Gateway S32 (Standard WiFi Edition)

(94 customer reviews)

84,95 incl.VAT/BTW

The EMS Gateway S32 (Standard Edition) is the only device you need to add your EMS devices to your home automation system.


If your boiler has a service jack you do not need the DC power supply, only the jack cable.
If your boiler does not have a service jack, or it does but you want to mount the Gateway elsewhere you need to get the version with the DC power supply. Both the service cable and the power supply are sold separately as an option below.

In stock

EAN: 8719327747513 SKU: gw-kit-S32 Categories: ,

Description

This ESP32 based Gateway S32 (Standard Edition) is the only device you need to add your EMS devices to your home automation system.

Just plug in the device into the service jack on the boiler with the optional jack cable and stick it to the side of the boiler.
If your boiler does not have a service jack, you can also use the EMS/thermostat wires in parallel to the thermostat.
No additional cables are needed and everything is powered from the jack itself or from an external 12V power adapter.

The Gateway connects via WiFi to your home network.

Its all neatly packed in a nice and small enclosure (90x50x24mm) that fits into your hand.

(To make a choice between Gateway models look HERE)

Features:

  • New V2.0 circuit board with on-board 16MB ESP32 module
  • Plug-and-play connection to the EMS bus with one cable
  • Connects to the EMS bus via the service jack or the EMS/thermostat wires
  • Based on the Espressif ESP32
  • 2.4GHz Wi-Fi connectivity
  • EMS-ESP firmware V3
  • Complete responsive webinterface
  • New: English, German, Swedish and Dutch language selection (more to come)
  • Firmware upgrade via the webinterface
  • Configured for Home Assistant
  • Supports the Home Assistant MQTT Discovery protocol
  • MQTT Discovery now also works with Domoticz without plugin
  • MQTT and Restful API for other interfaces like NodeRED, OpenHAB and Loxone
  • Telnet console
  • Optional DS18B20 temperature sensors
  • Supports all EMS heating circuits
  • Support large EMS systems with many EMS devices simultaneously
  • Support for EMS, EMS+, Heatronic 3 etc.

Supported EMS device types (See the full list here):

  • Boilers
  • Heat pumps
  • Thermostats
  • Solar modules
  • Mixer modules

Power options:

  • Service jack (with the optional cable)
  • 9-12V DC (with the optionally supplied power adapter)

If your boiler has a service jack you do not need the DC power supply, only the jack cable. If your boiler does not have a service jack, or it does but you want to mount the Gateway elsewhere you need the DC power supply.
You can add your own 12V DC power supply later on but I only support the power supplies that can be ordered with the product.
Do not use cheap audio cables for the service jack as they have very thin wires inside. Only use the optional cable below.

On first boot the Gateway will create an access point on which you can login with a browser and make the appropriate settings for your own network. So for this kit you don’t need any soldering or real programming skills. You do however need to properly configure your home automation system. For Home Assistant MQTT discovery is available and for Domoticz an easy to use plugin.

It has an additional connector for directly connecting Dallas 1-wire DS18B20 sensors.

The Gateway can be plugged into the service jack of the boiler, or you can connect it to the EMS bus via the thermostat wires instead. In the latter case you need to use the 12V power supply.
Because the Gateway is an ‘always on’ device it contains high quality components like Panasonic and Murata capacitors for maximum longevity of the device.

Included in the kit:

  • Fully assembled and tested Gateway S32 (Standard edition)
  • Self adhesive strip
  • JST ZH cable for connecting external DS18B20 sensors (sensors not included).
  • Optional: 3,5mm jack cable for the EMS service jack
  • Optional: 2-pole Euro plug power supply with 12VDC output and 5.5mm DC barrel jack connector (center pin positive).
  • Optional: wall mount bracket.

For all details about this product look at the extensive EMS Bus Gateway product Wiki.
Please consult the information pages before purchase.

The Gateway comes fully assembled, tested on an actual EMS boiler and loaded with the EMS-ESP firmware.

You can download the manual here.

The current firmware of the Gateway already supports the long list of these EMS devices.
If your device is not listed, it might very well be fully or partially compatible. In case you are missing parameters, you can always open an issue on the firmware repository to get support.
If you have an old Nefit Ecomline boiler or the control panel on your boiler looks like one of THESE, then your boiler is not EMS based but iRT. The Gateway will not work on iRT boilers without a modification nor is there any support in the firmware.

Additional information

Weight 0,2 kg
Bus compatibility

EMS, EMS Plus, EMS+, EMS2, Heatronic 3

Connectors

3,5mm Service jack, EMS bus wire screw terminal, JST connector (for DS18B20 sensors)

Input power options

12V DC adapter, Service jack

DC power supply

12V DC power supply included, No 12V DC power supply

Network options

WiFi (wireless)

Origin country

Netherlands

HS Code

84718000

94 reviews for Gateway S32 (Standard WiFi Edition)

4.9
Based on 94 reviews
  1. Andreas F. (verified owner)

    Ein klasse Produkt mit ausgezeichneter Softwareunterstützung. Toll.
    Die Heizung ist per MQTT nun simple in meine Hausautomation einzubinden gewesen. Danke auch an die Unterstützung der Softwareentwicklung im Team

  2. Stefan W. (verified owner)

    Great product, works smoothly with my Buderus GB192i and Home Assistant.

  3. Klaus (verified owner)

    Alles super. Funktioniert tadellos.

  4. Maxim (verified owner)

    Great product !

  5. Marco L. (verified owner)

    Schnelle, einfache Installation und Integration. Super Dokumentation über Wiki. Sehr übersichtliche und strukturierte Weboberfläche. Ich habe das System in meinen IOBroker integriert. Habe auch noch 2 Ds18b20 Sensoren angeschlossen. Verlief alles ohne Probleme.

  6. Alessandro Casolaro (verified owner)

  7. Peter (verified owner)

  8. Andreas (verified owner)

  9. Richard L. (verified owner)

  10. Didier (verified owner)

  11. Tomasz P. (verified owner)

    Robi dokładnie to co ma robić! Dobra integracja z Home Assistant! It does exactly what it is supposed to do! Good integration with Home Assistant!

  12. Steven (verified owner)

  13. Thierry (verified owner)

    The module works great : nearly Plug n’ Play.
    Actually, not fully compatible with my installation, but it’s not a problem from the module itself.

  14. Peter S. (verified owner)

    De Gateway was makkelijk te installeren met de documentatie op de wiki. Ik heb het gekoppeld aan Home Assistant via de MQTT integratie. Het zou fijn zijn als MQTT niet per se nodig is. Het is nu het enige apparaat wat dit bij mij gebruikt. De S32 werkt heel stabiel met mosquitto 2.0.12. Ik had wel problemen met een 1.x versie van mosquitto. Nadat ik de nieuwere versie ben gaan gebruiken, heb ik geen problemen meer gehad. De integratie met Home Assistant werkt ook prima. Ik heb een thermostaat widget en notificaties ingesteld als de temperatuur gewijzigd wordt. Deze worden vrijwel direct verstuurd na een wijziging.

  15. Knut (verified owner)

    After my Buderus KM200 broke, I purchased this Gateway. Works like a charm, I needed only 2 hours to replace the programming in FHEM to switch from KM200 to S32.

  16. Steffen Pohl (verified owner)

    It did not work right out of the box, the installed fw did not reconnect after a wlan loss. Took me some time to get guided to a beta which solved the problem as far as I can say now. I have not done a comprehensive test so far, connecting a bunch of DS18B20 will be the next step and afterwards controlling the boiler. I am quite optimistic.

  17. Pavel Mrkvan (verified owner)

    I had few issues with EMS-ESP (I didn´t see my thermostat at dashboard). Boys on github helped me quickly – Issue #160 – my old boiler is a bit non-standard. After uloading the new version everithing works fine. The connection to the homeassistant went , also well.

    Image #1 from Pavel Mrkvan
    Image #2 from Pavel Mrkvan
  18. Aleksejs (verified owner)

    Works, easy install (even if you need to disassemble your boiler). Works with old HT3 as well (but you need to handle reset by yourselves, mimicking thermostat behavior sending data every minute or so)

    Image #1 from Aleksejs
    Image #2 from Aleksejs
  19. Anonymous (verified owner)

    Excellent product, worked out of the box (Bosch/Junkers Cerapur ZSB 14 + CR100 thermostat)! Nice documentation.

  20. Maciej (verified owner)

    device works like a charm! The quality is nice 🙂

  21. Sascha Gautsche (verified owner)

  22. Sascha (verified owner)

  23. Martin (verified owner)

  24. R.P. Wiersma (verified owner)

    Works as expected

  25. Michel G. (verified owner)

    Software point of view:

    Web interface very nice and easy.
    Integration with Home Assistant truely simple.

    Hardware point of view:

    The JST connector is really small and could be replaced by the same type as the EMS bus terminal to make the connection more reliable.

    Really a good product.

    • hondapower (store manager)

      Thanks for the review.
      Indeed the JST connector should ideally be a bit larger but I did not have room to fit a larger one on the PCB next to all the other connectors in the same enclosure.

  26. Thomas Welsch (verified owner)

    Top Info! Top Support! I am Happy 🙂

  27. Lukasz Jakobiec (verified owner)

    Works better than expected with my junkers cerapur smart. I am really happy with it 🙂

  28. Johan Vromans (verified owner)

  29. Matthias (verified owner)

    Perfect with Buderus heating. Highly recommanded!!!

  30. Fabian S. (verified owner)

  31. Kamil (verified owner)

    Very Good product. It’s easy to plug and config

  32. Jonas (verified owner)

  33. Manfred (verified owner)

    Plug-and-play!
    einziger Knackpunkt: bei Lieferung war eine Beta-Firmware installiert…..

  34. Philippe Scholtes (verified owner)

    I had actually ordered the Gateway S32 and received instead the E32 upgrade. Installation was a little more complicated for me because my boiler did not have a service jack; I had no power socket nearby; I wanted to enclose both EMS Gateway and 12V DC transformer in a neat, waterproof case and; I wanted to use the opportunity of a 12V DC power supply to connect a z-wave device and strengthen the z-wave mesh in that part of the house. It all worked great, thanks to the continuous advice of Kees at BBQKees Electronics

    Image #1 from Philippe Scholtes
    Image #2 from Philippe Scholtes
  35. Kim-André Knudsen (verified owner)

  36. MORTEN M. (verified owner)

    The Gateway S32 unit worked straight away when I connected it to my Worcester Bosch 12I boiler and finally gave me access to the burner stats so I can monitor the gas boiler in Home Assistant. Configuration was very simple and so far the S32 gateway is working great.

  37. Anonymous (verified owner)

  38. Ben A. (verified owner)

    The EMS-ESP appears well constructed. Following the instructions, it was easy to get it connected to my boiler (WB Greenstar Heatslave II) and MQTT broker. The extensive information and control afforded by the gateway has allowed me to significantly improve the integration of my central heating system with our home automation platform.

  39. Gauvain (verified owner)

    Works out of the box !

  40. Josip T. (verified owner)

    Marvelous little device. Ordered it in order to control my Bosch ZWC 24-3 MFA (Heatronic 3) and it worked like a charm.
    Next step: When Lenovo IdeaPad Duet 3 x86 tablet arrives, install Debian on it and run Home Assistant Supervised on it and use it as a wall-mounted controller – for EMS ESP, among other things.

    Image #1 from Josip T.
    Image #2 from Josip T.
  41. H Wagter (verified owner)

  42. Jan (verified owner)

  43. Evert (verified owner)

    IMHO, the S32 is a perfect solution when you have a Bosch heating installation which you want to monitor and control. Well thought-through web interface and quick to set-up. I use it in conjunction with an MQTT broker and it works flawlessly.

  44. Michel B. (verified owner)

    Vraiment très pratique, je cherchais une solution pour piloter ma chaudière Buderus et tout fonctionne facilement avec Home Assistant.

    Image #1 from Michel B.
    Image #2 from Michel B.
    Image #3 from Michel B.
    Image #4 from Michel B.
  45. Anonymous (verified owner)

    Attached via screw terminal to Junkers ZSBR 16-3B. My other devices are MM100 mixer module and the CW thermostat. Working as a charm!

  46. Michael Schwarting (verified owner)

    until now

  47. Damian P. (verified owner)

    Works right out of the box.

  48. Kris (verified owner)

    Very good product, works as advertised. Easy to setup.

  49. Wojciech Nowak (verified owner)

    Gateway s32 work perfect with my Buderus GB122 (connected to the main board parallel with R310).
    Gateway is really plug&play, works perfect with Home Assistant.

  50. Thomas B. (verified owner)

    Works from the first moment on without any problems. Great work.

  51. Anonymous (verified owner)

  52. Winfried Heitele (verified owner)

    Very satisfied with the product, shipment and delivery.

  53. Matthias Berse (verified owner)

  54. Hamish Findlay (verified owner)

    So easy to install and instantly got access to the data I needed. Really neat being able to add temp sensors to the same device. So useful to know what the boiler is actually doing.

  55. Michael K. (verified owner)

    Works great with Junkers Cerapur ZSB 22-3A (2007/2008)

  56. Daniel (verified owner)

  57. Anonymous (verified owner)

  58. Beniamino P. (verified owner)

    Wiki not fully updated. Hard to reset once you forget the password

  59. Timo (verified owner)

    Übertrifft meine Erwartungen und funktioniert auf Anhieb.
    Anschluß an der Servicebuchste von Buderus Logamax Plus GB162-25. Alle Daten können per MQTT an OpenHAB übermittelt und graphisch angezeigt werden.

  60. Henning (verified owner)

  61. Marek (verified owner)

    I’m using it with Junkers Cerapur boiler/heater and Home Assistant. Installation is a breeze, everything working on a first attempt. Still trying to figure out what all the values for my boiler do 🙂

  62. Michael K. (verified owner)

    Very good product, working perfectly well

    Image #1 from Michael K.
  63. Radovan K. (verified owner)

  64. Anonymous (verified owner)

    Good quality hardware, good Web Interface, excellent support when installing. The perfect job for my Bosch-Junkers EMS (HT3) based bus. Allowing read and write to all parameters. Mine feeds Home Assistant via MQTT then into Graphana to present data.

  65. Florian (verified owner)

    That was easy! Plugged into the service jack of my Buderus GB172-14 and it works like charme. For monitoring it is a perfect solution… Using Iobroker, grafana and influx for this. Editing of some entities does not work as expected, however. But this is maybe related to the GB172-14.

  66. Joachim K. (verified owner)

  67. Patrick M. (verified owner)

    Extrem einfache Einrichtung, läuft super, habe eine Buderus Luft-Wärmepumpe. Service Jack war etwas versteckt, aber Blenden abgenommen und dank der Anleitungen hier völlig problemlos zu finden! Verbunden mit ioBroker, läuft tadellos.

  68. Lutz (verified owner)

    Sehr einfache Einrichtungen, viele Daten der Heizanlage. Wunsch wäre mehr Informationen zu möglicher energiesparender Steuerung der Heizung, speziell Fußbodenheizung.

  69. Alain S. (verified owner)

  70. Martijn (verified owner)

    Excellent solution for what it is intended to do. Meten = weten.

  71. Martin A. (verified owner)

    works like a charm. it makes your “dumb” gas boiler smarter 😉

  72. Andreas H. (verified owner)

    Tolles Produkt um die Daten einer Buderus GB152 + RC30 Heizung in einer Home Assistant Umgebung zu visualisieren.

  73. Ralf (verified owner)

  74. Carsten (verified owner)

    Works fine with Home Assistant.

    Image #1 from Carsten
  75. Anonymous (verified owner)

    Werkt perfect, makkelijke set up

  76. Ian (verified owner)

    Great little device. Up and running and helping manage costs.

  77. Tom Oeben (verified owner)

    Doesn`t work with an Unify Mesh Network. when changing the AP via Handshake it loses all WIFI Settings. Had to install an AP only for the S32 Gateway

  78. Andrey Orekhov (verified owner)

    It is an excellent device, which allows you to control a lot of parameters of the boiler. I am very satisfied with my purchase and I fully recommend it to everyone

  79. Anonymous (verified owner)

    Does all what is needed. Smartness of proprietary wifi network turning on when paired home wifi is unavailable is perfect. Very well thought product

  80. Johannes d. (verified owner)

    Love the product. Have it integrated into homeassistant using mqtt and already tweaked the heating system with it. Gives a lot more insight and with the homeassistant integration i can control the heating from the internet.

  81. Dalius B. (verified owner)

    everything is good, everything works, everything is fine … thanks

  82. Jakob H. (verified owner)

    Amazing product, exactly what I was looking for!

  83. Walter V. (verified owner)

    Combine with the good instructions this was easy to setup. Using it in combination with Junkers Cerapur Top 30 ZWBR and FW100 thermostat. Linked to Domoticz via MQTT

  84. Stephen Vidler (verified owner)

    Feels like a quality item and the online documentation is clear and easy to follow. I was able to connect it to my Worcester Bosch boiler and get it up and running in Home Assistant without any problems. I can now monitor and control the boiler flow temperature and see what is going on. 100% happy with the purchase!

  85. Wim (verified owner)

    Super convenient and easy to install device. Perfect integration with Home Assistant

  86. Andreas (verified owner)

    Works absolutly perfect. Installation without any problems. Nice contact.

  87. Albert (verified owner)

  88. Koen Aerts (verified owner)

    idem 😉 Great stuff!

  89. Dominik (verified owner)

    Instalation as easy as possible. The device works perfectly.

    OT:
    It would be possible to produce, including similar software, a similar device to read pulses from pulse meters (water, gas…) – I think there would be a demand. Thanks

  90. Christian Fuchs (verified owner)

    I was sooo impressed by this product and I was sure that it will fit to my gas thermal, that I ordered a bit to fast. I should have read the “non compliant list” 🙂
    Setup with WLAN was easy, the web GUI with all the possibilities is excellent and I was impressed again.
    Unfortunately my gas thermal is to old and doesn’t speak EMS. But this is solely my fault and that’s why there is no other choice as to rate this product excellent !!

    • BBQKees (store manager)

      If you can’t use it in the end you may still return the product.

  91. Ingo (verified owner)

  92. Roman M. (verified owner)

    Great device!

  93. Melanie G. (verified owner)

    Easy plug and play, great extension for Home Assistant

  94. Simon (verified owner)

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