{"product_id":"vent-axia-403836-lo-carbon-tempra-lhtp-heat-recovery-unit-longer-cell-humidistat-timer-pullcord","title":"Vent-Axia 403836 Lo-Carbon Tempra LHTP Heat Recovery Unit Longer Cell, Humidistat, Timer \u0026 Pullcord","description":"\u003ch4\u003eVent-Axia 403836 Lo-Carbon Tempra LHTP Heat Recovery Unit – Long Cell with Humidistat, Timer \u0026amp; Pullcord\u003c\/h4\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eVent-Axia 403836 Lo-Carbon Tempra LHTP Heat Recovery Unit\u003c\/strong\u003e is an energy-efficient, through-the-wall ventilation solution designed to improve indoor air quality while reducing heat loss. Featuring a \u003cstrong\u003ebuilt-in humidistat, overrun timer, pullcord control and extended 460mm cell\u003c\/strong\u003e, this decentralised mechanical ventilation with heat recovery (dMVHR) unit is ideal 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 LHTP is particularly suitable for residential refurbishment and social housing projects. Its compact heat exchanger achieves up to 78% temperature efficiency, recovering warmth from extracted air to help maintain comfortable indoor temperatures and reduce 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 control condensation and excess moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverrun Timer:\u003c\/strong\u003e Allows ventilation 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\u003eHeat Recovery Efficiency:\u003c\/strong\u003e Recovers up to 78% of heat from extracted air, helping minimise ventilation-related heat loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended 460mm Cell:\u003c\/strong\u003e Suitable for wall thicknesses between 321mm and 460mm.\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 existing 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 design for suitable bathroom and utility room installations.\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 LHTP uses an integrated heat exchanger to recover warmth from outgoing stale air and transfer it to incoming fresh air. With temperature efficiency of up to 78%, the system helps reduce unnecessary heat loss while maintaining effective ventilation throughout the property.\u003c\/p\u003e\n\n\u003cp\u003eThe unit offers selectable continuous extraction rates of 6 l\/s or 9 l\/s, with a boost rate of 15 l\/s when increased ventilation is required. For intermittent extraction applications, the unit can be configured to operate at 15 l\/s.\u003c\/p\u003e\n\n\u003cp\u003eIts airflow arrangement maintains slight negative pressure within the ventilated room, helping prevent humid air from migrating into adjoining areas. This makes the unit particularly effective for ventilation in moisture-prone spaces.\u003c\/p\u003e\n\n\u003ch5\u003eAutomatic Humidity Control with Timer and Pullcord\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eVent-Axia 403836 LHTP\u003c\/strong\u003e combines three convenient ventilation control features to provide greater flexibility and improved moisture management.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidistat:\u003c\/strong\u003e Detects increased humidity and automatically activates additional ventilation to help reduce condensation and moisture build-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverrun Timer:\u003c\/strong\u003e Maintains extraction after the activation signal has ended, allowing additional time to clear moisture and stale air.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePullcord:\u003c\/strong\u003e Enables manual activation of ventilation when required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese combined controls make the Tempra LHTP particularly suitable for bathrooms, shower rooms and utility areas where humidity levels can change frequently.\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 LHTP consumes as little as 3.2 watts at its lowest continuous extraction setting. This energy-efficient design makes it suitable for applications requiring regular or continuous ventilation.\u003c\/p\u003e\n\n\u003cp\u003eWith operating noise levels as low as 20dB(A), the unit provides discreet ventilation while helping maintain a 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 control\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 developments\u003c\/li\u003e\n\u003cli\u003eProperty refurbishment and renovation projects\u003c\/li\u003e\n\u003cli\u003eReplacement of existing 100mm wall-mounted extractor fans\u003c\/li\u003e\n\u003cli\u003eProperties requiring automatic humidity-controlled heat recovery ventilation\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 403836\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 LHTP – Long Cell with 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\u003eLong Cell Length:\u003c\/strong\u003e 460mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable Wall Thickness:\u003c\/strong\u003e 321–460mm\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 403836 Tempra LHTP is designed for straightforward installation through an external wall using a standard 100mm diameter opening. Its extended 460mm cell accommodates wall thicknesses from 321mm to 460mm, making it particularly suitable for properties with thicker external walls.\u003c\/p\u003e\n\n\u003cp\u003eThe compact heat exchanger design allows the unit to replace many conventional 100mm extractor fans while providing the additional benefits of heat recovery ventilation. Its accessible construction also simplifies routine maintenance and heat exchanger cleaning.\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\/444367.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eVent-Axia 403836 Installation Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vent-Axia","offers":[{"title":"Default Title","offer_id":58946154234237,"sku":"403836","price":416.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/1693\/9618\/files\/VA_LC_Tempra_Range_f7760c3d-dabf-4763-99c5-7a716fbb49f7.webp?v=1792556803","url":"https:\/\/b2belectrical.com\/products\/vent-axia-403836-lo-carbon-tempra-lhtp-heat-recovery-unit-longer-cell-humidistat-timer-pullcord","provider":"B2Belectrical.com","version":"1.0","type":"link"}