{"product_id":"vent-axia-443311-lo-carbon-tempra-htp-heat-recovery-unit-humidistat-timer-pullcord","title":"Vent-Axia 443311 Lo-Carbon Tempra HTP Heat Recovery Unit with Humidistat, Timer \u0026 Pullcord","description":"\u003ch4\u003eVent-Axia 443311 Lo-Carbon Tempra HTP Heat Recovery Unit with Humidistat, Timer \u0026amp; Pullcord\u003c\/h4\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eVent-Axia 443311 Lo-Carbon Tempra HTP Heat Recovery Unit\u003c\/strong\u003e is a compact, energy-efficient through-the-wall ventilation system designed to improve indoor air quality, control excess humidity and reduce heat loss. Featuring an \u003cstrong\u003eintegrated humidistat, overrun timer and pullcord control\u003c\/strong\u003e, this decentralised mechanical ventilation with heat recovery (dMVHR) unit provides an effective solution for bathrooms, kitchens, toilets and utility rooms.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to fit a standard 100mm diameter wall opening, the Lo-Carbon Tempra HTP is particularly suitable for residential refurbishment, social housing and extractor fan replacement projects. Its advanced heat exchanger achieves up to 78% temperature efficiency, recovering warmth from extracted air to help maintain comfortable indoor temperatures while reducing ventilation-related energy consumption.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Humidistat:\u003c\/strong\u003e Automatically responds to increased humidity levels, helping reduce condensation and excess moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverrun Timer:\u003c\/strong\u003e Allows extraction to continue after activation, helping remove lingering moisture, odours and stale air.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePullcord Control:\u003c\/strong\u003e Provides convenient manual operation when additional ventilation is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 78% Heat Recovery:\u003c\/strong\u003e Efficient heat exchanger recovers warmth from outgoing air, helping minimise heat loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Ventilation:\u003c\/strong\u003e Selectable extraction rates of 6 l\/s or 9 l\/s, with boost extraction up to 15 l\/s.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Energy Consumption:\u003c\/strong\u003e Efficient Lo-Carbon EC\/DC motor consumes as little as 3.2W at trickle speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet Operation:\u003c\/strong\u003e Low-noise performance of approximately 20dB(A) at the lowest operating setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 100mm Installation:\u003c\/strong\u003e Fits standard 100mm diameter wall openings, making it suitable for replacing conventional extractor fans.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSummer Extract Mode:\u003c\/strong\u003e Manual extract-only setting helps prevent unwanted heat recovery during warmer weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX4 Rated:\u003c\/strong\u003e Splash-resistant construction for suitable bathroom and utility room installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Airflow Design:\u003c\/strong\u003e Maintains slight negative pressure to help prevent humid air from spreading into adjoining rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Maintenance:\u003c\/strong\u003e Accessible heat exchanger simplifies routine cleaning and servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eEfficient Heat Recovery Ventilation\u003c\/h5\u003e\n\u003cp\u003eThe Vent-Axia Lo-Carbon Tempra HTP uses a compact heat exchanger to transfer warmth from outgoing stale air to incoming fresh air. With temperature efficiency of up to 78%, the system helps reduce unnecessary heat loss while providing effective ventilation throughout the property.\u003c\/p\u003e\n\n\u003cp\u003eThe unit can be configured for continuous extraction at 6 l\/s or 9 l\/s, with a boost extraction rate of 15 l\/s when additional ventilation is required. For intermittent extraction applications, the unit can operate at 15 l\/s.\u003c\/p\u003e\n\n\u003cp\u003eIts airflow arrangement maintains slight negative pressure within the ventilated room, helping reduce the movement of humid air into adjoining spaces. This makes it particularly useful for managing moisture and condensation in bathrooms, kitchens and utility rooms.\u003c\/p\u003e\n\n\u003ch5\u003eAutomatic Humidity Control with Timer and Pullcord\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eVent-Axia 443311 Tempra HTP\u003c\/strong\u003e combines three practical ventilation controls to provide flexible operation and effective moisture management.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Humidistat:\u003c\/strong\u003e Detects increased humidity and automatically activates additional extraction to help reduce condensation and moisture build-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverrun Timer:\u003c\/strong\u003e Keeps the ventilation operating after the activation signal has ended, allowing additional time to remove humid air and unwanted odours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePullcord Control:\u003c\/strong\u003e Enables convenient manual activation of ventilation when required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese combined functions make the Tempra HTP particularly suitable for bathrooms, shower rooms and utility areas where humidity levels can fluctuate throughout the day.\u003c\/p\u003e\n\n\u003ch5\u003eLow-Energy and Quiet Performance\u003c\/h5\u003e\n\u003cp\u003eEquipped with a high-efficiency Lo-Carbon EC\/DC motor and twin impellers, the Tempra HTP consumes as little as 3.2 watts at its lowest continuous extraction setting. This energy-efficient design helps minimise running costs in applications requiring regular or continuous ventilation.\u003c\/p\u003e\n\n\u003cp\u003eWith operating noise levels as low as 20dB(A), the unit delivers discreet ventilation while helping maintain a comfortable and peaceful indoor environment.\u003c\/p\u003e\n\n\u003ch5\u003eIdeal Applications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eBathrooms and shower rooms requiring humidity-controlled ventilation\u003c\/li\u003e\n\u003cli\u003eToilets and WC facilities\u003c\/li\u003e\n\u003cli\u003eDomestic kitchens requiring extract ventilation\u003c\/li\u003e\n\u003cli\u003eUtility rooms and laundry areas\u003c\/li\u003e\n\u003cli\u003eSocial housing and residential properties\u003c\/li\u003e\n\u003cli\u003eHome renovation and refurbishment projects\u003c\/li\u003e\n\u003cli\u003eReplacement of existing 100mm wall-mounted extractor fans\u003c\/li\u003e\n\u003cli\u003eProperties requiring automatic humidity control with timer and manual operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Vent-Axia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Code:\u003c\/strong\u003e 443311\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Range:\u003c\/strong\u003e Lo-Carbon Tempra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HTP – Humidistat, Timer and Pullcord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation Type:\u003c\/strong\u003e Decentralised Mechanical Ventilation with Heat Recovery (dMVHR)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Through-the-wall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct Connection Size:\u003c\/strong\u003e 100mm diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Recovery Efficiency:\u003c\/strong\u003e Up to 78%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Extraction Rate:\u003c\/strong\u003e 6 l\/s or 9 l\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Extraction Rate:\u003c\/strong\u003e 15 l\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Power Consumption:\u003c\/strong\u003e 3.2W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Level:\u003c\/strong\u003e As low as 20dB(A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Lo-Carbon EC\/DC with twin impellers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Control:\u003c\/strong\u003e Integrated humidistat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimer Function:\u003c\/strong\u003e Overrun timer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Control:\u003c\/strong\u003e Pullcord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSummer Mode:\u003c\/strong\u003e Manual extract-only operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP Rating:\u003c\/strong\u003e IPX4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Bathrooms, kitchens, toilets and utility rooms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eSimple Installation and Maintenance\u003c\/h5\u003e\n\u003cp\u003eThe Vent-Axia 443311 Tempra HTP is designed for straightforward installation through an external wall using a standard 100mm diameter opening. Its compact heat exchanger design allows the unit to replace many conventional 100mm extractor fans while delivering the additional benefits of heat recovery ventilation.\u003c\/p\u003e\n\n\u003cp\u003eThe Lo-Carbon Tempra range is available with different cell lengths to accommodate varying wall thicknesses. The standard 320mm and extended 460mm versions should be selected according to the installation requirements.\u003c\/p\u003e\n\n\u003cp\u003eIts straightforward construction provides convenient access to the heat exchanger for routine cleaning and maintenance, helping maintain efficient airflow and reliable performance over time.\u003c\/p\u003e\n\n\u003cp\u003eThe Lo-Carbon Tempra range is designed to meet the performance requirements for continuous extract ventilation under Building Regulations Approved Document F, subject to correct installation and system configuration.\u003c\/p\u003e\n\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/asset.eezybridge.com\/nc\/ba7b9546-29dd-40c4-87a7-885627281b87\/VA_LC_Trmpra_Catalogue.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eVent-Axia Lo-Carbon Tempra Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/asset.eezybridge.com\/nc\/ba7b9546-29dd-40c4-87a7-885627281b87\/443523.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eVent-Axia 443311 Installation Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vent-Axia","offers":[{"title":"Default Title","offer_id":58946154594685,"sku":"443311","price":450.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/1693\/9618\/files\/VA_LC_Tempra_Range_a3a2b68c-a611-4542-8c19-1d47a74144a8.webp?v=1792556810","url":"https:\/\/b2belectrical.com\/products\/vent-axia-443311-lo-carbon-tempra-htp-heat-recovery-unit-humidistat-timer-pullcord","provider":"B2Belectrical.com","version":"1.0","type":"link"}