this post was submitted on 20 May 2025
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AusRenovation

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A property we looked at recently has this electric hot water tank. There's no date on it, but it's obviously quite old and the realtor says to him it looks like an 80s model.

Common wisdom and information I can find online says that you're doing really well if you get 20 years out of a hot water tank (10-15 years is a more realistic lifespan).

So... How is this tank still functioning? And if we were to buy this house, should we expect that we'd have to replace this basically right away?

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[–] Letstakealook@lemm.ee 7 points 1 week ago (1 children)

From my nonexpert perspective and the apparent state of that thing, I would assume you would have an amateur rocket with an unspecified launch date. Even if it's safe, you'll save money with modern efficient models.

[–] amotio@lemmy.world 3 points 1 week ago

This, and also externally this heater might look ok and "works" but inside might be full of rust-mud.

We have recently removed our old heater and the insides were pretty nasty, the walls have almost rusted away just waiting to pop.

[–] maniacalmanicmania@aussie.zone 5 points 1 week ago (2 children)

Interesting looking basement.

[–] WaterWaiver@aussie.zone 2 points 1 week ago

I'm jealous. Walking height ceilings? Arches???

[–] No1@aussie.zone 1 points 1 week ago

It puts the lotion on its skin....

[–] The_Che_Banana@beehaw.org 3 points 1 week ago

In my non expert experience being a very cheap bastard there are a couple things that go wrong with water heaters: calcium buildup and the element....maybe the area has very soft water?

Calcium buildup can be removed with acid, delime solution or vinegar & the elements can be changed out rather than replacement of the whole tank.

Maybe the previous owner was a cheap bastard like myself and figured repair was worth it instead of replacement...either way, if it ain't broke don't fix it.

[–] gazter@aussie.zone 3 points 1 week ago

Those things are built, quite literally, like tanks.

It'll go at some point, so have some money put aside for a replacement, but you aren't going to save money by replacing it with a more efficient model.

If you're going to invest in a heat pump model, I believe they do better outside. So do yourself a favour and talk to a plumber about a good spot, pour a little slab for it, maybe even pre run piping.