Exergy is the usable proportion of energy that can perform work. In heating technology, exergy enables space heating and domestic hot water heating through higher temperature levels.

What does exergy optimization mean?

Exergy optimization is the key to system efficiency. The usable energy component is specifically controlled to achieve maximum heating output with minimal energy consumption.

What happens when the temperature ranges in the stratified storage tank are mixed?

When mixed, a uniform intermediate temperature is created. The exergy at the higher temperature level is irreversibly lost—usable exergy becomes unusable anergy.

How does varmeco fresh water technology protect against Legionella?

The thermochemical fresh water system heats drinking water exclusively on demand using the continuous flow principle. Since no hot water is permanently stored, legionella have no opportunity to multiply.

How does wastewater utilization work with the eXergiemaschine?

The eXergiemaschine recycles unused heat and raises its temperature level to a usable level. It improves the efficiency of heat sources and can be ideally combined with solar thermal energy and heat pumps.

Hygienic water heating in detached houses or apartment buildings

System-efficient planning with the VARIO fresh-nova - for new builds and renovations

Fresh water station "made in Germany"

Planning security for new construction and renovation

The requirements for hot water heating in single and multi-family homes are increasing: Hygiene, efficiency, low system temperatures and economical operation must be met at the same time.

The VARIO fresh-nova enables central heat generation with hygienic DHW heating using the instantaneous water heating principle - without a DHW cylinder.

Why flow through instead of stockpiling?

In conventional systems, domestic hot water is stored - with corresponding hygienic and energy-related challenges.

The VARIO fresh-nova works differently:

Heating only with tapping
No storage of domestic hot water
Reduced risk of legionella
Strict separation of heating and drinking water side

The result: high operational reliability with clearly calculable system temperatures.

„The fresh water modules from varmeco have been running in our ice stadium and and indoor swimming pool have been running absolutely trouble-free and reliably for years. Thanks to the eXergiemaschine, we have been able to keep the circulation temperature stable and at the same time reduce the load on the gas boiler, which brings us considerable energy savings. The technology of the fresh water modules and the eXm impresses us with its efficiency and high level of water hygiene - a solution that we are happy to recommend.“

Powerful for single-family homes or apartment buildings

The VARIO fresh-nova appliance series comprises electronically controlled fresh water heaters as individual appliances in six output sizes in the nominal output range from 20 to 80 l/min.
Suitable for parallel extraction situations
Cascadable for larger objects
Compatible with central buffer storage solutions

This allows the water heating system to be precisely designed to meet actual demand - without oversizing

Fresh water technology explained in compact form

Optimized for heat pump systems

Modern heat pumps work efficiently at low flow temperatures.
The VARIO fresh-nova integrates ideally into:

Low-temperature heating concepts
eXergy storage solutions
Hybrid systems
Neighborhood and district heating systems

Thanks to the clear hydraulic separation, the system architecture remains flexible - both monovalent and bivalent.

Technical advantages for planners

✔ Hygienic DHW heating in flow-through mode
✔ No domestic hot water storage tank required
✔ Reduced standby losses
✔ Clear hydraulic integration
✔ Compact design
✔ Scalable system integration

Product description VARIO fresh-nova

Economic efficiency in operation

Lower storage losses
Reduced maintenance compared to large domestic hot water cylinders
Efficient operation of heat pump systems
Future-proof solution for increasing hygiene requirements

Typical areas of application

Apartment buildings
Residential complexes
Refurbishment projects
Housing associations
Neighborhood solutions

Get planning support

Are you planning a detached house or apartment building and looking for a hygienically safe, efficient solution for heating water?

Our application technology supports you with:

System design
Hydraulic diagram
Storage integration
Profitability analysis

Get a quote now!

First name

Name

Zip code

e-mail

Callback number

Message

Data protection

I have the Privacy policy I have taken note of this. I agree that my details and data will be collected and stored electronically to answer my request. Note: You can revoke your consent at any time for the future by sending an e-mail to info@varmeco.de.