Domestic hot water module for hygienic drinking water

Comfortable domestic hot water technology for the domestic hot water preparation

The PAW Friwa modules heat potable water comfortably and hygienically operating on the principle of a flow-type water heater. With various nominal diameters, they are optimally adapted to your needs. In addition, the powerful plate heat exchanger heats the water only if necessary. Unlike conventional domestic hot water tanks, the water in our Friwas is not used for energy storage and is not stored as domestic hot water for hours or days. The energy necessary for heating the domestic water is provided by a buffer tank which can be heated via various systems.

This can be solar systems, solid fuel boilers or conventional oil or gas boilers. Also, domestic hot water modules and heat pumps can be efficiently combined with each other. The Friwa modules are also optimally suited for an application in combination with a solar thermal system. This means, the cooling of the heating water in the efficient plate heat exchangers improves the efficiency of the solar circuit. Thanks to the cold return, the medium temperature of the solar circuit can be reduced.

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Advantages of the PAW domestic hot water module "Friwa":

  • High energy utilisation due to high-efficiency pumps
  • Domestic hot water module available with or without circulation
  • Special control allows high comfort
  • Use in combination with heat pumps possible
  • Domestic hot water module as cascade: The types FriwaMidi, FriwaMaxi and FriwaMega are cascadable

Product range Friwa

The FriwaMicro is our small performance miracle:

  • thermally controlled domestic hot water module for a single-family house (up to 2 showers)

at a set hot water temperature of 45 °C:

  • max. flow rate: 20 l/min (according to SPF LK 1)
  • transmission performance: 49 kW (according to SPF LK 1)

You will find further design data here.

Domestic hot water module FriwaMini for a max. flow rate of 28 l/min (according to SPF LK 1)

  • corresponds to a single-family house (3 or more showers)
  • available with or without circulation
  • transmission performance: 65 kW (according to SPF LK 1)

You will find further design data here.

FriwaMidi domestic hot water module for a max. flow rate of 50 l/min (according to SPF LK 1)

  • depending on its dimensioning, it is suitable for multi-family houses up to 20 housing units
  • available with or without circulation
  • transmission performance: 121 kW (according to SPF LK 1)
  • cascadable

You will find further design data here.

FriwaMaxi domestic hot water module for a max. flow rate of 77 l/min (according to SPF LK 1)

  • depending on its dimensioning, it is suitable for multi-family houses with 15 to 30 housing units
  • available with or without circulation
  • transmission performance: 187 kW (according to SPF LK 1)
  • cascadable

You will find further design data here.

FriwaMega domestic hot water module for a max. flow rate of 123 l/min (according to SPF LK 1)

  • depending on its dimensioning, it is suitable for hotels, hospitals or up to 50 housing units
  • available with or without circulation
  • transmission performance: 300 kW (according to SPF LK 1)
  • cascadable

You will find further design data here.

The types FriwaMidi, FriwaMaxi and FriwaMega are cascadable. To cover larger withdrawal flow rates, such as in the hotel industry or in hospitals, the basic module without a circulation line can be extended to a double, triple or quadruple cascade by using a pipe set.

  • FriwaMidi Cascade: 100 l/min - 200 l/min
  • FriwaMaxi Cascade: 154 l/min - 308 l/min
  • FriwaMega Cascade: 246 l/min - 492 l/min

You will find further design data here.

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