And it doesn't stop there
We also offer several optional extras which can be fitted to your ventilation system to ensure optimum air quality and/or a more comfortable temperature in your home.
Tempervents
Here at last, a unique and revolutionary new way to cost-effectively warm the air that the DVS ventilation system brings into your home! Only DVS can offer you Tempervents - an ingenious new device that features a low-wattage heating element for fitting to any or all of your ceiling vents (they fit to both new and existing DVS Classic ventilation systems). The result? Cost-effectively pre-warmed air that you can target into the rooms of your choice ... more>
Air-Warmer

Designed primarily for the Classic DVS Ventilation System, the DVS Air-Warmer pre-warms (or takes the chill off) cooler air from the roof space during winter months before it enters the home. This pre-warmed air will not feel hot as it will only be a similar temperature to that already in your home. Even with the DVS Air-Warmer operating, normal home heating will still be required to maintain a comfortably heated living environment and to assist in controlling condensation.
An Air-Warmer can also be fitted to the G3 Reclaim Ventilation System to supply additional warmth to the incoming air if required.
To best manage heating costs, all Air-Warmers feature a timer, enabling you to pre-set the time and days of the week when the DVS Air-Warmer will switch on and off. As a further power-saving measure, Air-Warmers fitted to a DVS G3 or G3 Reclaim can also be programmed to switch on when the roof temperature drops below a certain level.
For energy-efficient operation, Air-Warmers automatically adjust power consumption (up to a maximum of 2kW) to maintain the Air-Warmer's output temperature.
Automatic Summer Ventilation
Designed solely for the Classic DVS Ventilation System, the purpose of Automatic Summer Ventilation is to deliver a continuous supply of fresh, filtered air, drawn from outside the roof space, when the roof space itself becomes too hot.
This allows you to ventilate your home with fresh air throughout the summer months - without the need to leave windows or doors open. DVS Automatic Summer Ventilation allows you to reduce pollen, dust, insects and noise, and improve your home's security while enabling you to enjoy a constant supply of fresh, cooler air, day and night.
Automatic Summer Ventilation, which can only be fitted to the G3 model from the Classic DVS range, regulates the incoming air depending on the temperature of the outside air and the roof space air, according to your comfort settings on the G3 control panel.
External Air Supply Unit
Designed specifically for use with the Classic DVS Ventilation System, an External Air Supply Unit draws air directly from outside, rather than the roof space - ideal for homes that suffer from damp roof spaces or roof spaces with poor air quality. One of our Consultants can advise whether an External Air Supply Unit may be necessary for your home.
Roof Space Vent
Designed specifically for use with the G3 Reclaim, an optional Roof Space Vent can be installed to supply free solar heat from the roof space (when available) by merging this air to the air being extracted from the home and transferring this additional heat to the fresh, incoming air. In this way, the heat from the roofspace can be utilised without bringing any of the actual roof space air into the home.