Comparison numbers
| 22 | Products researched | |
| 9 | Research hours | |
| 320 | Readers | |
| 16,657 | Customer ratings |
Best Small Flow Heaters
Mini Water Heater Comparison 2026
Sort & Filter
Best Product
Stiebel Eltron DNM 3
Amazon
Bestseller
EcoSmart ECO MINI 2.5
Amazon
AEG MTD 350
Amazon
Best Price
Haofy mini water heater
Amazon
Ariston 3626292
Amazon
Stiebel Eltron DEM 3
Amazon
Available at
Manufacturer
General features
Dimensions
Colour
Weight
Product properties
Drive type
Energy efficiency class
Power
Water connection
KNX capable
Voltage
Display
Advantages
Disadvantages
Shipping (Amazon)
Best Product
1
Stiebel Eltron DNM 3
Customer rating
1,419 reviewsCheck Price
Available at
see vendordays
see vendordays
Manufacturer
Stiebel Eltron
General features
Dimensions
3,2 x 5,6 x 7,5 in
Colour
White
Weight
3,1 lb
Product properties
Drive type
Electric
Energy efficiency class
A
Power
0 kW
Water connection
3/8 Inches
KNX capable
Voltage
230 V
Display
Advantages
- Manual offers an answer to everything
Disadvantages
- Not KNX-compatible
Shipping (Amazon)
see vendorCheck Price
Bestseller
2
EcoSmart ECO MINI 2.5
Customer rating
429 reviewsCheck Price
Available at
see vendordays
see vendordays
Manufacturer
EcoSmart
General features
Dimensions
10,9 x 10,9 x 17 in
Colour
White
Weight
15,9 lb
Product properties
Drive type
Electric
Energy efficiency class
Power
Water connection
KNX capable
Voltage
120 V
Display
Advantages
Disadvantages
Shipping (Amazon)
see vendorCheck Price
3
AEG MTD 350
Customer rating
206 reviewsCheck Price
Available at
see vendordays
see vendordays
Manufacturer
AEG
General features
Dimensions
3,2 x 5,6 x 7,5 in
Colour
White
Weight
3,1 lb
Product properties
Drive type
Electricity
Energy efficiency class
A
Power
3,5 kW
Water connection
3/8 Inches
KNX capable
Voltage
230 V
Display
Advantages
- Questions can be answered in the manual
Disadvantages
- Not KNX-compatible
Shipping (Amazon)
see vendorCheck Price
Best Price
4
Haofy mini water heater
Customer rating
102 reviewsCheck Price
Available at
see vendordays
see vendordays
Manufacturer
Haofy
General features
Dimensions
Colour
White
Weight
2,6 lb
Product properties
Drive type
Electric
Energy efficiency class
Power
3 kW
Water connection
KNX capable
Voltage
Display
Advantages
- With integrated display
Disadvantages
Shipping (Amazon)
see vendorCheck Price
5
Ariston 3626292
Customer rating
35 reviewsCheck Price
Available at
see vendordays
see vendordays00£
6 daysdays2.992.99£
Manufacturer
Ariston
General features
Dimensions
9,1 x 12,4 x 13 in
Colour
White
Weight
11,2 lb
Product properties
Drive type
Electricity
Energy efficiency class
Power
1,5 kW
Water connection
KNX capable
Voltage
Display
Advantages
Disadvantages
Shipping (Amazon)
6 daysCheck Price
6
Stiebel Eltron DEM 3
Customer rating
7 reviewsCheck Price
Available at
see vendordays
see vendordays
Manufacturer
Stiebel Eltron
General features
Dimensions
3,2 x 5,6 x 7,5 in
Colour
White
Weight
3,7 lb
Product properties
Drive type
Electricity
Energy efficiency class
A
Power
3,5 kW
Water connection
3/8 Inches
KNX capable
Voltage
230 V
Display
Advantages
- Solar-compatible model
- Scald protection included
- Questions can be answered in the manual
Disadvantages
- Unsuitable for KNX
Shipping (Amazon)
see vendorCheck Price
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