Don't worry!Your parents,friends,and family,and most importantly,the manufacturers don't tell you and some can't,is that the water in the reservoirs is Bo**ock A**e freezing at this time of year and your shower has to work overtime to heat it up,in the summer your shower was hotter,now it ain't,if you want a hotter shower then fit a Bigger KW shower or adjust to it.Sorry if I sound blunt but it is realy the temperature of 50million gallons of cold water that is causing it.
Rich
October 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix baths and showers.