Guide
What is hydronic heating?
Hydronic heating uses water to carry energy from a heat source to indoor emitters. The emitter can be a radiator, fan coil, towel rail or another suitable system.
Read the FAQHydronic heating and cooling explained without the jargon.
The EVOHX knowledge centre is designed to answer the practical questions homeowners, designers and installers ask before choosing a hydronic system.
Guide
How does an air-to-water heat pump work?
The outdoor heat pump transfers energy between outdoor air and a water circuit. That water then becomes the distribution medium inside the building.
See the systemGuide
Can hydronic systems cool?
Yes, with suitable room-side equipment and controls. Fan coils are a common option because they can handle both heating and cooling.
Cooling systemsGuide
What is R290?
R290 is propane refrigerant used in some modern heat-pump equipment. Product selection and installation must follow the applicable manufacturer requirements and regulations.
EVOHX productsGuide
Radiators or fan coils?
It depends on the room and whether cooling is required. Radiators are heating emitters; fan coils can provide heating and cooling.
Compare productsGuide
Why does cooling need condensate drainage?
When a hydronic coil operates below the room dew point, condensation can form. Cooling installations therefore need suitable drainage, insulation and controls.
Design considerationsFAQ
Common questions.
These answers are general guidance. Final system design should be based on the actual project and equipment documentation.
Is hydronic heating the same as underfloor heating?
No. Underfloor heating is one type of hydronic emitter. Hydronic systems can also use radiators, towel rails, fan coils and other water-based terminals.
Can EVOHX heat and cool?
Yes, when the system includes suitable cooling terminals such as fan coils. Standard two-pipe central systems generally operate in heating or cooling mode; simultaneous operation needs a different hydraulic and plant arrangement.
Can EVOHX supply domestic hot water?
The EVOHX technical system concept includes domestic hot water as a separate circuit using storage and a heat exchanger. The final arrangement depends on project demand and design.
Can an EVOHX heat pump run underfloor heating?
Yes. The heat pump can provide low-temperature water for underfloor heating. EVOHX is not positioning itself as an underfloor construction specialist, so the floor system should be designed and installed by an experienced specialist.
Does every apartment need its own heat pump?
No. EVOHX documentation describes both standalone apartment systems and central plant systems. The appropriate arrangement depends on the development and its hydraulic, metering, space and operating requirements.
Can heating and cooling happen at the same time?
Not in the standard central two-pipe configuration. A four-pipe arrangement with separate circuits and additional heat-pump plant can be used where simultaneous heating and cooling is required.