Docs for PR #2554

ACKNOWLEDGEMENTS.md

@@ -784,3 +784,4 @@ Further device support has been made with the assistance of users. Please consid
 - [NonozgYtb](https://github.com/NonozgYtb) for assisting with support for LSC Smart Connect Garden spotlights.
 - [xtaria](https://github.com/xtaria) for contributing support for Houschen bathroom mirror.
 - [nerodoxus](https://github.com/nerodoxus) for contributing support for Eberg Rico dehumidifier.
+- [tompapajr](https://github.com/tompapajr) for contributing support for Edge Theory Labs cold plunge heat pump.

DEVICES.md

@@ -125,6 +125,7 @@
 ### Pool heaters / heat pumps
 
 - BWT FI 45 heat pump
+- Edge Theory Labs cold plunge heat pump
 - Evotherm ETI series heat pump
 - Fairland IPHCR15 pool heat pump (allows control of heat/cool modes)
 - Fairland RMIC06 pool heat pump