As energy efficiency standards continue to evolve, modern heat recovery ventilation systems have become a standard feature in both new-build properties and renovation projects. Today, however, homeowners expect more than lower energy consumption. They also look for solutions that improve everyday comfort and indoor air quality. This is why enthalpy heat recovery ventilation is becoming increasingly popular.
Unlike convential heat recovery systems, an enthalpy heat exchanger recovers not only thermal energy but also moisture from the exhaust air. HEIKO HCP Heat Recovery Units use a dedicated membrane that transfers both heat and water vapour between the air streams without mixing them. As a result, indoor air remains more comfortable during winter, while excess humidity from outside is reduced in summer. This also supports more efficient operation of air conditioning systems throughout the year.
So, is it worth investing in an enthalpy heat exchanger? In most modern homes, the answer is yes.
What Is The Difference Between a Standard Heat Exchanger and an Enthalpy Heat Exchanger?
A conventional heat recovery unit transfers only thermal energy from the exhaust air to the incoming fresh air. During winter, this helps preheat the supply air, while in summer it reduces the temperature of incoming outdoor air. Consequently, less energy is required to maintain a comfortbale indoor climate.
An enthalpy heat exchanger goes one step further.
Instead of recovering heat alone, it also transfers moisture through a specially designed membrance. Importantly, the supply and exhaust air streams remain completely separated throughout the process.
As a result, a significant amount of humidity stays inside the building instead of being permanently exhausted outdoors.
This is the key advantage of enthalpy heat recovery over conventional ventilation systems.
HEIKO HCP units are equipped with an advanced enthalpy heat exchanger featuring an antibacterial cellulose core, combining efficient energy recovery with improved indoor comfort throughout every season.
Dry Indoor Air In Winter – How Does The HEIKO HCP Solve This Problem?
Low indoor humidity is one of the most common issues in modern airtight buildings during the heating season.
Dry air may lead to dry skin, irritated eyes and throat, reduced sleeping comfort and an increased risk of respiratory irritation.
Traditional ventilation systems remove a considerable amount of moisture together with the exhaust air. Consequently, indoor humidity often drops below the level considered comfortable.
An enthalpy heat exchanger work differently.
It recovers part of the moisture contained in the exhaust air and transfers it to the incoming fresh air.
As a result, indoor humidity can be maintained within the recommended 40-60% comfort range, creating a healthier indoor environment throughout winter.
For even greater comfort HEIKO HCP units can be equipped with an optional humidity and CO₂ sensor. The system continuously monitors indoor air conditions and automatically adjusts ventilation performance according to the building’s current requirements.
Summer Comfort – How Does Enthalpy Heat Recovery Work With Air Conditioning?
The advantages of an enthalpy heat exchanger extend well beyond the heating season.
During summer, warm outdoor air also carries a significant amount of moisture. High humidity is often responsible for the feeling of stuffiness indoors, even when the temperature is relatively comfortable.
With conventional ventilation systems, this humid outdoor air enters the building directly. Consequently, the air conditioner must remove both heat and excess moisture, increasing it workload.
An enthalpy heat exchanger helps reduce this effect.
By limiting the amount of moisture entering the building, it reduces the dehumidification demand placed on the air conditioning system.
As a result, homeowners benefit from:
- improved thermal comfort,
- more stable indoor conditions,
- more efficient air conditioning performance,
- reduced energy consumption.
These benefits are particularly noticeable in homes equipped with modern HEIKO wall-mounted air conditioners or HEIKO Multi Split systems, where balanced humidity contributes to an even more comfortable indoor environment.
HEIKO HCP – A Modern Heat Recovery Unit for Energy-Efficient Buildings
HEIKO HCP Heat Recovery Units have been developed for modern residential and commercial buildings where energy efficiency and indoor comfort are equally important.
The range includes units with airflow capacities from 250 to 2200 m³/h, making it easy to select the right model for both single-family homes and larger commercial applications.
The units also feature temperature recovery efficiency of up to 90%, Energy Class A, and energy-efficient DC fans, ensuring reliable and economical operation throughout the year.
Their compact design simplifies installation where space is limited, while the integrated EPS casting provides excellent airtightness and minimises energy losses.
To further enhance everyday comfort, HEIKO HCP units can also be equipped with optional accesories, including:
- an H10 filter for enhanced air filtration,
- a Wi-Fi module for remote control,
- a humidity and CO₂ sensor,
- an electric pre-heater that supports reliable operation at low outdoor temperatures.
In addition, integration with the SmartLife platform allows users to monitor system performance and manage ventilation directly from a mobile application.
Is an Enthalpy Heat Recobery Unit Worth the Investment?
For most modern homes, the answer is definitely yes.
An enthalpy heat recovery system not only recovers valuable thermal energy but also helps maintain comfortable indoor humidity throughout the year.
During winter, this creates a healthier indoor environment. During summer, it reduces the humidity entering the building and improves the efficiency of the air conditioning system.
As a result, homeowners enjoy greater comfort while reducing the energy required to maintain stable indoor conditions.