Higher-Capacity Water Softening for Larger Households
A 16-litre metered cabinet water softener designed for households of five or more people, providing approximately 2,600 litres of softened water between regenerations.
- Recommended for households of 5+ people
- 16-litre cabinet capacity
- Approximately 2,600 litres of softened water between regenerations
- Suitable for combi boilers, vented and unvented systems
Higher Capacity
Designed for households of five or more people, with a 16-litre cabinet for increased demand.
Metered Operation
Regeneration is controlled by water use, helping the system operate efficiently rather than relying on a simple fixed timer.
Full-Flow Hoses Included
Supplied with full-flow hoses as standard to support domestic installation and good water flow.
24-Month Warranty
Manufacturer parts and labour warranty for manufacturing faults, subject to registration and warranty conditions.
More Softened Water Between Regenerations
The WCW 1650 is the larger model in the World Class Water domestic range. Its 16-litre cabinet supplies approximately 2,600 litres of softened water between regenerations, making it better suited to larger households and higher daily demand.
- 5+ person household recommendation
- 16-litre cabinet
- Approx. 2,600 litres between regenerations
- 580mm high × 280mm wide × 480mm deep
Designed for Reliable Everyday Use
The World Class Water 1650 combines a larger-capacity cabinet with automatic metered control, making it a strong option for busy family homes where water demand is higher throughout the day.
- Higher-capacity 16-litre cabinet
- Automatic metered regeneration
- Designed for larger households
- Compact cabinet format for domestic installation
Meter-Controlled for Efficient Regeneration
The electronic controller is set to the incoming water hardness and manages regeneration according to use. This helps match salt and water consumption to the actual needs of the household.
Designed Around Your Water Supply
The incoming hardness setting should be matched to the local mains supply during commissioning. The manufacturer guide also allows the regeneration time and controller settings to be configured.
If you are unsure of your local hardness level, check it before setup so the softener can be programmed accurately.
Core Installation Components Supplied
The manufacturer supplies the main connection components needed for the softener itself. Additional site-specific fittings may still be required by the installer.
- World Class Water metered cold-water softener
- Salt lid
- 2 × full-flow stainless steel hoses
- Drain hose
- Half-inch overflow hose
- Outlet hose mesh washer insert
Compatible with Common UK Domestic Plumbing Systems
World Class Water states that the 1650 can be used with combination boilers, vented systems and unvented hot-water systems when installed correctly.
Combination Boilers
Install on the incoming mains feeding the boiler and domestic cold-water system, using suitable large-bore connections to support flow.
Unvented Cylinders
The softener can be installed upstream of the unvented cylinder and associated controls on a mains-pressure system.
Vented Systems
The manufacturer lists the WCW 1650 as suitable for vented domestic plumbing systems when correctly installed.
Untreated Drinking Water
The installation guide recommends leaving a suitable tap supplied with untreated mains water, typically the kitchen cold-water tap.
Whole-Home Limescale Protection
Installed on the incoming mains supply, the 1650 softens water before it reaches showers, taps, boilers and household appliances. This helps reduce new limescale deposits throughout the property while improving the performance of soaps and detergents.
- Helps protect boilers and hot-water equipment
- Reduces scale around taps, showers and surfaces
- Helps protect washing machines and dishwashers
- Supports more effective use of soaps and detergents
Key Installation Requirements
World Class Water 1650 Specifications
| Recommended household size | 5+ people |
|---|---|
| Cabinet capacity | 16 litres |
| Softened water between regenerations | Approximately 2,600 litres |
| Height | 580mm |
| Width | 280mm |
| Depth | 480mm |
| Operation | Meter-controlled automatic regeneration |
| Compatible systems | Combination boilers, vented and unvented systems |
| Minimum incoming pressure | 1.5 bar |
| Installation environment | Indoor, dry and frost-free |
| Ambient temperature | 5°C to 40°C |
| Maximum incoming water temperature | 30°C |
| Salt type | Tablet or pebble salt |
| Connection hoses | Full-flow hoses supplied as standard |
| Warranty | 24-month manufacturer parts and labour warranty, subject to registration and conditions |
Official World Class Water Softener Installation Guide
View the manufacturer guide covering installation requirements, plumbing layouts, controller setup, commissioning, salt use, warranty terms and registration.
World Class Water 1650 FAQs
How many people is the WCW 1650 suitable for?
World Class Water recommends the 1650 for households of five or more people.
How much softened water does it provide between regenerations?
The manufacturer states that the WCW 1650 supplies approximately 2,600 litres of softened water between regenerations.
Is the WCW 1650 automatic?
Yes. It is meter-controlled and automatically manages regeneration according to water use and the programmed hardness setting.
Can it be installed with a combi boiler?
Yes. World Class Water lists the 1650 as suitable for combination boiler systems when correctly installed.
Can it be used with an unvented cylinder?
Yes. The manufacturer states that the WCW 1650 is suitable for both vented and unvented systems.
What salt does it use?
Use tablet or pebble water-softener salt. The manufacturer recommends checking the salt level regularly and keeping it above the water level.
Does it come with installation hoses?
Yes. Full-flow hoses are supplied as standard. Other site-specific fittings, including the bypass, may need to be supplied by the installer.
What are the dimensions?
The WCW 1650 measures 580mm high, 280mm wide and 480mm deep.
What warranty does it have?
The manufacturer provides a 24-month parts and labour warranty for manufacturing faults, subject to its terms and registration requirements.
Looking for a More Compact Water Softener?
The World Class Water 1050LL is the smaller 10-litre model, designed for households of two to four people where installation space is more restricted.
Need Help Choosing the Right Water Softener?
Not sure whether the World Class Water 1650 is the right size for your home? Our technical team can help you assess household demand, water hardness, plumbing compatibility and installation requirements before you order.
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