Single Room Heat Recovery (SRHR) is a ventilation system that utilises the heat from stale air being extracted from a room to pre-warm the incoming fresh air. This process not only enhances indoor air quality by ensuring a continuous supply of fresh air but also significantly reduces energy consumption by minimising heat loss.
In a typical SRHR system, stale air is drawn out of the room using a fan. As this air is expelled, it passes through a heat exchanger where it transfers its heat to the incoming fresh air. This incoming air, now pre-warmed, enters the living space, thereby reducing the energy required to heat it to a comfortable temperature.
In a UK home undergoing refurbishment, an SRHR unit can be installed in a bathroom. As the unit extracts humid air from the bathroom, it uses the heat from this air to warm the fresh air being drawn in from outside. This is particularly beneficial in winter months, as it helps maintain a comfortable indoor temperature while ensuring that moisture and pollutants are effectively removed.
Benefits:
- Energy Efficiency: By recovering heat from the outgoing air, SRHR systems reduce the need for additional heating, leading to lower energy bills.
- Improved Air Quality: Continuous ventilation helps to prevent the build-up of indoor air pollutants, enhancing overall indoor air quality.
- Ideal for Refurbishments: SRHR systems are particularly suited for retrofitting in existing buildings, where traditional ventilation methods may not be feasible or effective.
In the UK, where energy efficiency regulations are stringent, the adoption of SRHR systems aligns with the goals of reducing carbon footprints and improving energy ratings of homes. The integration of such systems in refurbishment projects can help homeowners meet compliance with the Building Regulations, particularly in relation to energy conservation and indoor air quality standards.