Frequently Asked Questions Is mvhr good?

 Yes, an MVHR system can be retrofitted into an existing building, but it may require some modifications to the building's ventilation system. The cost and feasibility of retrofitting an MVHR system depend on the specific circumstances of the building. 

 An MVHR system requires regular maintenance to ensure it operates efficiently and effectively. The filters should be cleaned or replaced regularly, and the ductwork should be checked for blockages or leaks. 

 The benefits of an MVHR system include improved indoor air quality, reduced energy consumption, and lower heating costs. The system can filter out pollutants and allergens from the incoming air, providing a constant supply of fresh filtered air. It can also recover heat from the exhaust air, reducing the amount of heat that needs to be supplied by the heating system. 

 MVHR systems are becoming increasingly popular in energy-efficient buildings as they provide good indoor air quality, reduce energy consumption, and save on heating costs. They are particularly useful in airtight buildings with limited natural ventilation, where they can provide a constant supply of fresh filtered air while reducing heating costs. 

An MVHR (Mechanical Ventilation with Heat Recovery) installation is a system designed to provide controlled ventilation while recovering heat from the exhaust air. The system works by extracting stale air from inside the building, passing it through a heat exchanger to recover heat, and then supplying fresh filtered air back into the building. The main components of an MVHR installation include:

1. Extract fans: These fans are located in wet rooms such as bathrooms and kitchens and are responsible for extracting stale air from the building.

2. Supply fans: These fans are responsible for supplying fresh air back into the building.

3. Heat exchanger: This is the heart of the MVHR system. It recovers heat from the exhaust air and uses it to preheat the fresh air supply, reducing the amount of heat that needs to be supplied by the heating system.

4. Filters: These are used to filter out pollutants and allergens from the incoming air, improving indoor air quality.

5. Ductwork: This is the network of pipes that transport the stale air from the extract fans to the heat exchanger and then transport the fresh air from the heat exchanger to the supply fans.

6. Controls: These are used to regulate the operation of the MVHR system, such as the speed of the fans, the temperature of the incoming air, and the humidity levels.

The main purpose of an MVHR installation is to provide controlled ventilation while recovering heat from the exhaust air, which can lead to energy savings and improved indoor air quality. The system is particularly useful in airtight buildings with limited natural ventilation, where it can provide a constant supply of fresh filtered air while reducing heating costs.

 Go to articles for more informations.

Heat recovery is a proces where one media giving its energy to another.
Simply word. In this example. Old warm but contaminated air from insaid of home will give that energy to fresh colder air from outside .
In this proces both media not mixing together so no smels or any polution coming back to home.

Yes and no. It depends of building.

We must remember that first role of MVHRU is ventilation. Because it is heat recovery unit we can expect and even count kwh of recovered energy.

For exampe. Recovery of 10 C will give back about 8.3 hwh per day. With is over 3000 kwh per year.

Take a look to our knowledge and articles site.

Our units typically need 1kwh per day 

It means 365 kwh a year.

 The cost of an MVHR system varies depending on the size and design of the building, the level of insulation, and the efficiency of the heating system. The initial installation costs can be high, but the long-term benefits of reduced energy consumption and improved indoor air quality can make the investment worthwhile. 

It is hard to estimate in generall because each home is different.
Generally we do our instalations for customers for 2500-3500GBP 

This is a total cost of parts and instalation

All mechanical moving parts make a noise.
The whole installation does not make additional unpleasant noises. You can hear only wind next to vent.

Connection diagrams are available in download section.