seriously, if we change the temperature higher for Jan/Feb, do you not think we can set it back for warmer/hotter months?

Of course you can. My point is this. Suggesting to people who will not think to reduce the setting in summer that they should run their heater at skin burn temperature is irresponsible.

Still insulting everyone's intelligence,

don't you think that as the ground warms with the season, that the shower head temperature will slowly increase as well, and when the increase hits the too hot for all the way on , then people will wander out to the garage and change the setting? The knob in the shower is also able to adjust temperature down. . .

please, many of us posters and typists still have working brains.

Only the people who think the shower temp is either hot or off have some issues

Does the cold water not run to your shower?

If you can set your heater to a temperature that you like to shower in with straight hot water, great! If the straight hot water is too hot for a spouse or a visitor or during the summer then add a little cold water to the mix. It has never occurred to me to try and adjust the shower temperature using the dial on the hot water heater.

I find it very easy to avoid burns by testing the water temperature before I step into the shower. I test the water at every hotel I stay in and I test the water at home. If I choose to not do that then who is to blame for any discomfort I may experience?

My water heater is behind the wall of the guest bathroom. I take my showers in the guest bathroom. I get hot water within 15 seconds. It's magnificent.

I convinced hubby to change our tankless water heater temp to 130 from 120. It’s much better now. Water heats up faster at the farthest points from the heater, and the master shower is almost instant now since the water heater is on the side where the master bath is located. It’s not too hot either. Just right!

It won't be 140 by the time it reaches you, but will steadily increase as you shower. If you have nerve issues, you might not realize it before you are scalded 140 degrees can produce third degree burns in 5 seconds.

It's also dangerous for people that are visiting, and don't realize you have it that high, so warn them. Especially if they have small children. And they are in the guest shower closer to the tank, like in our house.

We took the TECO deal and got the recirculating tankless water heater. The advantage is that because it recirculates, you can set the temp lower (we are at 120) and you still get hot enough water to shower sooner at your most remote point. At 120, it will take over a minute to get a third degree burn.

We still warn our guests, however.

I find living here with my tankless water heater a wonderful experience even if I have to wait a few for the 125 degrees to come my way.