Lo-Carbon Tempra SELV LHTP

  • Fits in 100mm diameter hole - ideal for refurbishments
  • Up to 78% heat recovery
  • Available in 2 wall depths: 320mm and 460mm
  • Reduces the home's carbon footprint
  • IPX4 Rated
  • Summer setting (extract only)
  • Helps prevent noise ingress
  • Continuous running or intermittent extract
  • Meets current Building Regulations Approved Documents F and L
  • Low power consumption - only 3.2W
Vent-Axia Lo-Carbon Tempra 360° view
Tempra Image

Product Overview

Ventilation Type
Decentralised Mechanical Heat Recovery (dMVHR)
Social Housing
Product Range
Lo-Carbon Tempra
Ducting/Connection Size
IP Rating

Through-The-Wall Heat Recovery Unit
The Vent-Axia Lo-Carbon Tempra is designed to fit in 100mm diameter hole and is suitable for refurbished properties in kitchen, bathroom, toilet or utility rooms. The unit meets the performance requirements for continuous extract fans under the current Building Regulations Approved Document F.

The Tempra is available in three models, a P version with pullcord control, a T version with overrun timer and an HTP version with built-in pullcord, overrun timer and humidistat. Two spigot lengths are available; 320mm and 460mm.

The manual summer setting allows the unit to be set to extract only, helping to prevent a dwelling becoming too warm in hot summer conditions.

Tempra can be set to run continuously at 6 l/s or 9 l/s, boosting up to 15 l/s, recovering heat from extracted air and returning it to the dwelling. The unique, compact heat exchanger has a temperature efficiency up to 78%, saving energy and reducing your carbon footprint. For intermittent extract the Tempra is set to 15 l/s.

The Tempra is also designed so that the replacement air being introduced is at a reduced rate ensuring that the room being ventilated is still under a slight negative pressure. This ensures that fresh air is bought into the room from the rest of the house preventing humid air migrating.

The Lo-Carbon EC/DC motor with twin impellers consumes as little as 3.2 Watts on trickle rate and runs almost silently at only 20dB(A).

Typical Installation
The unique heat exchanger design allows the Tempra to be fitted in a 100mm diameter hole, allowing it to replace standard 100mm extract fans while giving all the benefits of heat recovery. Maximum wall thickness is 460mm.

A longer version of the Tempra is available, designed for installations where the wall thickness is between 321mm and 460mm. 460mm models are identified by an ‘L’.

Easy installation and maintenance with simple construction Tempra is both easy to fit in the same location as an existing 100mm diameter fan, and with easy access to the heat exchanger for maintenance.

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Installation Instructions

Catalogue Pages

3D Revit Files

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