Frequently Asked Questions

If your question is not listed here, please contact us.

Heat Recovery Installation

How does a HRV Unit work?

We are happy to explain how a HRV (Heat Recovery Ventilation) unit works through the video below:


A HRV (Heat Recovery Ventilation) installation is a central ventilation system that ensures a healthy indoor climate. Moreover, this installation allows you to significantly save on your energy costs. The HRV system always ensures a healthy airflow throughout the house. If you would like more information about a healthy indoor climate and saving on your energy costs, please do not hesitate to contact us.

When should I replace my HRV unit?

WTW-units have an average lifespan of about 15 years. New systems provide higher efficiency and cost savings. Are there unusual noises/malfunctions with the HRV unit? Contact us immediately to discuss the best course of action.

Which HRV unit is suitable for my living situation?

This entirely depends on a number of factors. Ask our experts for advice.

What is the cost of replacing an HRV unit?

The prices for replacing an HRV unit vary depending on the brand, model, type, living situation, and your preferences. Based on the information you provide, we will offer you suitable advice.

Installation & Mounting

How long does an average installation of an HRV unit take?

Installation of an HRV unit typically takes between 2.5 and 3.5 hours.

Are the ducts also cleaned?

If you would like to have the ventilation ducts cleaned at the same time, please let us know. We can perform these tasks concurrently with the installation.

Can you also replace more than just the HRV unit?

In addition to installing HRV units, we also perform various other tasks in collaboration with our parent company VSN (Ventilation Service Netherlands). We also replace mechanical ventilation units and roof fans. If you’re wondering whether we can assist you, please ask our experts for advice.

What should we consider during the installation?

It is important for the installers to have sufficient working space around the HRV unit. We kindly ask you to clear the area as much as possible, so that the technicians can dismantle the old unit and install the new one.

Are there additional costs?

No surprises with us. We agree on a fixed price with you for the installation of the HRV unit. If you want to add accessories to your system in addition to the installation, these costs will be discussed with you. This can include an additional wireless control or new valves.

General Questions

What is the difference between a Perilex plug and a Euro plug?

You can find these and other tips regarding the purchase of a unit or questions about a unit at:

What is the best way to maintain my HRV (Heat Recovery Ventilation) unit?

We recommend regularly cleaning the filters, replacing them, and cleaning the valves. Be careful when cleaning the valves to ensure they do not change positions, as this can affect the settings of your balanced ventilation system. Additionally, we advise cleaning the ducts as well. We recommend doing this every 3 to 4 years.

How long is the waiting time for a replacement of my HRV (Heat Recovery Ventilation) unit?

After agreeing to the replacement of your HRV (Heat Recovery Ventilation) unit, our scheduling team will contact you as soon as possible to make an appointment.

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