“Hot water” for No-Boil Baked Ziti?

Gonna give https://www.seriouseats.com/food-lab-no-boil-baked-ziti-recipe a shot after the episode on The Recipe podcast (already enjoyed the Smitten Kitchen one). It calls for covering with "hot salted water". Do folks just use hot tap water for this? I usually don't cook with hot tap water. Heating a pot of water on the stove first seems to defeat the point of the recipe not needing you to boil water? (We've got a Zojirushi boiler too so I could just use water from that, or is that too hot?) Comments on the recipe seem inconclusive.