Instant Hot Water Tap
An instant hot water tap is one of the most useful upgrades you can make in a modern kitchen. Instead of waiting for a kettle to boil or running the main tap again and again, this smart tap gives you near-boiling water instantly, right when you need it.
From making tea and coffee to cooking, cleaning, and washing up, instant hot water taps save time, energy, and effort every single day.
This guide explains what an instant hot water tap is, how it works, its benefits, installation, running costs, and how to choose the best one for your home.
What Is an Instant Hot Water Tap?
An instant hot water tap is a special kitchen tap that delivers hot or boiling water instantly. It works with a small tank or heating system installed under your sink.
Unlike a kettle or traditional tap:
No waiting
No re-boiling water
No wasted energy
You simply turn the handle, and hot water flows immediately.
Many modern instant hot water taps also provide:
Cold water
Normal hot water
Filtered water
Chilled or sparkling water (on advanced models)
How Does an Instant Hot Water Tap Work?
Instant hot water taps use a compact heating tank or electric heating system under the sink.
Here’s how it works in simple steps:
Cold water enters the system
The water is heated and stored at a high temperature
When you turn the tap, hot water comes out instantly
The tank refills and reheats automatically
Most systems heat water to 98°C, which is perfect for tea, coffee, and cooking.
Key Benefits of an Instant Hot Water Tap
1. Instant Convenience
No more waiting for kettles or pans to heat up. Hot water is ready any time, day or night.
2. Saves Time Every Day
Making drinks, cooking pasta, or washing dishes becomes faster and easier.
3. Energy Efficient
You only heat the water you use. This reduces:
Electricity usage
Gas consumption
Energy waste
Over time, this helps lower household bills.
4. Cleaner and Safer Kitchen
No boiling kettles
Less steam
Reduced risk of spills
Many taps also include child safety locks.
5. Modern Kitchen Look
Instant hot water taps are stylish and sleek, giving your kitchen a premium, modern finish.
Types of Instant Hot Water Taps
Single Function Hot Water Taps
These provide hot water only and work alongside your existing tap.
3-in-1 Instant Hot Water Taps
One tap delivers:
Cold water
Hot water
Instant boiling water
Perfect for compact kitchens.
4-in-1 and 5-in-1 Taps
These advanced models offer:
Cold water
Hot water
Boiling water
Filtered water
Chilled or sparkling water
Ideal for high-end kitchens and families.
Are Instant Hot Water Taps Safe?
Yes, modern instant hot water taps are very safe when installed correctly.
Safety features often include:
Child-safe handles
Spring-loaded taps
Insulated spouts
Pressure control systems
These features help prevent accidental burns and overheating.
Installation of an Instant Hot Water Tap
Professional Installation Is Recommended
Although some taps look simple, proper installation is important for:
Electrical safety
Water pressure balance
Warranty protection
A professional installer will:
Fit the tap correctly
Install the tank securely
Test pressure and temperature
Ensure safe operation
Most installations are completed in 1–2 hours.
Do Instant Hot Water Taps Need a Filter?
Many instant hot water taps include built-in water filtration.
Filtered water:
Tastes better
Reduces limescale
Protects the heating system
Extends tap lifespan
In hard water areas like London, filters are highly recommended.
Running Costs and Energy Use
Instant hot water taps are designed to be energy efficient.
Typical benefits:
Lower electricity use than kettles
Reduced water waste
Minimal standby energy
Most systems only use power when reheating the tank, not constantly.
Maintenance and Care
Instant hot water taps are low-maintenance.
Basic care includes:
Changing filters every 6–12 months
Occasional tank checks
Wiping the tap surface
Regular maintenance keeps the system working smoothly for years.
Who Should Buy an Instant Hot Water Tap?
An instant hot water tap is perfect for:
Busy families
Home cooks
Offices and workspaces
Elderly users
Modern kitchen upgrades
If you value speed, safety, and convenience, this tap is a smart choice.
Instant Hot Water Tap vs Kettle
| Feature | Instant Hot Water Tap | Kettle |
|---|---|---|
| Speed | Instant | Slow |
| Energy Use | Efficient | Higher |
| Safety | High | Moderate |
| Convenience | Excellent | Limited |
| Design | Built-in | Countertop |
How to Choose the Best Instant Hot Water Tap
When buying, look for:
Heating speed
Tank size
Safety features
Filter compatibility
Build quality
Warranty
Professional installation support
Always choose a trusted supplier and installer.
Common Questions About Instant Hot Water Taps
Is boiling water really instant?
Yes. The water is pre-heated and stored, so it flows immediately.
Can it replace my kettle?
For most homes, yes. Many people stop using kettles entirely.
Does it work with low water pressure?
Most systems are designed to work with standard UK water pressure.
How long do instant hot water taps last?
With proper maintenance, many systems last 10 years or more.
Why Instant Hot Water Taps Are Growing in Popularity
Instant hot water taps are becoming common in UK homes because they:
Save time
Reduce clutter
Improve kitchen efficiency
Add value to the property
They are no longer a luxury – they are a practical upgrade.