Yes, but do you make many 10's of gallons of tea every day?
While the amount would matter its the temp that makes the biggest difference,while your heating more the container is much larger with the water heater. and temp much higher with the kettle.. Thats why circ systems limit the water to 140......circulating it even makes it worse. How much does a circ system circulate....
ADD> 180 degree water is 4 x as corrosive as 140 degree water.
Last edited by Hackney plumbing; 03-23-2012 at 06:35 PM.