Replace your old Fridge / Freezer ?

Energy efficient construction methods and insulation
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nowty
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Replace your old Fridge / Freezer ?

#1

Post by nowty »

My parents had a standard sized old Hotpoint fridge / freezer which was circa 25 years old. My mother has been complaining for years that it’s not big enough and more recently she is needing to defrost it more regularly but it was still keeping food cold as you would expect. My father insisted there is nothing wrong with it and there is no room for a larger one. ;)
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I took my mum to Currys for a look at several alternatives and I managed to persuade her to go for the Bosch Series 6 which was more expensive but more efficient with a Best of the Best awards for efficiency. It’s a new C rating but that’s equivalent to the older A+++ rating.

The new one is much taller and a little wider, I had to remove a kitchen wall cupboard for the new one to fit. I also removed a dodgy socket which I found was connected to the lighting circuit. :?
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I started thinking whether it would save any leccy because its almost double the capacity and having higher efficiency is not always better if you buy a bigger one. :?:

My mums is chuffed to bits with it :D , but my father went nuts because he thinks there was nothing wrong with the old one in the first place :x. First thing I noticed when it was turned on is that the heat exchanger at the back does not get hot like the old one, it stays only luke warm and the compressor seems to modulate. The freezer also has double the thickness of insulation. :geek:
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But what about the energy usage ?

My parents leccy usage is practically constant every day with hardly any variability unless I visit and plug the EV in, hence the 4 obvious days I visited. :twisted:

After several days data results are now in,
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My parents average leccy per day before new fridge freezer 4.22 kWh.
My parents average leccy per day after new fridge freezer 2.32 kWh.

1.9kW saving every day, so on the price cap of 34p / kWh that’s £236 a year. :mrgreen:

The fridge cost £809, delivered, installed and old one taken away, so that’s a payback of 3.5 years so it would even be worth buying on credit and using the savings to pay the instalments.

My dad's still going nuts about it though, even though he didn’t pay for it, and he is making all the leccy savings. :roll:

The next job is going to be trying to persuade him to ditch the open gas fire which just eats fossil fuel. :evil:
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18.7kW PV > 110MWh generated
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spread-tee
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Re: Replace your old Fridge / Freezer ?

#2

Post by spread-tee »

Horrible things, Carbon Monoxide generator work of the devil. If you have access to an FGA, show him the 20 ppm of CO from time to time.

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Mr Gus
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Re: Replace your old Fridge / Freezer ?

#3

Post by Mr Gus »

That is whirlpool / hotpoint / philips brown from the 1980's imho ..so potentially a poor older than your 20 year estimate.I

Just tot up the break even point based on both units consumption & write it on the new unit / adjust in April when the next *subsidised, not solved* energy shocker ((£££ kicks in the rollocks)) *kicks* in.
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nowty
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Re: Replace your old Fridge / Freezer ?

#4

Post by nowty »

Mr Gus wrote: Sun Oct 02, 2022 11:39 pm That is whirlpool / hotpoint / philips brown from the 1980's imho ..so potentially a poor older than your 20 year estimate.I

Just tot up the break even point based on both units consumption & write it on the new unit / adjust in April when the next *subsidised, not solved* energy shocker ((£££ kicks in the rollocks)) *kicks* in.
It had a reference on the back to 1993 regulations so it could be up to high 20's in years. I expected the new one to payback in its lifetime, but even if prices drop a bit in the near future its still circa 5 years.

In hindsight, it was a complete no brainer for my mum to change it.
18.7kW PV > 110MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 30MWh generated
6 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 520 m3
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