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Switching over the hot water supply

This morning we had a hot water problem, with one of us ending up having a lukewarm shower in the ensuite. We had thought our ensuite was receiving hot water from our new instant hot water heater. I couldn't identify the cause, so I switched over the hot water using the taps under the ensuite sink, to what I thought was our gas heated storage hot water tank. We then had hot water again.

We went out a while and when back home mid-afternoon I checked that the instant hot water heater was working.  We were actually getting hot water in the kitchen but only cold water upstairs.  It had me baffled so I SMS'ed our builder, Matt, about his plumber coming back.

A little later I went to use the hot water in our 'original' bathroom and found there wasn't any.  That's when it hit me that the two hot water tanks were connected the opposite way to what I'd thought and the solution was simple.  It was the storage hot water heater that had the problem, and our ensuite had been running off it, not the new instant hot water heater.  I checked the tank and found that its pilot light was out - it probably blew out during the night in a gust of wind.

I've re-ignited the burner and by the morning we should be back to normal.

Again I am glad that we have two hot water units so that in situations like this we are not left without a warm shower or bath, whether morning or night.


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