I just bought a Rinnai tankless water heater and I’m honestly a bit overwhelmed. The manual that came with it is super detailed but feels like a lot to take in at once. Has anyone here figured out the best way to balance using the text-heavy manual with video walkthroughs? I don’t want to miss any safety details, but at the same time, I’d rather not spend hours flipping through diagrams when I could just watch a quick step-by-step video. What’s been more useful for you all?

I can totally relate to your situation, because when I first installed my Rinnai tankless water heater, I had the exact same problem — the manual was a goldmine of information, but it felt overwhelming. What worked for me was using both formats side by side. I started with a short video walkthrough to understand the big picture: how the heater should be mounted, how the venting looks in real life, and the basic flow of the installation. But then I went back to the manual for all the important details like gas line specs, clearances, and safety warnings. That way I didn’t miss anything critical. Also, if you haven’t already, you can check out https://manuals.online/rinnai
because they have a ton of the manuals in digital format, which is way easier to navigate on your phone or tablet than flipping through the printed one. Honestly, the combo of video plus manual made everything much smoother.