想问一下用gas的tankless 热水器需要电点火吗？停电还有热水吗？

还是有内置打火电池? 谢谢

同问..

https://homeinspectioninsider.com/tankless-gas-water-heater-without-electricity/#:~:text=All%20tankless%20water%20heaters%20need,ignition%20system%2C%20and%20remote%20thermostats.
All tankless water heaters need electricity to function properly  ‒ even gas-powered models. Electric heaters obviously need electricity to heat the water, but both need electricity to power their electronic control system, ignition system, and remote thermostats.
好像可以 install battery backup.