TacoTherm Fresh Femto

Connection-ready transfer station for heating drinking water


The TacoTherm Fresh Femto is a highly efficient, thermally insulated and sound-proofed transfer station for supplying hot drinking water in a domestic setting.
The station has an integrated proportional flow controller with connecting piping and a plate heat exchanger.



  • Comes equipped with all the necessary valves and components
  • Space-saving because a drinking water storage tank is not required


  • Protection against Legionella by avoiding water stagnation


  • System is easy to install in refurbishments
  • Station is completely pre-assembled and connection-ready


  • Reduced energy costs through regulation of the hot water temperature without auxiliary electric energy


  • Drinking water is heated to the required dispensing temperature in the TacoTherm Fresh Femto via the plate heat exchanger in accordance with the cyclical flow principle. The energy required to prepare the hot water is taken from the heating distribution network. The integrated pressure-controlled proportional flow controller regulates heating of the drinking water up to a maximum dispensing rate of 18 l/min.
  • A constant hot water temperature can be ensured by means of down­stream NovaMix Value or Standard (optional) thermal mixing valves.

Technical Data


  • Weight: 11 kg
  • Overall dimensions: W 340 mm × H 540 mm × D 215 mm
  • Dispensing range: 2.5 – 18 l/min. A pressure differential of 330 mbar must be available via the proportional flow controller on the primary side.
  • Inner thread Rp (cylindrical) in accordance with ISO 7-1

Primary side

  • Operating temperature TO max: 95 °C
  • Operating pressure PO max: 3 bar
  • Ball valves: DN 20, inner thread ¾"
  • DN18 pipes
  • KVS primary: 2,22

Secondary side

  • Operating temperature TO max: 95 °C
  • Operating pressure PO max: 10 bar
  • DN20 ball valves, inner thread ¾"
  • DN18 pipes
  • Opening flow: 2,3 l/min
  • KVS secondary: 1,56


  • Valve housing for controller: Brass
  • Pipes : 1.4404
  • Heat exchanger: 1.4401 approved for drinking water
  • Heat exchanger solder: Copper 99.9 %
  • Valves and screw connectors: Brass or plastic approved for drinking water
  • Seals: AFM 34, flat sealing
  • Carrier/hood: EPP
  • Mounting material: Steel or plastic

Flow Media

  • Heating water (VDI 2035; SIA Directive 384/1; ONORM H 5195-1)
  • Cold water according to DIN 1988200:2012-05

Building categories

  • Apartment blocks
  • Single family dwellings
  • Multiple dwelling units
  • Office and commercial buildings

Type Overview

TacoTherm Fresh Femto (TacoTherm Fresh 15)

Fresh hot water station
Order no. Rp " Tap flow volume (l/min)
272.0013.000 ¾ 2,5 – 18 l/min