The Tarm solo plus 40 installation instruction manual needs to be updated or changed to show the lo-limit fan switch setting for use with storage. I ran for two seasons before realizing the fan did not shut itself off. I would do it manually. My installer and I both had to phone bioheat to understand how the low limit fan switch needed to be lifted up to be turned back to 90C. It came set for no storage and has been running that way ever sense. Looking the installation manual over I saw nothing to indicate what to adjust. I had an alternate section which stated to turn the lo-limit back to 90C but no drawing showing the lifting of the dial knob. If it were clear in description and drawing this entry on Hearth.com would not have been necessary or the phone call to bioheat. Has anyone else had this problem? I hope others can learn from my mistake. How many kwh of electricity were waisted? I'll never know. Sweetheat