What is the maximum external temperature the design can operate in? Can you build it in hot places to power air conditioning and things like that during the worst days?
I think that the only impact the outside temp has on this is how it relates to the cooling efficiency of the steam loop. External temp will have almost no effect at all on the reactor itself or its operation.
Those reactors are small compare to usual one, but they still operate in a power plant like a gas or coal one.
It's not a home or neighbourhood nuclear reactor.