Our water heater is original to the house... built in 1975. You do the math. Don't make 'em like that anymore!true but not in just 6 months' and I have replace thermo-couplers before with my own 2 little hands even.
(No jinx

Might be better to start with an astronomy club event. See if he's interested before spending the money.79 + moons. Thats amazing. I wonder if Robert would like a telescope..
#1 won his in 5th grade. One of 6 kids to get one that year from our local astronomy club. He wrote an essay. We volunteered at all sorts of events for years.