Tankless Water Heater - does it waste water?

S Davis wrote:

kedanie wrote:

S Davis wrote:
They will waste more water, unless they have a constant recirculation or heat setting. This setting keeps the heater warm and reduces the amount of time for the heater to start heating the water. Kind of defeats the purpose of the unit. All the tankless heaters take time to sense the water flow, start the ignition cycle and then get the heat exchanger up to temp. could be anywhere from 5 seconds to 20 seconds.

So what is your experience with these units?


Ours fires up in less than 2 seconds with as little flow of .5 gallons per minute.

Our real life propane use is less than with a tank type unit Ike we used to have.

The only advantage tank types have is that they have the ability to run on electricity. With more and more rv parks charging a meter rate for the electricity used, the electric option is a waste compared to the cost of propane.

How much water do you waste when you have to empty the water heater tank after a camping trip?

Check out the real facts for the Precision Temp RV500 on line. Yes, it really does use less propane!

Learn the facts before spreading rumors and non-truths.

Keith

Almost 30 years in the plumbing and heating trades specializing in boilers and hydronics so I guess not much. I have probably installed over a thousand tankless heaters of all different brands, and I do have one in my house as well. But you must know it all since you have one in your RV.

Agreed both of your post have been spot on. Nothing wrong with tankless but without recirculation of some sort they do waste a more water than a conventional heater. Maybe a deal breaker for some and not a big deal for others. but the waste occurs either way
I am also in the plumbing business and have yet to see a tankless produce instantaneous hot water without delay.