A window is the entire area of glass, a sash is a specific opening in the window.
This answer varies, depending on the gearing type you have selected. Manual/ Electric shaft & Lever can control up to 7 sashes, to a maximum total width of 7.5m. Chain drives individually control one sash at once but can be connected in parallel to open up to 10 at once opened by a single switch.
Not necessarily. Typically our clients believe manual shaft and lever is the cheaper option as it is the most traditional. However, it is more labour intensive and involves a much larger array of components. Electric shaft and lever is often the same price, or cheaper. And in jobs where there are numerous single sashes, chain drives are the cheaper option. We are able to provide multiple quotes with different types of gearing, so if you are unsure which product is right for your project, please just ask us.
Lead times vary, but usually, range between 1-4 weeks.
Our shaft & lever gearing can be powder coated to match the colour of the joinery. However, the motor operating the electric shaft and lever is silver anodised.
Our chain drives typically come in standard colours of black, white and grey. A few of them, however, can be powder coated or come with their original aluminium casing colour of anodized silver.
Yes. Our interlock elevation units come with their own touch control keypad and can provide total home automation for windows. Meanwhile, our chain drives can be connected to a home automation system that may be pre-existing.
OWT are certified partners & installers of KNX, an open protocol that controls all aspects of home and building control such as lighting, heating, cooling and ventilation, blinds/ shutters, security and door communication systems, audio and video, and metering.
Yes. If any project is within 200m from the coastline, a stainless steel chain is normally required. This is due to minimising corrosion from salt air/sea spray.
Our electric gearing (Electric shaft & lever and Chain drives) can be operated in a range of ways.
- Controller – can be connected to rain sensors/thermostats and can be controlled by a remote control.
- Remote control (Kato ADV)
- Central touch keypad (interlock Elevations)
- KNX operations allow control by a central touchpad, mobile devices (Android/IOS), computers and can be integrated with Siri, Alexa and other voice activated systems.
It depends on the circuit but our recommendation is a MAX of 8 units per switch.
We recommend rain sensors if the windows have no significant eaves above to protect them from the rain. We recommend one rain sensor per side of the building, or per direction of which the weather can come from where windows are located. I.e. East, West, North & South.
Yes. We have products that can be integrated with smoke ventilation systems.
Yes. We have one chain drive that can be directly operated by a remote control. Meanwhile, the remainder of our chain drives can be operated by a remote if a controller is installed as well.
They vary in size but average between 40 x 3.5 x 4 cm. Some tandem units can span the length of the window sill if required, however, both chain drives are encased within an aluminium unit that can be colour matched to the joinery.
Yes. Our 230 Volt units are the easiest to wire, as they can be wired in parallel and directly to a switch. Our 24 Volt units require a step-down transformer, which most electricians can supply and are familiar with.
Our quotation letters include all Electrical information required for electricians, however, we are always on hand to help answer any questions.
Yes, we do. We provide a 2 year product warranty, and a 5 year warranty for workmanship.
We are able to supply maintenance documentation to clients upon completion of gearing installation.
We also offer a bi-annual maintenance check-up, wherein we liaise with you via a site visit or phone call to check on things.
At any point, we are here to answer any calls regarding our gearing, when required.
While the wiring does not fall under our scope of work, we can get our partnering electricians to do the work, if required.