Self-limiting Cables

Self-limiting heating cables

The self-limiting heating cables for indoors are used for maintenance of the hot water supply and other fluids that need to maintain a certain temperature. The self-limiting capability of the cable ensures that the output increases or decreases according to the surrounding temperature. It ensures hot water in all taps, providing savings compared to a circulatory hot water system.

Heating cable reduces water waste as hot water is immediately supplied.

Protection against Legionella—the system maintains the water supply at the required temperature level and provides appropriate disinfection to suppress the Legionella bacteria.

Lower initial investment of DHW (Domestic Hot Water) system without circulation—appx. 50% less pipes, insulation, valves, and pumps to be installed as no return pipes and insulation are required.

Space saving—no need for return pipe gives more room in service ducts.

DEVIhotwatt™ (B) / EChotwatt 45/55/70

The DEVIhotwatt™ (B) / EChotwatt 45/55/70 is a self-limiting heating cable that is used for temperature maintenance of the hot water supply and other fluids that need to maintain a certain temperature. The self-limiting capability of the cable ensures that the output increases or decreases according to ambient temperature. It ensures hot water in all taps and savings when circulation of the whole pipe system is unnecessary.

Features and benefits using self-limiting cables

Provide appropriate disinfection to suppress the Legionella bacteria

Reduce water waste as you can get hot water immediately

50% less pipes, insulation, valves, and pumps to be installed since no return pipes are required

Heating cables provide power where needed adapting output according to the ambient temperature

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type
Data sheet	Danfoss EChotwatt 45, 55, 70	English	Multiple	17 Jul, 2023	836.9 KB	.pdf
Catalog	Danfoss Product catalogue	English	Multiple		20.8 MB	.pdf
Application guide	DEVI Domestic Hot Water Application guide	Romanian, Moldavian, Moldovan	Romania	26 May, 2022	1.1 MB	.pdf
Application guide	DEVI Domestic Hot Water Application guide	English	Multiple	03 Mar, 2023	7.2 MB	.pdf
Application guide	DEVI Domestic Hot Water Application guide_v2	Danish	Denmark	18 Jun, 2024	1.3 MB	.pdf
Catalog	DEVI Product Catalogue	Finnish	Finland	24 Jun, 2025	13.8 MB	.pdf
Catalog	DEVI Product Catalogue	Italian	Italy	13 Jun, 2025	29.3 MB	.pdf
Catalog	DEVI Product Catalogue	English	Multiple	09 Apr, 2025	29.5 MB	.pdf
Catalog	DEVI Product Catalogue	Norwegian Bokmål	Norway	28 Jun, 2022	13.6 MB	.pdf
Catalog	DEVI Product Catalogue	Ukrainian	Ukraine	16 Jan, 2025	13.0 MB	.pdf
Catalog	DEVI Product Catalogue	German	Austria	20 Jan, 2025	6.0 MB	.pdf
Application guide	Domestic Hot Water Application manual	Chinese (CN)	China	03 Apr, 2025	3.8 MB	.pdf
Application guide	Domestic Hot Water Application manual	English	Multiple	23 Dec, 2016	3.3 MB	.pdf
Data sheet	EChotwatt 45, 55, 70	German	Austria	09 Jul, 2019	13.2 MB	.pdf

Tools and apps

EH Plugin for AutoCAD

The Plugin supports your engineering and design journey by making your work faster due to simple functionalities in calculating all lengths, dimensions and product data of cables and mats. It covers all applications within Electric Heating projects: Electric floor heating, Ice & Snow melting systems, Pipe tracing, Cold stores, Sport fields, Vineyards etc.
By utilizing Plugin, you will reduce design time for the project, provide all necessary information for installers in HTML/PDF format: BoM, resistance value check list, warranty list format. It means all project information can be consolidated in one file.

Plugin can be used with AutoCAD 2017-2023.

Warranty

At Danfoss, it is important for us to deliver high-quality products with long-lasting effects. Should you, against all expectations, experience a problem with your product, Danfoss offers a warranty for electric heating products valid from the date of purchase that was no later than 2 years from production date.

Depending on the product, the product guarantee is valid for two years, five years, or twenty years.

Product warranty covers costs for:

product replacement with a new comparable product or repair of the product
transportation costs

Warranty terms

Case stories

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Pipe tracing in 600 Suzhou apartments China

Suzhou city was founded in 500 BC. is nowadays a major city located in the south-eastern Jiangsu Province of East China, about 100 km (62 mi) northwest of Shanghai. It is a big economic center and local point of trade and commerce, and the second largest city in the province, after its capital Nanjing.

Related applications

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Domestic hot water

Danfoss domestic hot water systems provide everything for the production, storage, hydronic balancing, temperature control and temperature logging for drinking water in non-residential and multi-family residential buildings. The systems established are high performing, provide comfort and hygiene and ensure maximum possible protection against Legionella.