The water won't get cold before it hits you (personal experience), the extra distance isn't enough added travel time for evaporation to cool the water. I never liked low (normal-height) shower heads and had the same concern as your husband. Our Kohler rainheads (Forte) have a rough-in height of 72-78" 'typical' above the shower floor. I installed them 4" above the high end, or about 82" and they are wonderful. My wife likes them as well, but it's the rainhead she likes, I don't think the height matters to her. I also took the flow-control device out (O-ring behind the inlet filter screen) which is an added plus for the feel of the rainshower.

As the judge used to say, "Hang 'em high!"

Thank you - I will let the plumber know! I have heard about the flow restrictor trick - but I think I'll try it out in place first - I'd like to save water, but there's nothing worse than not being able to get properly wet in the shower!

which valves/cover can be insatlled for Kohler shower head?