I have a small house in Alaska, NG, with baseboard heat from a HydroTherm boiler which is original to the house (1985). It's ticking along fine.
However, I had some leaky pipes earlier this year and called a plumber out; he said to absolutely replace the boiler before the snow flies. He said not to spend any more money on repairs, but to get the whole shooting match out.
Given that I have the boiler plus a tank water heater, I figured the natural step would be to replace it with a combination on-demand heater/boiler.
So I called a P&H guy who was highly recommended, and he said yes, go combi, he loves Lochinvar and recommends them, and gave me a price.
However, now I can't reach him, so I called a couple other places.
One couldn't come out yet, but gave me a good estimate (though sight unseen) for a Navien combi.
Another well-recommended P&H guy came to look and said it was absolutely not necessary to replace it, and that combi units are discontinued so often and parts are not stocked in state, so it's far better to stick with the HydroTherm. He suggested a servicing/cleaning, which of course I'm happy to do, and maybe a new water heater as it's more than 10 years old.
All that said ... I have the money right now. If a 1985 HydroTherm is going to continue to function just fine for another 10+ years, okay. But is it better to replace it with a new unit while I've got the funds? I don't want it taking a dump in mid-winter in Alaska. What's the real lifespan of what I have now?
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