The Cottage has a solar water heating system and very efficient it is too. When I came the system had only just been commissioned and the water temperature was 24 deg. It went up to 29 deg on the first day (which was dull and overcast). I used the electric boost to get it to 45 deg. It now stays between 65 and 75 deg without using any electricity.
Until one day that is when it blew it's top. When I'd left in the morning, despite a very long shower, the water temperature was at 85 deg. Well the system soon gets alarmed at that and apparently - I wasn't here but the digger driver saw it all - it suddenly vented and the Cottage looked as though it was steam driven. I'm told the venting was quite spectacular.
It must have got rid of a lot of water because the temperature was down in the low 50s when I got home and dropped to 45 by late evening and then dropped more over night. It subsequently increased again and now seems to keep between 60 and 80 deg. How often it vents though I don't know.
2 days ago