Z-Wave Heatit Z-Relay - 25A
Works with your system
Based on manufacturer compatibility lists, our own tests and shared wireless standards.
See all controllers (8)
- Aeotec Smart Home Hub (SmartThings) Works by standard
- Hubitat Elevation (C-8, C-8 Pro) Works by standard
- Homey Pro Works by standard
- Home Assistant Works by standard
- Fibaro Home Center 3 Works by standard
- Fibaro Home Center 3 Lite Works by standard
- Nice Yubii Home Pro Works by standard
- Nice Yubii Home Works by standard
Compatibility Guarantee If it doesn't work with your system, return it within 30 days for a refund.
You'll also need
Home Assistant needs a Z-Wave adapter (usually a USB stick) to talk to Z-Wave devices; skip this if your Home Assistant box already has one.
Needed with: Home Assistant
Get it Tomorrow – Express UK Delivery
Get it Tomorrow – Express UK Delivery
Free UK delivery on orders over £75, otherwise £4.95.
Need it tomorrow? Choose Express (£7.95) at checkout.
In-stock items ordered before 2:30pm ship the same working day.
Smart Home Help When You Need It
Smart Home Help When You Need It
Transform your home into a smart one with us, and gain more than just a product.
You'll get set-up help and answers from our smart home team by email and live chat, plus a wealth of guides to help with any technical questions.
Compatibility Guarantee
Compatibility Guarantee
If Z-Wave Heatit Z-Relay - 25A doesn't work with your existing system, you can return it within 30 days for a refund under our returns policy.
Request the return from your account and we'll send you an RMA number and instructions.
Summary
The Z-Wave Heatit Z-Relay - 16A is a multipurpose relay module designed for various applications such as boiler control, leakage control, temperature control, and outdoor use
With its IP 55 rating, it is suitable for outdoor applications, and its three analog/digital inputs allow for flexible usage with different sensors and meters
This Z-Wave compatible relay module supports firmware updates, power metering, and offers S2 security for enhanced encryption, making it an ideal addition to a multi-protocol smart home hub for seamless integration with other smart devices in your network.
Heatit Z-Relay - 25A
Heatit Z-Relay multipurpose relay module can be used for many different applications. The IP 55 rated casing makes it useful for any outdoor application. Can pull loads up to 16A. The relay has three inputs: analog or digital. You can use both analog and digital inputs, or a combination.

Heatit Z-Relay is a multifunctional product and can be used for leakage control, temperature control, water heater control and various outdoor tasks
The relay inputs can be used with different NTC temperature sensors. The relay comes in two different versions, 16A and 25A. Both have OTA, power metering and S2 encryption.
The relay comes in two different versions, 16A and 25A. They both have firmware updates (OTA), power metering and S2 security.

A multifunction relay offers various uses and comes in 16A or 25A versions. It features 3 inputs and the option to connect an external antenna. The device is compatible with different types of NTC sensors and allows for calibration. It supports associations, firmware updates over-the-air (OTA), and power metering. Additionally, it includes the multilevel sensor command class and supports encryption modes, such as S0, S2 Authenticated Class, and S2 Unauthenticated.

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Device Type
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Channels1
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Load TypesResistive, Heating
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Load Rating25A, 3600W/5750W Resistive, 750W Heating Cable
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Sensor FeaturesTemperature Input
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FeaturesAdditional Inputs, Heating, Power Monitoring, SmartStart
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TechnologyZ-Wave Plus
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Z-Wave Region
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SecurityS2
Payment & Security
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Frequently Asked Questions
What if it's incompatible with my existing smart home system?
What if it's incompatible with my existing smart home system?
If you try Z-Wave Heatit Z-Relay - 25A and find it isn't compatible with your system, you can return it within 30 days for a refund.
How can I get technical support for it?
How can I get technical support for it?
Set-up help and answers from our smart home team by email and live chat. Just get in touch with any technical question you have.
Do you offer installation services?
Do you offer installation services?
While we don't offer direct installation services, we provide online support through guides, videos, and help from our smart home team by email and live chat. If you need an installer, we can often help connect you. With advancements in smart home tech, most of our products can be self-installed with guidance.
What if I struggle with installing or using after purchase?
What if I struggle with installing or using after purchase?
Just get in touch. Our smart home team can help you work through set-up and troubleshooting by email and live chat, and our guides and videos cover set-up for many devices. Most problems can be sorted quickly with the right steps.
How quickly will I receive my order?
How quickly will I receive my order?
Orders placed before 2:30pm on a working day are dispatched the same day. In the UK, Standard delivery takes 2 to 4 working days and Express is a next-day service. If your order includes a Vesternet device, choose Standard at checkout and we upgrade the whole order to next-day at no extra cost. For orders outside the UK, delivery options and times are shown at checkout.
Why should I choose to buy from Vesternet over other online stores?
Why should I choose to buy from Vesternet over other online stores?
When you buy from Vesternet, you're not just purchasing a product. You get set-up help and answers from our smart home team by email and live chat, plus guides for the products we sell. While there might be cheaper options online, home automation can be complex, and good advice can prevent costly mistakes.
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