The Harvey Minimax Vs The Harvey Twintec S4 – Which One Should You Choose?
When looking for a reliable and efficient water softener, the Harvey Minimax (M2 or M3) and the Harvey Twintec S4 often appear side by side. So the question is, The Harvey Minimax vs The Harvey Twintec S4 – Which One Should You Choose? While the names differ, the truth is simple:
They're effectively the same product, made in the same warehouse — but are not the same price.
Both are designed and manufactured by Harvey, known for their non-electric twin-cylinder technology. So, what's the real difference? Let's break it down.
Specification Comparison
| Feature | Harvey Minimax M2/M3 | Harvey Twintec S4 |
|---|---|---|
| Manufacturer | Harvey Water Softeners | Harvey Water Softeners |
| Cylinder System | Twin-cylinder | Twin-cylinder |
| Power Source | Non-electric (water-powered) | Non-electric (water-powered) |
| Salt Type | Block salt | Block salt |
| Regeneration | Automatic, demand-based | Automatic, demand-based |
| Installation | Under-sink compatible | Under-sink compatible |
| Flow Rate | Up to 56 litres per minute | Up to 56 litres per minute |
| Water Hardness Capacity | High | High |
| Warranty | Typically 10 years* | Typically 10 years* |
* Warranty length should be 10 years labour and 2 years parts for both but can differ if the unit is refurbished.
Flow Rate
Both the Minimax and Twintec S4 deliver a strong flow rate of up to 56 litres per minute, making them suitable for both small and large households. Their twin-cylinder design ensures soft water 24/7, even during regeneration cycles — meaning no interruptions.
Efficiency
Thanks to their non-electric, demand-based regeneration systems, both models are among the most efficient softeners on the market. They only regenerate when needed, reducing salt and water usage. They use the least amount of salt of any domestic water softener at 300g per regen cycle.
They also use standard block salt, which is easy to handle, widely available, and cleaner than loose tablet salt.
The Harvey Minimax Price
Here’s where things get interesting.
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Harvey Minimax M2/M3 is typically sold online for around £1,450, although some dealers have been known to discount the unit.
-
Harvey Twintec S4 is available from NE Water Softeners online for just £1,124.99.
That's a savings of £325, for what is effectively the same product — manufactured by the same brand, with identical performance and features.
Final Verdict: The Harvey Minimax Vs The Harvey Twintec S4 - Why Pay More?
The Harvey Twintec S4 gives you all the benefits of the Minimax, without the premium price tag. Whether you’re looking for soft skin, limescale-free appliances, or just better-tasting water, the S4 delivers — and does it more affordably. By choosing the Twintec S4 you can hopefully save money and enjoy premium water softening at the best possible value.
