Clage
Flow-through water heater DBX 21 kW
Instant hot water, low pressure required
21kW power, high flow up to 10.7L/min
Compact, energy class A, IP25 safe
Delivery within 3 business days
Best price guarantee
Free shipping
What our customers think (1)
21 Jul 2026
Good instantaneous water heater that provides hot water quickly. Our installer connected it to the 3-phase supply and everything has worked reliably since. Compact unit with good capacity for normal use. Very pleased with the Clage so far.
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Free and no-obligation advice
Feel free to contact us via the customer service page. We are available Monday to Friday from 9:00 to 12:30 and from 13:00 to 17:00, and will be happy to assist you with personalised advice.
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Download our Quality Heating app for free
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Professional or installer? Discover the benefits
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- Company name
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Send your request by email to info@qualityheating.nl.
Product specifications
Description
This high-quality DBX flow-through heater or instantaneous heater has a low activation pressure, allowing hot water to be obtained fairly quickly. This Clage DBX flow-through heater 21 kW must be connected to a 3-phase supply and protected with a 25 A fuse.
Note; the outlet temperature of the water in all flow-through units depends on the inlet temperature. When using a flow-through heater you cannot use a rain (overhead) shower. Connected appliances cannot be returned. Before purchasing, ask your installer/electrician whether this appliance is suitable for your situation. We cannot assess this for you.
Features
|
|
DBX 18 |
DBX 21 |
DBX 24 |
DBX 27 |
|
Type |
Pressure-resistant |
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|
Water temperature selection range (°C) |
50°C standard. (Internally adjustable between 30–60 °C) |
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|
Hot water capacity at ∆t=28K1)2) [l/min] |
9.2 |
10.7 |
12.3 |
13.8 |
|
Flow rate at activation / max. flow rate [l/min] |
2.5 / 7.0 |
2.5 / 8.0 |
2.5 / 9.0 |
2.5 / 9.0 |
|
Nominal power [kW] |
18 |
21 |
24 |
27 |
|
Voltage [3~/PE 400 V AC] |
Fixed connection |
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Nominal current [A] |
26 |
30 |
35 |
39 |
|
Required cable cross-section [mm2] |
4.0 |
4.0 |
6.0 |
6.0 |
|
Weight with water filling [kg] |
3.7 kg |
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Nominal volume [liter] |
0.4 liter |
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Protection class |
IP25 |
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|
Dimensions (h x w x d) [cm] |
46.6 x 23.1 x 9.7 |
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| Energy label | A | |||
Pros and cons
What's in the box?
- Main product
- User manual
- Power cable
- Optional mounting materials
Frequently asked questions
Can I see this product in person?
Can I see this product in person?
Yes, you can view this product in our showroom. Contact us to schedule an appointment.
What is the warranty period?
What is the warranty period?
All our products come with a standard 2-year manufacturer's warranty. For some products, we offer an extended warranty. Please check the specifications here.
Can I return my product?
Can I return my product?
Yes, you have a 14-day withdrawal period. The product must be returned in its original condition and original packaging.
How can I check if a product is available?
How can I check if a product is available?
The availability status is shown on the product page. If a product is not available, please contact us to find out the expected delivery date.
Can I receive advice for my purchase?
Can I receive advice for my purchase?
Absolutely! Our team is at your disposal to help you. Contact us by email or visit us in our showroom for personalised advice.
