Good morning,
Thank you for your question,
As this bath shower mixer the 178FJ is not thermostatically controlled it will be suitable to fit to a cold water mains and a hot water system that is tank fed, (just be aware that the bar pressure on the cold side may be more then on the hot side so the flow of water fully open is most likely to be more then on the hot side.)
Hope this helps,
Bristan.
Answered by: BristanResponse
Date published: 2022-04-21