Replacing an old mini fridge

Submitted ⁨⁨2⁩ ⁨months⁩ ago⁩ by ⁨Lifecoach5000@lemmy.world⁩ to ⁨[deleted]⁩

I have a 24 year old mini fridge that’s still alive and kicking. It’s a model that actually also has a freezer compartment.

I’ve been thinking about replacing it - especially since the freezer portion no longer works. But I was also curious how much more energy efficient fridge tech has gotten in the past 20 years? Like would I make up the cost of a new mini fridge pretty quickly based off the less power consumption?

I actually have one of those electricity monitors hooked up to it logging the data and I’m still kinda researching - but though hey I’ll just ask c/nostupidquestions and maybe someone here might know right off the dome! Thanks in advance

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IsoKiero@sopuli.xyz ⁨2⁩ ⁨months⁩ ago
I don’t have answer for you, but Alec over at Technology Connections made a video few days ago related to the topic. That might not have the answer for you either, but as his videos (and there’s a ton of those, even for refridgerators) are among of the best at youtube that is worth cheking out.

But as a rule of thumb, new materials and hardware are better on pretty much every metric. And if your current one doesn’t work properly anymore it’ll most likely uses way more power than it should, as coolant flow/insulation/something isn’t in fully working condition and thus compressor needs to run more often than on a new unit.

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- Catoblepas@lemmy.blahaj.zone ⁨2⁩ ⁨months⁩ ago
  I actually watched that a few days ago, main takeaway I got from it was NEVER use a mini fridge with a thermoelectric cooler rather than one with a real compressor.
  
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  - SpacePirate@lemmy.ml ⁨2⁩ ⁨months⁩ ago
    Legally, those aren’t mini fridges.
    
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- hydrashok@sh.itjust.works ⁨2⁩ ⁨months⁩ ago
  His videos have some good points but damn I hate his aloof presentation style.
  
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- Lifecoach5000@lemmy.world ⁨2⁩ ⁨months⁩ ago
  Thanks for the info. Will def check this out!
  
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dual_sport_dork@lemmy.world ⁨2⁩ ⁨months⁩ ago
The manufacturer(s) will publish an energy guide label with their estimated kWh/year energy usage for any given model. Using your Kill-a-Watt or whatever energy monitoring device you have, it should be fairly trivial to measure a day’s worth of energy consumption from your old fridge and multiply it by 365 to get a yearly figure.

Then just see if A < B.

I’ll start with among the cheapest and junkiest available, the Avanti RA31B3S (which has a separate freezer compartment). The manufacturer claims it burns 320 kWh/year.

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- Lifecoach5000@lemmy.world ⁨2⁩ ⁨months⁩ ago
  Yeah that’s kinda what I am doing. If I’m using this energy monitor thing right, the fridge is on Day 9 and has used 20.32 kWhs
  
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  - dual_sport_dork@lemmy.world ⁨2⁩ ⁨months⁩ ago
    If that pattern holds then a modern one should be ~4x more energy efficient…
    
    Also bear in mind that there is only a single evaporator in that thing, so it’s not a case of “just the freezer isn’t working.” The refrigeration system in there has partially failed, wholesale, and you only notice it first in the freezer because that’s the coldest compartment and stuff melting is a very obvious tell. That fridge is probably working its compressor constantly in a vain little mechanical attempt to reach its temperature setpoint, which it will never accomplish because it’s lost compression or has a slow refrigerant leak or whatever. So it’s consuming even more electricity than it otherwise would, and replacing it with just about anything would be a net improvement.
    
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algorithmae@lemmy.sdf.org ⁨2⁩ ⁨months⁩ ago
The old adage “they don’t make em like they used to” heavily applies to fridges. Our 30 year old fridges in unininsulated garages (one at home, one at a workshop) keep going through all the abuse and neglect, but the 3-5 year old fridge in the kitchen always has problems. Replacing it with a different brand only slightly increased the reliability. I’d foot the electricity bill for peace of mind.

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Num10ck@lemmy.world ⁨2⁩ ⁨months⁩ ago
go for one from a hotel mini bar. www.hotelsurplus.com

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