The Harvey Crown Vs Harvey TwinTec S4
The Harvey Crown Vs Harvey TwinTec S4
When it comes to deciding the best Harvey water softener between the Harvey Crown and the Harvey TwinTec S4 - it can be a tough decision. To make sure you are getting the best value for money we have written this Harvey Crown Vs Harvey TwinTec S4 Review.🆚 Harvey Crown vs TwinTec S4: Quick Comparison
| Harvey Crown | TwinTec S4 | |
|---|---|---|
| ⚙️ System Type | Non-electric, twin-cylinder | Non-electric, twin-cylinder |
| 💧 Water Efficiency | Can lack efficiency due to being an older model | Proven, high-efficiency with lowest running costs |
| 🧂 Salt Type | Standard salt blocks | Standard salt blocks |
| 📐 Dimensions | Compact | Slimmer, cupboard-friendly |
| 🔧 Installation | DIY or professional | DIY or professional |
| 💷 Price Range | £975 | £1124.99 |
| 🔁 Regeneration Frequency | Optimised for UK usage | Optimised for UK usage & proven low-salt use |
| 🛡️ Warranty | Up to 5 years | Up to 10 years |
💬 Customer Reviews & Reddit Feedback: Why TwinTec S4 Is Often Preferred Over Harvey Crown
Choosing between the Harvey Crown and TwinTec S4? Here’s what real users are saying:
- - Users consistently praise the TwinTec S4's long-term reliability, compact design, and low salt use. Many are repeat buyers upgrading from older models.
- - customers also love the S4's value for money and ease of installation, often choosing it for first-time water softener setups or rental homes.
🏆 Praise for TwinTec S4 Over More Expensive or Older Models:
“The Twintec softener was here … It developed a fault … the installer basically rebuilt it all free of charge under the 10‑year warranty … Other than that it just does the job.”- Reddit
“The Twintec S4 at £1100 seems like a much better deal” - Reddit
✅ General Community Recommendation for TwinTec S4:
“If it’s for a family home – definitely the Harvey TwinTec S4. Same spec as the Harvey Arc but much cheaper. Best efficiency and lowest running costs. Although it's sold in the UK.” - Reddit+10Reddit+10Reddit+10
“I would go for a non-electric twin tank and something like the Harvey TwinTec S4 … it has a good efficiency and 10 year warranty.” - Reddit
🔍 An In Depth Comparison
The Harvey TwinTec S4
Harvey Water Pressure & Flow Rate - TwinTec
Flow Rate: 56L/min,
Pressure: 1-10
Bar. The Harvey
TwinTec system is specifically designed for family homes with 3-4 bathrooms. It
has a high pressure scale and a high flow rate. This is important, because
lower values will result in a reduction in water pressure in the home –
especially if more than one person is using a water outlet at the same time.
The Harvey Crown Model
Crown Water Pressure and Flow Rate
Flow Rate: 30-40L/min,
Pressure: 1-8
Bar. The Harvey crown
water pressure & flow rate are lower than the TwinTec. Flow rate effects the flow of water to the home, how much soft water can enter at any given time. Flow rate and pressure are important in homes with 3+ bathrooms and multiple
occupants. The more people using the water – the higher the flow rate needs to be.
Harvey Efficient Regeneration – Harvey TwinTec Water & Salt Usage
Efficiency: Non-electric, uses 300g of salt & 17L of water per regeneration.
RegenerationTime: 11 minutes.
The TwinTec S4 has the best efficiency
of any domestic water softener. This means, it offers lower running costs when compared to other models such as the Harvey Crown. It also has the most efficient regeneration with a time of just 11 minutes, using only 300g of salt
and 17L of water per regen.
Crown Regeneration Efficiency - Time, Water & Salt Usage
Efficiency: Non-electric,
uses 350g of salt per regeneration and 23L of water.
Regeneration Time: 11 minutes.
The Harvey Crown uses a less advanced internal resin, manufactured over 20 years ago. This means that its ability to soften very hard water can be compromised. It also has a higher salt and water usage per
regeneration, meaning its running costs are higher than the TwinTec model.
Harvey Compact Design – TwinTec Water Softener Dimensions
The TwinTec S4 is the most compact model available, meaning
it can be easily installed under the kitchen or utility sink.
Dimensions: Depth 440mm, Height 490mm, Width 205mm.
Crown Compact Design – Harvey Crown Softener Dimensions
The Crown Softener is slightly bigger than the
Harvey S4 but still offers a small size.
Dimensions: Depth 460mm, Height 490mm, Width 212mm.
Harvey Twin Tank & Continuous Supply
The Harvey S4 is a twin tank / dual cylinder water softener, meaning it provides a continuous supply of soft water.
Crown Twin Tank System & Supply of Soft Water
The crown is also a twin tank / dual cylinder water softener, meaning it provides a continuous supply of water.
Harvey Reliability & Warranty - TwinTec Model
The TwinTec water softener is a much more reliable model to
purchase. This system offers a 10 year parts warranty, as well as a 2 year
labour warranty. The system is also accredited by the WRAS. It is one of the
latest models, meaning it has up to date technology and an advanced internal
resin built to last.
Harvey Crown Reliability & Warranty
The Harvey Crown – may be considered less reliable than the TwinTec S4, especially when comparing the warranty period. Its warranty is half that of the TwinTec, at 5 years for parts. To put it simply, the Crown softener is not likely to last as long as the TwinTec S4, a shorter lifespan of the system ultimately means - a shorter warranty. Its design and production was established over 20 years ago – meaning the technology is dated and may be less efficient.
Harvey TwinTec Price
The Price of the Harvey TwinTec S4 is £1149.99 or £1124.99 with a discount code. This product is built to last 10-20 years.
Harvey Crown Price
The Harvey Crown Price can vary from £900 - £1000. The life
span of the product can be based on its warranty – which is 5 years. To put this into perspective - the warranty of the TwinTec is 10 years. This means you’ll only be paying around £149.99 for an extra 5 years of soft water. With the Crown,you could be paying more in the long run, not only for salt & water, but also to replace the product at the end of its lifespan.
Harvey Crown Vs TwinTec – Which is the Better Model For You?
Here is a summary list of the pros and cons of both the Harvey TwinTec & the Crown.
What are the Pros of the Harvey TwinTec Water Softener?
- - High Flow Rate but Compact Design: at 56L/min, this system is perfect for the family home and those with 3-4 bathrooms.
- - Non-Electric: Operates without electricity.
- - Advanced Features: Improved design and efficiency.
- - High Efficiency & Efficient Salt Usage: this model uses the least salt and water of any domestic system – making it the most efficient with lowest running costs.
- - Twin Tank System: Similar continuous supply of soft water.
- - Block Salt: Uses easy-to-handle block salt.
- - Harvey Eco-Friendly: This system is more eco-friendly than the Harvey Crown and is made using recycled materials.
What are the Pros of Buying the Harvey Crown Water Softener?
- - Non-Electric: Operates without electricity, using water pressure.
- - Compact Design: Fits easily under kitchen sinks.
- - Twin Tank System: Ensures a continuous supply of soft water.
- - Block Salt: Uses easy-to-handle block salt.
What are the Cons of the Harvey TwinTec Water Softener?
- - Simplicity: Lacks some advanced smart phone features found in other high-end models like digital controls or ultra-efficient salt usage.
What are the Cons of the Harvey Crown Water Softener?
- Simplicity: Lacks some advanced smart phone features found in other high-end models like digital controls or ultra-efficient salt usage.
- Lower Efficiency: Uses more salt and more water per regen.
- A Much Older Model: meaning the technology is dated. There has been many improvements to the Harvey Water Softener in the last 20 years, since this model was released.
- Shorter Warranty & Life Span: the warranty is half that of the TwinTec, but price is very similar.
- Lower Flow Rate: May affect water pressure – especially in homes with more bathrooms and occupants.
🛒 Which One Should You Buy?
Opting for the Harvey TwinTec S4 over the Crown means benefiting from advanced efficiency, modern design, and enhanced performance, making it a more cost-effective and reliable choice in the long run.
While the Harvey Crown is effective and reliable, these drawbacks might make other models more appealing depending on individual needs and preferences.
For example, those living in very hard water areas, with 3-4 bathrooms and multiple occupants may benefit better from the TwinTec S4 model. It's higher flow rate and pressure capacity with smart shuttled metering, means the S4 is manufactured to cater for all different British plumbing systems including gravity fed tanks in the loft, combination boilers and high flow unvented hot water cylinders.
❓ Frequently Asked Questions
🆚 What's the main difference between the Harvey Crown and TwinTec S4?
The S4 is the premium flagship model, known for its ultra-compact design and long-term performance. The Crown offers a slightly lower price point and is an older model.
📏 Which softener is better for small UK kitchens?
Both are compact, but the TwinTec S4 is slightly slimmer and may fit better under narrow sink spaces.
🔌 Are these water softeners electric?
No — both are fully non-electric and use twin-cylinder technology.
🧂 Is salt usage different between the two?
The S4 is slightly more efficient over time, but both use standard Harvey salt blocks.
🧰 Can I install them myself?
Yes, especially if you’re replacing an old softener. Harvey includes detailed installation kits and guides.
🛠️ What’s the warranty difference?
The S4 has a 10-year warranties when purchased from authorised dealers like NE Water Softeners. But the Crwon only has a 5 year warranty.
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