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Lifespan of a GRUNDFOS Circulator
I use a Grundfos circulator for my EVAC system. I've been using it for about 8 or 9 years now. Any idea what the lifespan of one of these pumps would be. The reason I ask is we are headed to FL for the winter again. In the past, I use to cover the array with a tarp so it did not run while we're gone. Last year, I ended up installing a heat exchanger in the loop so I can take advantage of the hot solar heated glycol and dump the heat in the basement. We had a fairly mild winter last year but I did burn only 1/2 of the fuel oil used to heat my house compared to previous years. So I believe it's working.
I'm afraid of the pump possible failing while I'm gone and end up with a mess. I'm thinking over the life span of this pump, it probably has run on average 8 hours a day for the last 8 or 9 years. Am I running on borrowed time? Should this question be asked in another section?
This is the circulator:https://www.amazon.com/Grundfos-UPS15-58FRC-3-Speed-Circulator-59896343/dp/B003XEYLU0