I was chatting about gas tankless water heaters and their performance during power outages. We discussed using battery backups or UPS systems to keep them running, since they only require a small power draw for the initial ignition and fan operation. I had a thought about utilizing the Top Off for this purpose. I'm planning to check the power requirements for my unit, but I'm curious if anyone else has tried using the Top Off for such a setup!
1 Answer
Honestly, it might not be worth using the Top Off just for running your heater, especially since there are other options that don’t rely on expensive batteries. I’d be hesitant to try anything beyond low-power devices like LED lights with it.

I get that! My idea isn't to recommend the Top Off as a go-to solution, but more like a backup option I can use since I already have the batteries. If there's ever a rare power outage and I need a quick shower before an important event, it could work for that scenario.