{"product_id":"envirovent-qrst-lc-quro-dmev-extractor-fan-with-timer","title":"Envirovent QRST-LC Quro dMEV Extractor Fan with Timer","description":"\u003ch2\u003e\u003cspan\u003eEnviroVent QURO LC QRST-LC 100mm Continuous Extractor Fan with Timer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eEnviroVent QURO LC QRST-LC\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a white, continuously running extractor fan designed to provide background ventilation in bathrooms, en-suites, kitchens, utility rooms and WCs. It combines adjustable airflow, timer-controlled boost and a low-watt DC motor, helping remove moisture and everyday odours without relying solely on occasional extraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm dMEV fan\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, meaning it provides decentralised mechanical extract ventilation: an individual fan extracts air from the room directly outside or through dedicated ductwork. It is suited to residential ventilation projects where continuous extraction forms part of the property’s ventilation design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContinuous ventilation with extra extraction when needed\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe QURO LC operates at a lower \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etrickle speed\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e throughout normal use. This maintains background extraction between showers, cooking and other activities that introduce moisture into the home.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen more extraction is required, an external switch activates the higher \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eboost speed\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Once the activation ends, the over-run timer keeps the fan at boost for the selected period before returning it to its background setting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis arrangement helps manage moisture throughout the day, rather than extracting air only while a room is occupied. The installer can select trickle settings between \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5 and 19 l\/s\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to suit the ventilation requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable timer and automatic over-run control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe QRST-LC includes an adjustable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1–30-minute over-run timer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing the installer to set how long boost extraction continues after the external switch is released.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn automatic timer mode is also available. This varies the over-run period according to how long the external switch has been activated, providing an alternative to using the same fixed delay every time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThis model does not include a humidity sensor or pullcord.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e It is the timer-controlled version of the QURO LC range. Where automatic humidity activation is required, the corresponding model is QRHT-LC; QRHTP-LC adds humidity sensing, timer control and a pullcord.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-energy operation and quiet background running\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe low-watt DC motor has a published \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaximum power consumption of 4.5W\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Consumption depends on the operating setting, so this maximum should not be treated as its constant power use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor noise-sensitive rooms, EnviroVent publishes a sound pressure level as low as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8.8 dB(A) at 5 l\/s\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, measured at three metres in free-air conditions. Higher airflow settings and different installation arrangements produce different sound levels, making correct speed selection important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe range is also \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSAP PCDB listed\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with specific fan power down to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.08 W\/(l\/s)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e in the applicable configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInstaller controls for wall and ducted applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA side-mounted digital display gives access to the fan’s airflow, timer and installation settings, alongside operating information and error codes. Separate \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ethrough-wall and ducted modes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allow the installer to configure the unit for its installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBack-pressure detection helps the fan respond to changing resistance. Duct length, bends and the external termination still influence performance, so airflow should be checked during commissioning. EnviroVent publishes a maximum airflow of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30 l\/s, equivalent to 108m³\/h\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, rather than a guaranteed rate through every duct arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact white design with 100mm duct connection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe fan measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e175mm high × 175mm wide\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with an overall depth of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e128.5mm including the spigot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e99mm outlet spigot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for nominal 100mm ducting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWall and ceiling mounting are supported, following the manufacturer’s permitted orientations and installation requirements. The unit carries an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIP45 rating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with its final position and electrical connections selected appropriately for the room.\u003c\/span\u003e\u003c\/p\u003e","brand":"Envirovent","offers":[{"title":"Default Title","offer_id":57635836297591,"sku":"QRST-LC","price":73.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/8927\/2802\/files\/envirovent-quro-lc-qrst-lc-white-continuous-extract-fan-installed-bathroom-wall-view.webp?v=1792752035","url":"https:\/\/www.electricalsonline.co.uk\/products\/envirovent-qrst-lc-quro-dmev-extractor-fan-with-timer","provider":"Electricals Online","version":"1.0","type":"link"}