A valve assembly includes a first mixing valve configured to mix hot fluid and cold fluid to provide a first mixed fluid, a second mixing valve configured to mix hot fluid and cold fluid to provide a second mixed fluid, and a housing configured to receive the first mixing valve and the second mixing valve. The housing defines a hot fluid inlet configured to be fluidly coupled to a supply of hot fluid, a cold fluid inlet configured to be fluidly coupled to a supply of cold fluid, a hot fluid passage fluidly coupling the hot fluid inlet to the first mixing valve and the second mixing valve, and a cold fluid passage fluidly coupling the cold fluid inlet to the first mixing valve and the second mixing valve.