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Getting more hot water from my solar heater—what am I missing?

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culture_apollo
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(@culture_apollo)
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Definitely been there—sometimes it’s the stuff you overlook that ends up making the biggest difference.

- Heat loss is sneaky. I spent weeks fiddling with my system settings before realizing the attic pipes were like radiators in winter.
- Insulation’s underrated. Cheap, quick, and you see results right away.
- I used to think tweaking the controller or flushing the tank would solve everything, but honestly, physical fixes like pipe sleeves or even just sealing up drafts around the tank gave me more hot water than any digital adjustment.
- Don’t beat yourself up for missing it at first. These systems are more about process of elimination than anything else.

Funny how the “obvious” stuff only looks obvious after you find it, right? I’ve wasted afternoons chasing electrical gremlins when it was just a loose pipe clamp. It’s all part of the DIY learning curve.


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ofluffy84
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Funny you mention insulation—I used to think that was just hype, but after wrapping the pipes and sticking some foam around the tank, the difference was night and day. Did you ever check for leaks or slow drips at the valves? I had a tiny one under the kitchen sink that was stealing way more hot water than I realized. Also, is your collector angle right for your location? I moved mine a bit last year and it bumped up the temps more than I expected. Sometimes I wonder if all the tweaking is worth it, but then my gas bill comes and I’m back at it...


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fhill94
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Tweaking is kind of the name of the game with these setups, honestly. You nailed it with the insulation—people underestimate how much heat can slip away through bare pipes. Leak checks are smart too; even a slow drip can mess with your efficiency. As for the collector angle, it’s surprising how a few degrees can make such a difference, especially in winter. I get the feeling of “is this worth it,” but every little adjustment does add up over time. Those gas bills are proof you’re on the right track.


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Posts: 12
(@hunter_jackson)
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Tweaking is kind of the name of the game with these setups, honestly. You nailed it with the insulation—people underestimate how much heat can slip away through bare pipes.

Funny you mention the collector angle—last winter I spent a Saturday afternoon up on a ladder, just nudging mine a few degrees. Didn’t expect much, but it actually made a noticeable difference on those cold, sunny days. I totally get what you mean about the “is this worth it” feeling. Sometimes it’s like, how many tweaks can one system need? But then the gas bill comes in and it’s lower than last year, and suddenly it feels like all the little stuff adds up.

Have you ever tried insulating the storage tank itself? I wrapped mine with an old moving blanket (not the prettiest look, but hey, it works), and I swear the water stays hotter overnight. Also, do you notice any difference if you run your hot water at different times of day? I’ve found late afternoon showers are way toastier than early morning ones, especially in winter. Just curious if that’s common or if my setup’s just quirky.


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hannahpilot
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I get the logic behind wrapping the tank, but I’m not convinced a moving blanket does much compared to proper insulation. I’ve tried both, and honestly, the difference was pretty minor. Also, about the timing—are you sure it’s not just the system catching up after a cold night? I’ve seen tenants complain about lukewarm water in the morning, but it’s usually just the tank losing heat overnight, no matter what you wrap it in. Maybe it’s more about the recovery rate than the insulation itself.


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