Instantaneous water heaters

  • Overview
  • Product range
  • Documents
  • Case stories

Instantaneous water heaters provide hot water instantaneously and only as it is needed. When you turn on a hot water tap in your home, cold water travels through a pipe into a heat exchanger in the unit.

The cold water is heated in the heat exchanger via district heating water or another waterborne heat source. As a result, the water heaters deliver a constant supply of instant hot water.

The biggest advantage of a water heater with heat exchanger is: It never goes empty! Danfoss instantaneous water heaters can supply from one up to four households with domestic hot water and are very suitable for one-family houses.

Installation and maintenance

Proper installation and maintenance of your water heater can optimize its energy efficiency. Proper installation depends on many factors. Therefore, it is best to have a qualified plumbing and heating contractor install your water heater for you.

It is necessary to check and maintain the water heater on a regular basis in order to keep it in good operating condition. The frequency of the maintenance and service inspections should be according to system manufacturer specifications and local legislation. Most instantaneous and tankless hot water heaters have a life expectancy of more than 20 years. They also have easily replaceable parts that extend their life by many more years.

Periodic water heater maintenance can significantly extend your water heater's life and minimize loss of efficiency. Read the instructions that come with the water heater for our specific maintenance recommendations.

Features and benefits

Easy to install, requires little space and is simple to operate. 

Low operational temperatures.

Provides very clean water since there is no stagnant water in heat exchangers where slime and bacteria can grow.

Product range

Documents

Documents
Type Name Language Valid for Updated Download File type
Brochure Specifying the right district heating substation makes commercial sense Bulgarian Bulgaria 31 Jul, 2015 11.3 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense Slovak Slovakia 21 Jul, 2015 2.4 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense German Multiple 16 Mar, 2020 3.1 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense Croatian Croatia 06 Aug, 2015 2.5 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense Ukrainian Ukraine 18 Sep, 2015 2.2 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense Romanian, Moldavian, Moldovan Romania 29 Aug, 2015 2.3 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense Slovenian Slovenia 21 Jul, 2015 5.2 MB .pdf
Brochure Specifying the right district heating substation makes commercial sense English Multiple 05 Mar, 2015 2.4 MB .pdf

Case stories

  • if (isSmallPicture) { Eurasburg; } else if (isBigColumns) { Eurasburg } else { Eurasburg }
    Successful transition from oil boilers to a local heating network in Eurasburg

    In the Wittelsbacher Land near Augsburg the local network in Eurasburg supplies heat to 80 buildings using a wood chip heating system. Danfoss’ substations ensure efficient heating in all building types, and its modern SCADA solution enables remote system monitoring and management. 

  • if (isSmallPicture) { Rothes CoRDe plant; } else if (isBigColumns) { Rothes CoRDe plant } else { Rothes CoRDe plant }
    DrivePro® Lifecycle Services secure maximum uptime for Rothes CoRDe

    SCOTLAND: The Rothes CoRDe plant, a biomass-fired combined heat and power (CHP) plant, ensured maximum uptime thanks to several DrivePro® Lifecycle Services.

  • if (isSmallPicture) { Pipe tracing in 600 Suzhou apartments China; } else if (isBigColumns) { Pipe tracing in 600 Suzhou apartments China } else { Pipe tracing in 600 Suzhou apartments China }
    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.

  • if (isSmallPicture) { In Helsinki a total of 667 addresses in a mix of large and small buildings and apartments have had the Leanheat software installed.; } else if (isBigColumns) { In Helsinki a total of 667 addresses in a mix of large and small buildings and apartments have had the Leanheat software installed. } else { In Helsinki a total of 667 addresses in a mix of large and small buildings and apartments have had the Leanheat software installed. }
    Leanheat makes buildings smart

    In Europe, 30 percent of all energy consumption goes to heat or cool buildings. Danfoss has the solution to lower energy usage and improve indoor climate by adding a digital element: Leanheat software.

  • if (isSmallPicture) { Consumption with SONDEX evaporators; } else if (isBigColumns) { Consumption with SONDEX evaporators } else { Consumption with SONDEX evaporators }
    SONDEX® raises the standard in Brazil

    Since its launch in 2016, the SONDEX® branch of Danfoss Brasil has worked hard to become the leading manufacturer of plate heat exchangers for customers across Latin America. In December 2017, the company took giant strides towards fulfilling its high ambitions when it delivered four evaporators to Bioenergética Aroeira for use in the production of sugarcane ethanol – the biggest delivery of its kind ever manufactured in Latin America.

  • if (isSmallPicture) { Solar heating plant reduces CO2 emissions by 15,700 tonnes annually; } else if (isBigColumns) { Solar heating plant reduces CO2 emissions by 15,700 tonnes annually } else { Solar heating plant reduces CO2 emissions by 15,700 tonnes annually }
    Solar heating plant reduces CO2 emissions by 15,700 tonnes annually

    The world’s largest solar heating plant in Silkeborg, Denmark harnesses energy to heat the homes and workplaces of 40,000 citizens. It supplies 18-20% of the annual heat consumption in the city of Silkeborg, Denmark, which has an ambitious target of CO2 neutrality in heat production by the year 2030.

Unlock the grid to its full potential

We can help utilities to optimize their supply of district heating to cities with a positive impact on decarbonization and reduced energy consumption. It's time to unlock the grid's full potential for ultimate cost-effectiveness, energy-efficiency and a resilient path to a greener future.