06-05-2007, 06:13 PM
I'm not sure if any of the tankless/on-demand water heaters will function without electrical power. It's needed for the thermostat and heat control. And aside from that, your pressure pump will need power to pressurize your house plumbing.
If functionality during a power outage is a large concern, then solar water heating and/or photovoltaic power should be considered. If you can arrange for an elevated holding tank, filled by a windmill, perhaps, and use gravity for pressure, you could be clear of some of the inconveniences of a power outage. Otherwise, a generator is another possibility.
If functionality during a power outage is a large concern, then solar water heating and/or photovoltaic power should be considered. If you can arrange for an elevated holding tank, filled by a windmill, perhaps, and use gravity for pressure, you could be clear of some of the inconveniences of a power outage. Otherwise, a generator is another possibility.