), and the Heco series also has an SG Ready interface.

Zerofy connects the two: it reads Weiheng production and controls your PHNIX heat pump to match, together with your other devices in one app.

Setting up Weiheng and PHNIX in Zerofy

1. Connect Weiheng

Zerofy connects through Weiheng’s partner cloud: you enter your system’s serial number in Zerofy, and Zerofy links the device and reads inverter, meter and battery data.

1. Make sure your Weiheng system is online.
2. In Zerofy, choose Weiheng and enter the serial number of your system.

2. Connect PHNIX

Zerofy connects to the PHNIX cloud with your PHNIX app login and shows the heat pump’s live status; you can set the room temperature and the water circulation temperature from Zerofy.

1. Connect the heat pump to the internet and register it in the PHNIX app.
2. In Zerofy, add PHNIX and log in with your PHNIX account credentials.

Good to know: Zerofy’s Autopilot does not yet run PHNIX heat pumps on solar surplus or dynamic prices; control from Zerofy is manual or by schedule.

Step-by-step guide for PHNIX

About Weiheng and PHNIX

Weiheng – Weiheng (Jiangsu Weiheng Intelligent Technology, Wuxi, China) is a battery storage maker; in 2025 Weiheng Energy Storage and its home brand ECACTUS were merged into the WHES brand. For homes it sells all-in-one hybrid storage systems: the single-phase PP-S2 (3.6–10 kW, 4.99–19.9 kWh) and the three-phase PP-T1 (5–13 kW, 9.98–29.94 kWh). Monitoring app: ECOS.

PHNIX – Guangdong PHNIX Eco-energy Solution Ltd. is a Chinese heat pump manufacturer based in Guangzhou (Nansha), founded in 2002. It makes air-to-water heat pumps for heating, cooling and hot water, hot-water heat pumps and swimming pool heat pumps, and exports about half its products, including to Europe. Products: Air-to-water heat pumps (Everest, Heco, GreenTherm Pro R290, HeatGreen), airExpert R290 all-in-one hot-water heat pump, full-inverter swimming pool heat pumps.

Manufacturer information last checked: October 2026.

All devices that work with Weiheng