Standard electric kettle vs Instant hot water tap
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Cost-effective (most households), portable, no installation, easy replacement.
Kitchen renovation context, frequent hot water use throughout day, prepared to pay premium for convenience.
| Aspect | Standard electric kettle | Instant hot water tap |
|---|---|---|
| Upfront cost | £20-80 | £500-2,000+ (installed) |
| Convenience | Good | Excellent |
| Energy use (daily) | 0.1 kWh (one kettle) | Small standby draw + per use |
| Temperature | 100°C (sea level) | 97-98°C (near boiling) |
| Payback vs kettle | N/A | Often 20+ years (Which? estimate) |
Frequently asked
Does an instant hot water tap actually save energy?
No — it typically uses slightly more due to standby heat loss from the insulated tank. The advantage is convenience and speed, not energy saving. Modern Quooker tanks are well-insulated but still lose some heat constantly.
What temperature is needed for tea?
Green tea: 70-80°C. White tea: 65-75°C. Black tea, English Breakfast, Earl Grey: 95-100°C. Instant hot water taps at 98°C are ideal for black tea. If you drink green or white tea, a temperature-controlled kettle (£30-80) may actually be more useful.
Frequently asked questions
Does an instant hot water tap actually save energy?
No — it typically uses slightly more due to standby heat loss from the insulated tank. The advantage is convenience and speed, not energy saving. Modern Quooker tanks are well-insulated but still lose some heat constantly.
What temperature is needed for tea?
Green tea: 70-80°C. White tea: 65-75°C. Black tea, English Breakfast, Earl Grey: 95-100°C. Instant hot water taps at 98°C are ideal for black tea. If you drink green or white tea, a temperature-controlled kettle (£30-80) may actually be more useful.