hot water issues

Our house has a pretty new and large water heater in the garage. It was there when we bought the house. The odd thing about it is that some days we can take a bath and there is plenty of hot water. Other days, we take a bath and there isn't enough. And we aren't really using the water anywhere else that would use up that much hot water.
Don't know if it's related, but the downstairs bathroom toilet seems to be using hot water for some reason. It didn't seem hot for the last two years.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Do you have any sink faucets or showerheads with a secondary shut off? Like where you have the hot and cold handles turned on but the water is shut off on the showerhead valve. Or a laundry/garage washbasin with a hose and hand sprayer attached and the hot and cold valves left on. If so then hot and cold water may be circulating together through the pipes to the toilet etc. A defective washing machine valve can do this also. Kevin
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
First, check and make sure that the water heater is not on a timer as it's possible it's programmed to turn off during the times you need hot water. Usually hot water is not piped to a toilet except to prevent the tank from sweating. But you shouldn't be able to notice it that much unless the flapper inside the tank is bad and letting water pass by. This makes the tank keep adding water every so often. These flappers are less than $2 so I would replace that anyway. Look for a timer and let us know if you find one.
nfalconer wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Site Timeline

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.