The tubra®-e-Therm C is a hydraulic unit with electronic target temperature control for thermal storage of PV electricity.

The compact hydraulic unit can be connected modularly to heating coils of hot water tanks with drinking water and buffer tanks with heating water. Retrofitting to existing drinking water and buffer storage tanks is easily possible. The tubra®-e-Therm C solution for self-consumption optimization in interaction with external energy management systems.

By power modulation from external energy management systems it is possible to thermally use the entire photovoltaic surplus despite fluctuating photovoltaic power production and fluctuating household power demand.

Depending on the external energy management system, even small and fluctuating surplus power can be converted into usable heat at a constant temperature. Thus, the storage tank is loaded in layers from top to bottom and usable heat is already available after a short time and the conventional, fossil fuel reheating is suppressed.

The electrothermal station

• Can be used on buffer storage tanks and heating registers of drinking water storage tanks.
• Optimal for retrofitting to existing storage tanks.
• Automatic pump control by target temperature control
• Energy storage in hot water tanks with significantly higher storage capacities than in batteries.

Fast power modulation up to 3000 W with eTherm C3 and up to 9000 W with eTherm C9.

The All in One Storage for heating, hot water, PV-Heat, heat pump, biomass and
solar. The storage tank is equipped with internal piping and insulation
made of polyester fibre fleece, which ensure maximum energy
efficiency.

Quick installation thanks to completely coordinated system components - not only
do they save time, but they can also be installed in a space-saving manner.

With tuxhorn components to the system storage
• System safety combined with energy efficiency through
stratification device for heating circuit return
• Power to Heat stratified charging - buffer tank is 100%
thoroughly charged in layers
• Space saving istallation
• low assembly effort due to internal piping
• coordinated components match optimally together

tubra®-nemux S/M is a fresh water station especially designed for one and two-family houses. With the help of turba®-nemux S/M and the integrated stainless steel heater exchanger water gets heated up hygienically and in line with demand. During tapping the cold drinking water is pumped through the heat exchanger and heated up by hot water from the buffer tank which is pumped through the other side. The desired temperature of the drinking water is always achieved with this flow-fhrough pinciple.The leading pump is adjusted according to effective demand and regulated by an intelligent electronic control. In that way only effectively needed energy is taken from the buffer tank. Due to the special heat excchanger embossing, a high thermal length and thus low return temperatures are achieved. The well thought design and construction of the single components protects the heat exchanger against calcination, particularly the flow of hot water from bottom to top which guarantees a quick cooling down of parts exposed to calcination. Stop and flush valves assure a high level of usability and an easy maintenance. Special wall brackets are integrated for a quick and simple wall fastening. Alternatively tubra®-nemux can also be mounted directly on to the buffer tank. Completely pro-mounted the fresh water station tubra®-nemux has just to be connected wtih the buffer tank and the drinking water circuit.

Electronically controlled fresh water station with many opitions such as circulation programs, cascade function with up to 4 stattions and hygiene programs.

• Complete stainless steel piping
• Optimized insulation according to EnEV 2014
• Variants with full stainless steel PWT available
• Comfort function (warm boot)
• Function variable warm water temperature: At low buffer temperature the warm water temperature is reduced and thus the buffer stratification stay stable.
• Integrated return flow stratification function to support storage stratification.
• tubra-nemux S - 28 l/min
• tubra-nemux M - 41 l/min

The tubra®-e-Therm is a hydraulic unit with integrated control for thermal storage of photovoltaic power to optimise in-house consumption. The compact hydraulic unit can be connected as a module to hot water accumulators with drinking water and buffer accumulators with heating water. Retrofitting to existing drinking water and buffer accumulators is easy. The integrated power measuring device is installed at the grid feed-in point upstream of the power meter. This helps to ensure priority for domestic electricity system-side. The control manages the output of the electric heater to reflect the excess power generated by the photovoltaic system in order to avoid grid feed-in. Output modulation makes it possible to use the entire excess photovoltaic energy production thermally despite fluctuating energy production and fluctuating domestic electricity consumption.

The fast reaction time for output measurement and output modulation ensures that no grid current is used for heating purposes. Even low and fluctuating excess power can be converted to usable heat with a constant temperature. The accumulator is charged in layers top-down; usable heat is available after a short time, and conventional, fossil re-heating is suppressed. The tubra®-e-Therm can output useful charge temperatures even at low outputs thanks to dual modulation.

The electrothermal station

• Can be used on buffer tanks and heating registers of drinking water storage tanks.
• Perfect for retrofitting of existing accumulators.
• A compact hydraulic unit with integrated output measurement, power control and accumulator charge management, independent of the inverter and power meter system.
• Energy storage in hot water accumulators with far greater storage capacities than in batteries.
• Fast output modulation up to 3000 W in combination with speed control of the charge pump for a constant target termperature up to 80°C and thus immediately usable heat.

The thermally controlled flat station tubra®-FSU / FSM for
comfortable, decentralized and hygienic DHW heating and
efficient heating distribution

The thermal flat station for new buildings and renovations with
extensive standard equipment. Versions for Radiator systems,
underfloor heating and combinations. All versions with copper and
stainless steel brazed plate heat exchanger.

Performance classes
network temperature 60 °C, Warmwater temperature 45 °C
• FSU/M-S: 14 l/min (35 kW)
• FSU/M-M: 20 l/min (50 kW)
Dimensions
• Construction depth 110 mm suitable for drywall
• SM-housing narrow: 570 x 700 x 150 mm
• FM-housing narrow: 570 x 700 - 900 x 110 - 160 mm
• SM-housing wide: 700 x 1160 x 150 mm
• FM-housing wide: 700 x 1160 - 1350 x 110 - 160 mm

Thermally controlled flat station

Thermo Comfort System
• Thermal warm water control with 3-way control valve
• Standby temperature 50 °C according to VDI 2072
• warm water comfort level III according to VDI 6003
Delta Control System
• integrated difference pressure control about 30 kPa
• Presettable zone valve in the heating outlet