Using Star San warm / hot... More or less effective?

Curious if anyone knows if there are any advantages or disadvantages to using Star San warm or hot? I know PBW is more effective at hotter temps. But for Star San would that enhance or detract from its sanitizer capabilities? Just a waste of heating power?

Use as Directed:

Homebrew use: Thoroughly wash all surfaces with detergent or a compatible cleaner, followed by a potable water rinse before application of sanitizing solution. Prepare a use solution of 1 oz. of Star San per 5 gallons of tap water. Apply on surfaces with a cloth mop, sponge, spray or by a 5 minute immersion. For spray applications, use a course mist, with pump or trigger spray. Spray 6 to 8 inches from surface; rub with a brush, cloth or sponge. With spray, cover or remove all food products. For all applications, allow to air dry, however surfaces must remain wet for at least one minute.
Do not rinse after Star San application.

Hot water not necessary

Yeah, I'm familiar with the directions. But I am curious if anyone has input about using it above the standard room temperature and how that affects it?

heat generally allows water to disolve things better, it reduces the viscosity of oils, increases the solubility of a lot of substances, kills bacteria, etc.

heat will not deactivate starsan, so there are no negatives to using hot starsan over room temp starsan. it may even help the sanitizing power a small amount. its not necessary to use hot starsan though.

It's so effective at room temp, there's not one good reason to heat it.

_

I just use the hot tap water, no reason to spend extra time boiling more water.

I can see where after your PBW wash you would rinse down and then fill your BK with water and boil it then run that through the chiller to rinse it/pasteurize then add Star San to what water remains in the BK (which would be hot) and run that through also just for sanitization confidence. I would run the hot star san into a empty keg From the chiller and have it for repeat use down the line.

I almost got bit by the zombie!!

I make a 5 gal batch (in an old primary) every month or so. I use both hot and cold at the same time. Never gave it much thought. IMO, if the directions don't specify either way, all's good.

This question was answered by 5Star in this thread: https://www.homebrewtalk.com/forum/threads/what-sanitisers-and-cleaners-are-used.43688/page-9:

I switched over to Star San over 10 year ago. Always have used cold tap water with impeccable results.

I’ve used it hot and cold with no difference since I started brewing about 8 years ago.