ASHP & triple glazing

Air source, ground source and associated systems for heating homes
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Joeboy
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Re: ASHP & triple glazing

#1211

Post by Joeboy »

Been to Marmaris, got some new furniture and a washing machine..I noticed this before with our fridge free,er and now washing machine. Both are fitted with inverter. Is this now a UK standard too?
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Stinsy
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Re: ASHP & triple glazing

#1212

Post by Stinsy »

Joeboy wrote: Mon Apr 14, 2025 12:44 pm Been to Marmaris, got some new furniture and a washing machine..I noticed this before with our fridge free,er and now washing machine. Both are fitted with inverter. Is this now a UK standard too?
Inverter drives are more efficient and last longer than traditional motors. This is because they vary power output rather than simply being on-off. All "in theory" of course...

Edit, I've been messing about with AI, this is what it has to say on the subject:
To determine whether an inverter fridge is better than a traditional (non-inverter) fridge, let’s break this down by comparing the two in terms of key factors like energy efficiency, performance, noise, durability, cost, and overall suitability. I’ll draw on general knowledge about refrigeration technology and insights from web sources to provide a balanced perspective.
1. Energy Efficiency
  • Inverter Fridge: An inverter fridge uses a variable-speed compressor that adjusts its speed based on the cooling demand. Instead of turning on and off completely, it slows down when less cooling is needed (e.g., at night or in cooler weather) and speeds up when more cooling is required (e.g., when the door is opened frequently or during hot weather). This adaptability leads to significant energy savings—typically 20% to 50% less electricity compared to a traditional fridge, depending on usage patterns and models. For example, some sources estimate savings of around 30% on electricity bills [Web ID: 0] [Web ID: 9].
  • Traditional Fridge: A traditional fridge uses a fixed-speed compressor that operates at a single speed, cycling on and off to maintain the set temperature. This on-off cycle consumes more energy because the compressor uses a surge of power each time it starts (often 3-4 times more than its running current) [Web ID: 16]. Additionally, the constant cycling can lead to energy waste, especially if the fridge door is opened frequently, as the compressor must work harder to cool down the warm air that enters.
  • Verdict: Inverter fridges are generally more energy-efficient, which can lead to lower electricity bills over time. This makes them a better choice for those prioritizing energy savings and environmental impact.
2. Performance and Temperature Control
  • Inverter Fridge: The variable-speed compressor in an inverter fridge provides more consistent temperature control. Instead of stopping completely, it slows down to maintain the desired temperature, reducing fluctuations. This stability helps keep food fresher for longer by minimizing temperature swings, which can be critical for perishable items [Web ID: 2] [Web ID: 6]. Some inverter fridges also cool faster when needed, such as after loading warm groceries, because the compressor can ramp up its speed dynamically [Web ID: 8].
  • Traditional Fridge: A traditional fridge’s on-off cycle leads to more noticeable temperature fluctuations. When the compressor stops, the temperature inside the fridge can rise slightly, and when it restarts, it cools back down, creating a cycle of ups and downs. This can affect food preservation, especially for sensitive items like dairy or meats [Web ID: 15].
  • Verdict: Inverter fridges offer better performance in terms of consistent cooling and food preservation, making them preferable for maintaining food quality.
3. Noise Levels
  • Inverter Fridge: Inverter compressors start at a low speed and gradually increase as needed, which results in quieter operation. Traditional fridges often produce a noticeable hum or jolt when the compressor kicks on, but inverter models avoid this sudden startup noise. Many sources highlight that inverter fridges are significantly quieter, making them ideal for open-plan homes or quiet environments [Web ID: 0] [Web ID: 2] [Web ID: 6].
  • Traditional Fridge: The fixed-speed compressor in a traditional fridge generates more noise, especially during startup. The loud cycling can be disruptive, particularly in smaller living spaces [Web ID: 0] [Web ID: 18].
  • Verdict: Inverter fridges are quieter, which is a clear advantage for noise-sensitive households.
4. Durability and Lifespan
  • Inverter Fridge: Inverter compressors experience less wear and tear because they don’t undergo the stress of frequent on-off cycles. The gradual speed adjustments reduce mechanical strain, leading to a longer lifespan for the compressor and the fridge overall. Many sources note that inverter fridges are more durable and require fewer repairs [Web ID: 3] [Web ID: 4] [Web ID: 19].
  • Traditional Fridge: The constant on-off cycling in a traditional fridge puts more stress on the compressor, which can lead to faster wear and a higher likelihood of mechanical failure over time. This can result in more frequent repairs and a shorter lifespan [Web ID: 3] [Web ID: 18].
  • Verdict: Inverter fridges tend to be more durable and long-lasting, which can save money on maintenance and replacements in the long run.
5. Cost
  • Inverter Fridge: Inverter fridges typically have a higher upfront cost, often 15-30% more expensive than traditional models, due to the advanced technology. For example, some sources mention a price difference of around ₱2,000–₱4,000 (roughly $40–$80 USD, depending on exchange rates) for comparable models [Web ID: 3] [Web ID: 6]. However, the energy savings can offset this initial cost over time. One analysis suggests that the savings from lower electricity bills can recoup the extra cost within about five years [Web ID: 3].
  • Traditional Fridge: Traditional fridges are generally cheaper to purchase, making them more budget-friendly upfront. However, their higher energy consumption can lead to greater long-term costs through electricity bills [Web ID: 4].
  • Verdict: Traditional fridges win on initial cost, but inverter fridges are often more cost-effective over time due to energy savings. The choice depends on your budget and how long you plan to use the fridge.
6. Environmental Impact
  • Inverter Fridge: By consuming less electricity, inverter fridges reduce your carbon footprint. Some models also use eco-friendly refrigerants and emit fewer greenhouse gases, making them a more environmentally conscious choice [Web ID: 8] [Web ID: 13].
  • Traditional Fridge: Traditional fridges use more electricity, which contributes to higher greenhouse gas emissions, especially if the electricity comes from fossil fuel sources. They are generally less eco-friendly due to their inefficiency [Web ID: 13].
  • Verdict: Inverter fridges are better for the environment, aligning with growing demands for sustainable appliances.
7. Other Considerations
  • Cooling Speed: Some users note that traditional fridges may cool faster initially because they run at full speed when the compressor is on. Inverter fridges, while efficient, may take slightly longer to reach the desired temperature after a power cut or when first turned on, as they gradually ramp up speed to save energy [Web ID: 24]. However, this difference is often negligible in day-to-day use.
  • Maintenance and Repairs: Inverter fridges have more complex technology, which can make repairs more expensive and harder to source if something goes wrong. Some brands may also lack reliable customer service or spare parts, which is worth researching before buying [Web ID: 24]. Traditional fridges, with simpler technology, may be easier and cheaper to repair.
  • Power Backup Compatibility: Inverter fridges require less startup current, making them more compatible with smaller inverters or generators during power outages. Traditional fridges, with their high startup surge, may need a larger backup system [Web ID: 16].
    Final Thoughts: Which Is Better?
Whether an inverter fridge is better than a traditional fridge depends on your priorities:
  • Choose an Inverter Fridge If: You value energy efficiency, quieter operation, better food preservation, and long-term savings. They’re ideal for environmentally conscious users, those with open-plan living spaces, or anyone who wants a fridge that lasts longer with fewer repairs. The higher upfront cost is often justified by the savings on electricity bills over time.
  • Choose a Traditional Fridge If: You’re on a tight budget and prioritize a lower initial cost over long-term savings. They may also be preferable if you need faster initial cooling (e.g., in very hot climates with frequent power cuts) or if you’re concerned about the availability of repair services for more complex inverter technology.
Overall Recommendation: In most cases, an inverter fridge is the better choice due to its energy efficiency, quieter operation, better performance, and longer lifespan. While the upfront cost is higher, the long-term benefits—both financial and environmental—make it a worthwhile investment for most households. However, if budget constraints are a major concern, a traditional fridge can still get the job done, albeit with higher running costs and less efficiency.[/list]
If you’d like to explore specific models or brands of inverter fridges, or if you have concerns about your kitchen setup, let me know, and I can dig deeper!
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Joeboy
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Re: ASHP & triple glazing

#1213

Post by Joeboy »

Cheers Stinsy, looks like the inverter units are a winner. There is almost zero noise from our fridge freezer here. It radiates the heat out of the sides of the unit rather than the rear venting compressor type we all grew up with.

We'll see if there is a noticeable difference in the inverter washing machine. Swmbo likes it as it has a 14 min cycle. I like it as it's 8kg up 1kg from old unit. 1,000rpm as opposed to the 1,400 rpm units we like at home. It might even be quieter..

I first noticed the benefit of the inverter type when we stepped up from a traditional compressor type aircon to an inverter type heat pump air con.
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nowty
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Re: ASHP & triple glazing

#1214

Post by nowty »

The Fridge Freezer my Mum bought in 2022 has a variable speed compressor,
Image


Even though the new one is much larger it almost halved the entire house leccy load,
Her average leccy per day before new fridge freezer 4.22 kWh.
Her average leccy per day after new fridge freezer 2.32 kWh.
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Joeboy
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Re: ASHP & triple glazing

#1215

Post by Joeboy »

nowty wrote: Mon Apr 14, 2025 1:25 pm The Fridge Freezer my Mum bought in 2022 has a variable speed compressor,
Image


Even though the new one is much larger it almost halved the entire house leccy load,
Her average leccy per day before new fridge freezer 4.22 kWh.
Her average leccy per day after new fridge freezer 2.32 kWh.
That's a great result for your Mum. Our watercooler/heater is a compressor type. I expect when it finally fails we'll have went inverter type there too.
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
73kWh V2H EV
7kW ASHP
200ltr HWT.
3G
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit
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Joeboy
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Re: ASHP & triple glazing

#1216

Post by Joeboy »

Electricity bill in for the last month. It came in yesterday after meter reading taken....£4.

We also received our council tax bill for the coming year £11.50 for each of us.

I reckon this is another 'way'. Inverter driven gear, couple of panels on a Hoymiles. Hot climate. Defo chasing down an inverter type washing machine for home. We are running on a secondhand unit from one of the rental property sales at the moment. Come the day though...

The inverter machines are everywhere here and they push it as a pro in their ad campaigns. Why not back on the island?

Cui bono?
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Ronski
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Re: ASHP & triple glazing

#1217

Post by Ronski »

I think direct drive washing machines are referred to as inverter washing machines, but perhaps not so much in the UK.

Our Bosch Series 6 washing machine is direct drive, and it does have a 15 minute wash cycle, although we use the 60 minute cycle.

There also seems to be quite a lot of inverter fridge/freezers available.
Moxi
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Re: ASHP & triple glazing

#1218

Post by Moxi »

Yeah our washer is an inverter motor - Samsung series 5 AI eco bubble at least one wash a day for the last year and we are delighted with it.

Moxi
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Stinsy
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Re: ASHP & triple glazing

#1219

Post by Stinsy »

Joeboy wrote: Mon Apr 14, 2025 4:13 pm Electricity bill in for the last month. It came in yesterday after meter reading taken....£4.

We also received our council tax bill for the coming year £11.50 for each of us.
We are totally ripped off in this country!
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
6x 2.4kWh Pylontech batteries (14.4kWh)
LuxPower inverter/charger

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Joeboy
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Re: ASHP & triple glazing

#1220

Post by Joeboy »

Stinsy wrote: Mon Apr 14, 2025 6:38 pm
Joeboy wrote: Mon Apr 14, 2025 4:13 pm Electricity bill in for the last month. It came in yesterday after meter reading taken....£4.

We also received our council tax bill for the coming year £11.50 for each of us.
We are totally ripped off in this country!
Glad to hear they are not scarce. Thought for a moment that I'd stumbled on a conspiracy! :lol:

The A2A's are both now off here. There will be a magic few weeks when they won't be needed then into cooling mode. Fortunately we can spend a lot of the year just running on cross ventilation flowing down from the mountains behind the village.

Stinsy, yes indeed! We are £2,700 pa council tax back in Scotland.

0.0085% of the Scottish figure here in Turkey.
15kW PV SE, VI, HM, EN
42kWh LFPO4 storage
73kWh V2H EV
7kW ASHP
200ltr HWT.
3G
Deep insulation, air leak ct'd home
WBSx2
Low energy bulbs
Veg patches & fruit
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