On Thu, 06 Aug 2009 13:41:13 -0700, Smitty Two
wrote:

In article ,
Oren wrote:

On Thu, 6 Aug 2009 13:19:56 -0700 (PDT), bob haller
wrote:

just wait for a storm and power failure, with tankless no hot water at
all......


Not with gas units. They have a spark igniter - just like your gas
grill. Gas works when the power is out!

Ain't the spark powered by 120 VAC?


I'm the last person to ask that question. I am told that striking a
match will light the pilot on a gas unit.

"The Bosch engineers have proven that water can indeed make fire. The
pilot is ignited by a super-concentrated spark generated by a
micro-turbine. The micro-turbine is activated by a request for hot
water in the house."

I never knew about turbines, but tankless systems have gotten better
over the years.

Imagine that. Power is out and the gas unit fires up!