docs: for PR #5200

ACKNOWLEDGEMENTS.md

@@ -936,3 +936,4 @@ Further device support has been made with the assistance of users. Please consid
 - [calexander3](https://github.com/calexander3) for contributing support for Anderic UC7235T4 ceiling fan receiver.
 - [jrhrsmit](https://github.com/jrhrsmit) for contributing support for Blaupunkt XBoost robot vacuum.
 - [SiwatS](https://github.com/SiwatS) for contributing support for Kogan heater fan.
+- [pranksta02](https://github.com/pranksta02) for contributing support for Aquatech X8 Fusion water heater.

DEVICES.md

@@ -220,10 +220,10 @@
 
 ### Water heaters
 
-- Apricus heat pump water heater
 - A.O. Smith HeatBot 15L electric water heater
+- Apricus heat pump water heater
 - Aqua Plus APAIO270 heat pump water heater
-- Aquatech Rapid/X6 heat pump water heater
+- Aquatech Rapid/X6 and X8 Fusion heat pump water heaters
 - Aquaviva AVH15S combo air-water heat pump
 - Arçelik AHPH-MM series combo air-water heat pump
 - Axen KS-100W/EN8BP combo heat pump (rebranded as Arielli)