Heat Recovery & Ventilation

Whole House Heat Recovery. SAP Appendix Q listed and Energy Saving Fan Motors

Whole House Heat Recovery and how it works.

Stale, moist air is extracted from 'wet' rooms through grilles/cooker canopy (if fitted), passed across the aluminium plate heat exchanger to remove the heat and then the residue is exhausted to the atmosphere.

Fresh, filtered supply air is drawn across the heat exchanger to be warmed by the retained heat. This warmed fresh air is then distributed through ceiling mounted grilles to 'dry' rooms, the streams being kept separate to avoid any cross contamination. This results in fresh, dry warmed air circulating the rooms and providing a pleasant, clean, healthy living environment.

Our Heat Recovery range starts with the sophisticated - LE Range

THE NEW LE Range of Heat Recovery units incorporate modern design with energy-efficient EC motors and improved control options. Both the LE155 and LE250 can be fitted with optional slimline cooker canopy and are available in white or steel effect finish.

Controlled Ventilation

Accurate management of supply and extract rates is essential to achieve effective and efficient ventilation of a dwelling. The LE range of Heat Recovery units incorporate a commissioning panel for use by the installer. Extract rates can be accurately set for normal and boost settings.

Optional Cooker Canopy

LE155/250 Installed with CHW or CHS Cooker Canopy

The boost extract rate will be set at the commissioning panel during installation. In this application the boost facility can be activated by the switch on the cooker canopy.

Additionally, boost can be controlled from a remotely sited Johnson & Starley speed controller (optional). The unit can also be wired to facilitate other boost switching, i.e. humidistat, lighting circuit, etc.

When installed without the cooker canopy, the boost extract rate is set at the commissioning panel during installation. For boost activation during summer mode switching, a number of optional Johnson & Starley controls are available.

The HR Range

The HR Range of Heat Recovery systems from Johnson & Starley have been in manufacture for many years and have proven to be very reliable, with long life expectancy. Models are available for loft, cupboard and cooker hob application.

HR155 - Suitable for Properties up to 350m³

HR250 - Suitable for Properties up to 460m³

1/2 air change @50 pa

When siting the HR155/250 above a cooker hob, the FV15 cooker canopy can be fitted to capture moisture-laden air and cooking smells at source. The canopy comes complete with filter, lighting and boost control.

HR103 - Suitable for Properties up to 380m³

HR203 - Suitalble for Properties up to 720m³

1/2 air change @50 pa

All models in the HR Range come complete with the JS6 Speed control. On the HR155/250 it is incorporated within the casing and is pre-wired. On the HR103 and HR203 it is supplied loose for remote siting. The user has the option to boost the system from normal running to boost and/or switch the unit to extract only for summer use.

All models incorporate the Johnson & Starley aluminium plate heat exchanger. It is robust for long life, has a high efficiency rating and is easily removed for maintenance purposes.