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in stock

Cistermiser Combimate Limescale Prevention Device 15mm | Com1

Product Code: 5014308060807

€249.99

Home Delivery

Click & Collect

Description

For single appliances or 'whole house' water supply
Install on vertical and horizontal pipework
Easy annual Combiphos refill
800g Combiphos included
Connection size: 15mm

Cistermiser Combimate Limescale Prevention Device 15mm | For Whole House

Combimate is a user-friendly domestic limescale prevention device that uses Combiphos to deliver guaranteed prevention of limescale and soft water corrosion water control, with no moving parts. Combiphos is a polyphosphate compound specifically developed to provide the most effective limescale prevention in flow-through installations. Polyphophate dosing has been safely used to treat water throughout the world for many years.

There are two installations options when fitting Combimate:

Whole-house supply - For this installation Combimate should be plumbed in after the stop-valve on the cold water supply to the premises. The white removable divider tray should be removed from inside the Combimate dome in a whole house installation so that the dome can be completely filled with Combiphos (the full 800g bag contents).
Single appliance - Combimate can be used to protect a single appliance by placing it on the cold water supply to that appliance (e.g. a boiler), in which case the red removable divider tray should be left in place and Combiphos should only be put in the top half of the dome. This reduces the amount of Combiphos required for annual topping-up (in this situation, the 800g bag will last two years).

Features & Benefits of Combimate Limescale Reducer

Money saving

Ensures your water heating system efficiency is maintained
Keeps energy costs down
Avoid expensive repairs / replacement of boilers and water fittings
Removes need for chemical de-scaling products

Effectiveness

Protects domestic water systems against hard water limescale and soft water corrosion
Extends the life of your water installation
Helps maintain your home’s energy efficiency
Avoids the time & labour of removing stubborn scale

Installation

Compact size – easy to locate without losing precious space
Configuration options – easy fitment to nearly any pipe configuration
Simple compression fittings – clearly marked inlet and outlets with interchangeable fittings
No electrics or drainage required – no need for an electrician or additional plumbing

Operation

Totally automatic system – no user interaction required
Energy-free – no power required
Automatic water shut off – easy maintenance and a useful home safety feature
Completely safe for human consumption

Maintenance

Only requires an annual refill – a five-minute task
Just a handful of Combiphos needed to refill – no need for bulky salt sacks or heavy lifting
A DIY job that requires no special tools.

What is the advantage of Combimate compared to other water treatment systems?

Combimate is a widely recognised, proven hard water scale inhibitor that since its launch in 1987 has delivered protection to hundreds of thousands of homes.
Combimate does not use magnets or any electricity in its anti limescale operation and is both easy to install with minimal maintenance.
The product is also supported by a professional customer service team with first class technical and spares support.

Do I need a separate (non-treated) drinking supply?

No. Combimate is not a water softener; water softeners generally use salts so softened water requires a separate supply because of the increased salt content.

What do the Combiphos crystals do to the water?

Combiphos which, when in contact with water is released in very small quantities, is sufficient to keep the mineral ions in suspension. This action prevents the formation of scale while retaining the health benefits of the natural minerals contained in hard water.

Will it discolour my clothes?

No. Combiphos has no effect at all on fabrics.

Will Combimate protect my central heating system?

In a central heating system, Combimate will only protect the boiler via the mains water feed into the heat exchanger. However, the ‘closed loop’ of the heating system (radiators, pipework etc) is not protected. Combiphos coats the inside of the pipework, boiler heat exchanger and appliances with a non-residual, microscopic, protective coating to prevent scale-causing minerals from accumulating and aggressive soft water from corroding the system and appliances.

Does Combimate need maintenance?

Apart from the annual replacement of the Combiphos crystals, Combimate requires no other maintenance.

Does heat affect the Combimate?

Yes. If the Combimate is located in a warm environment (e.g an airing cupboard) or near a heat source, the Combiphos crystals will dissolve at a faster rate. Ideally Combimate should be installed at room temperature with a cold water supply, located at least 450mm from any appliance or local heat source to prevent water in the dome from warming and accelerating the dissolution of the Combiphos.

Can I replace the Combiphos crystals myself?

Yes. Replacing the Combiphos is easy if the procedure is correctly followed or refer to the owner’s manual supplied with the Combimate unit.

Do I need a plumber to fit the Combimate unit?

Fitting the combimate requires a basic competency level of plumbing skills and equipment. However, for peace of mind we recommend a professional plumber installs the product.

Can you drink water that passes through the Combimate?

Yes. Combiphos is classed as a 'food grade' additive which conforms to European Standards EN1208 and World Health Organisation standards as a safe additive to drinking water.

Shipping & Delivery

We are pleased to offer FREE delivery on orders over €299.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders. All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Same Day Dispatch for €9.99* - Orders must be placed before 12pm (Excluding Bulky Items)

Delivery Costs to Republic of Ireland are €6.99 for orders Under €299.00

We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

Large Bulky Items

Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €29.99 to ROI

View our full Delivery & Collection information

Returns Policy

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase.

View our Full Returns Policy

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Why Shop With Us?

Frequently Asked Questions

How Combimate Works?

Combimate is plumbed directly on the cold water supply to the property or appliance to protect the hot water system. As mains water flows through the Combimate, the water comes into contact with Combiphos.

The phosphate within Combiphos coats the inside of a home’s pipework, boiler heat exchanger and appliances with a non-residual, microscopic, protective coating to prevent scale-causing minerals from accumulating and aggressive soft water from corroding the system and appliances.

What is Limescale?

Limescale is the most visible symptom of hard water. It is comprised of calcium and magnesium, two minerals that form a residue when hard water is heated and evaporates.

This residue forms as a white chalky scum, commonly found around taps, the bath, basins and shower cubicles. Limescale is an unwanted substance and is difficult to remove.

Where is Limescale in your home?

Limescale can form on any surface where water is heated, including the internal surfaces of pipework and boilers. Below is a list of places where your home is vulnerable to the damaging effects of limescale formation:

Boilers, shower head & screens, thermostatic valves, immersions, pipework, washing machines, taps and even electric kettles.

Does Heavins.ie offer promo codes, first-order discounts, or free shipping?

Yes! We regularly run promotions including free shipping thresholds, limited-time discounts, and exclusive first-order coupon codes - Subscribe Here >

Can I recycle my old appliance or electrical item with Heavins.ie?

Yes, Heavins.ie is fully committed to environmental responsibility and participates in Ireland’s WEEE (Waste Electrical and Electronic Equipment) recycling scheme. That means when you buy a new electrical item from us, we offer free recycling of your old appliance or electrical item.

What happens if I need to return my order?

If you change your mind or need to return an item for any reason, we’ve got you covered with a comprehensive returns policy. Returns must be scheduled within 14 days of purchase, and the item must be returned in sellable condition, including original packaging where possible. Just contact our team to arrange a hassle-free return - Returns Policy >

Why shop with Heavins.ie?

Heavins.ie is a proud, 100% Irish-owned, family-run business based in Athlone. When you shop with us, you're supporting local jobs, local service, and a business that’s been part of the community for over 40 years.

We don’t just say we care - it’s recognised too. Heavins.ie was named Most Trusted Website of the Year and has won the Midlands Best Customer Service award, thanks to our focus on honest service, fast Irish delivery, and real customer care.