On-Off Range of Gaz Water Heater Too Wide

For some reason, the natural gas has expanded the range at which it turns on and off to heat water. In effect what we have now at the old setting, 1) tepid warm but not hot water when the tank has had time to cool off 2) scalding hot water if the tank has just run through a heating cycle.
How does one narrow the range setting on a Nat Gas hot water tank, so that the low end is warmer, but the hot end does not burn you ?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

You don't say what type of water heater you have, but if it's the more common, older conventional design, you're screwed because it's contained in the gas valve mechanism which is replaced as a unit. And they ain't cheap.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Thursday, May 2, 2013 3:00:47 PM UTC-4, Attila Iskander wrote:

) tepid warm but not hot water when the tank has had time to cool off 2) sc alding hot water if the tank has just run through a heating cycle. How does one narrow the range setting on a Nat Gas hot water tank, so that the low end is warmer, but the hot end does not burn you ?
You might drain it to see if there is a build up of sediment in the bottom. The thermostat control can also be removed to see if it has scale build u p. Most with pilot lights are mechanical. You might also be feeling the r esults of a deteriorated dip tube. That's the tube under the inlet that di rects all the cold water to the bottom. Otherwise if the control is shot, it's pricey, not worth replacing on an older unit.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

1) tepid warm but not hot water when the tank has had time to cool off 2) scalding hot water if the tank has just run through a heating cycle. How do es one narrow the range setting on a Nat Gas hot water tank, so that the lo w end is warmer, but the hot end does not burn you ?

ld up.  Most with pilot lights are mechanical.  You might also be feeli ng the results of a deteriorated dip tube.  That's the tube under the inl et that directs all the cold water to the bottom.  Otherwise if the contr ol is shot, it's pricey, not worth replacing on an older unit.
well you could add a tempering valve and set the heater to max hot and set the valve to the hotest water you ever want.....
if the water heater is more than 4 or 5 years old its cheaper to just replace it........
just trying to remove the gas valve or dip tube may cause the tank to leak......
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.