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Best Instant Water Heaters

Tankless Water Heater Comparison 2025

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Best Product
Stiebel Eltron DCE 11/13
Stiebel Eltron DCE 11/13
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Amazon
Bestseller
AEG DDLE Basis 18/21/24
AEG DDLE Basis 18/21/24
Check Price
Amazon
Best Price
thermomate ELEX5.5
thermomate ELEX5.5
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Amazon
Stiebel Eltron DNM 3
Stiebel Eltron DNM 3
Check Price
Amazon
TTulpe Indoor B-6
TTulpe Indoor B-6
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Amazon
Our Ratings
Model
Customer Ratings
Seller
Available From
Manufacturer
Material
Dimensions
Colour
Weight
Remote control
Drive type
Temperature range
Scald protection
Power
Water connection
KNX capable
Voltage
Gas pressure
Display features
Advantages
1
Best Product
Stiebel Eltron DCE 11/13
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Stiebel Eltron DCE 11/13
Bewertung
604 Reviews
Zum Anbieter
Amazon
Available at
amazon
£219.85
eBay
Check Price
Manufacturer
Stiebel Eltron
Material
Plastic
Dimensions
3,9 x 7,4 x 11,5 in
Colour
White
Weight
5,5 lb
Remote control
Drive type
Electric
Temperature range
20 to 60 °C
Scald protection
Power
13,5 kW
Water connection
3/8 Inches
KNX capable
Voltage
400 V
Gas pressure
10000 mbar
Display features
Advantages
  • Scald protection included
  • Questions can be answered in the manual
2
Bestseller
AEG DDLE Basis 18/21/24
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
AEG DDLE Basis 18/21/24
Bewertung
442 Reviews
Zum Anbieter
Amazon
Available at
amazon
£246.76
eBay
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Manufacturer
AEG
Material
Plastic
Dimensions
3,7 x 8,9 x 19,1 in
Colour
White
Weight
7,9 lb
Remote control
Drive type
Electric, Alternating current, Manually
Temperature range
30 to 60 °C
Scald protection
Power
24 kW
Water connection
1/2 Inches
KNX capable
Voltage
400 V
Gas pressure
10000 mbar
Display features
Advantages
  • Fast work thanks to direct tap
  • Manual offers an answer to everything
  • Is solar-compatible
3
Best Price
thermomate ELEX5.5
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
thermomate ELEX5.5
Bewertung
383 Reviews
Zum Anbieter
Amazon
Available at
amazon
£119.99
eBay
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Manufacturer
thermomate
Material
Plastic
Dimensions
3,7 x 6,5 x 7,5 in
Colour
White
Weight
3,7 lb
Remote control
Drive type
Electric
Temperature range
35 to 55 °C
Scald protection
Power
5,5 kW
Water connection
KNX capable
Voltage
230 V
Gas pressure
Display features
Advantages
  • Questions can be answered in the manual
  • Display available
  • With scald protection
4
Stiebel Eltron DNM 3
Vergleichsergebnis
Rating
Excellent
01 / 2025
Model
Stiebel Eltron DNM 3
Bewertung
1360 Reviews
Zum Anbieter
Amazon
Available at
amazon
£165.49
eBay
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Manufacturer
Stiebel Eltron
Material
Plastic
Dimensions
3,2 x 5,6 x 7,5 in
Colour
White
Weight
3,1 lb
Remote control
Drive type
Electric
Temperature range
Scald protection
Power
0 kW
Water connection
3/8 Inches
KNX capable
Voltage
230 V
Gas pressure
1000 mbar
Display features
Advantages
  • Questions can be answered in the manual
5
TTulpe Indoor B-6
Vergleichsergebnis
Rating
Very Good
05 / 2025
Model
TTulpe Indoor B-6
Bewertung
101 Reviews
Zum Anbieter
Amazon
Available at
amazon
£260.00
eBay
Check Price
Manomano.co.uk
£260.00
Manufacturer
TTulpe
Material
Plastic
Dimensions
9,7 x 10 x 21,7 in
Colour
White
Weight
22 lb
Remote control
Drive type
Gas
Temperature range
Scald protection
Power
11,6 kW
Water connection
KNX capable
Voltage
1,5 V
Gas pressure
0 mbar
Display features
Advantages
  • Manual offers an answer to everything