HRV 1.35 Q Plus - Enthalpy

Ultra energy efficient MVHR with Enthalpy Energy Recovery

For use in small to medium sized dwellings

The high capacity HRV1.35 Q Plus continuously running whole-house ventilation unit with heat recovery maintains an ultra compact size despite its improved airflow performance

Combining extremely low power consumption and a highly efficient heat exchanger, this unit remains versatile enough insize to be equally as functional in larger apartments as it is in small to medium sized dwellings.

The counter flow enthalpy heat exchanger has a selectivepolymer membrane film to achieve low air leakage levelswhile providing moisture recovery from the exhaust air. These models are ideal for living areas with low humidity, avoiding frost build up at low temperatures, they also have an antimicrobial membrane and long life cycle.

The HRV1.35 Q Plus comes in Eco versions only with a 100% airflow diverting Summer Bypass. It also includes intelligent humidity options and can be fitted with the auralite® status indicator or the auramode®aurastat® or aura-tTM controllers.

Features & Benefits

  • Highly versatile compact unit
  • Highly efficient enthalpy counter flow heat exchanger
  • Accepts 100mm or 125mm diameter ducting, no adapters required
  • Intelligent frost protection
  • G3 filters as standard, G4 as an option
  • Fully adjustable boost overrun timer 0-60 minutes; can be used with non-latching (momentary) switches to prevent unit from being accidentally left in boost mode
  • Setback facility to reduce ventilation where local regulations allow
  • Intelligent Summer Bypass and humidity controls
  • Volt free switching control
  • Intelligent controller, quick and easy to commission
  • Lightweight for easy handling
  • Re-usable plastic filter frame
  • Quick fix mounting bracket
  • Patented
  • Independent fan adjustment
  • SUMMERboost® facility
  • Effective in reducing pollutants in the home and improving Indoor Air Quality (IAQ), therefore reducing the risk of Toxic Home Syndrome

Eco BE Models;

  • Compatible with aura range; aurastat®auramode®aura-tTM and auralite® (TP519) controllers
  • Available in left and right handed configurations
  • Duct heater control (requires independent power supply)
  • BMS compatible via RS485

Eco HMBE Models;

  • Compatible with auralite® status (TP518) indicator
  • Quick access filter doors as standard
  • For further details specific to this product, please see the manual TP408HMB.

For explanations of HRV features, click here.


System 4

Heat Cell

Technical Data (Typical conditions at 140m3/h)

  • Heat change rate 80%
  • Degree of moisture change 70%
  • Leakage at 100 Pa < 1%
  • Temperature stability - 25°C up to 65°C

Features & Benefits

  • No transfer of gases or pollutants - only heat and steam are transferred by the membrane
  • Long life cycle - permanent transmission parameters
  • Minimum leakage
  • Optimum flow behaviour, low pressure loss
  • Frost- and heat-proof
  • High, sensitive and latent transmission rate
  • Antimicrobial (Microban® - integrated hygiene protection)
  • Can be cleaned using water
  • European manufactured heat cell


Drawings & Dimensions




Product Code

HRV1.35 Q Plus HMB Eco Enthalpy auralite® ready - TP408HMBE - Energy Rating A

HRV1.35 Q Plus B Eco-Aura Enthaply auramode®aurastat® and aura-tTM controller or auralite® indicator ready 
TP418BE/LH (left hand config) or
TP418BE/RH (right hand config) - Energy Rating A

XP40032/099 - G3 Filters fitted as standard
XP46022/099 - G4 Filters fitted on request


EU RoHS Directive compliant

Conforms to requirements of EC council directives relating to Electromagnetic Compatibility and Electrical Safety: 2006/95/EC (LVD)
2004/108/EC (EMC)
EN 60335-1:2002/A2:2006
EN 60335-2-80:2003/A1:2004
CE Marked.
Other non-UK info available on request



Dimensions: 600mm wide x 430mm high (excluding ports) x 285mm deep (295mm with mounting bracket)
Weight: 18kg
Finish: White Paint
Housing: Zintec sheet steel housing, powder coated white
Internals: Expanded polypropylene (EPP)
Heat Exchanger: Selective polymer membrane film
Internal insulation: Closed cell foamed Nitrile rubber, class ‘O’ fire rating
Standard filters: Grade G3 synthetic filters
Guarantee period: 3 years (UK only)
Electrical: 230V ~ 50/60Hz, 3A fuse
Installation: Install in accordance with Good Practice, such as the Domestic Ventilation Compliance Guide (England & Wales) and the Residential Ventilation Association recommendations Maintenance: Service and filter clean/replacement subject to local environment - see Product Manual

More information / 01206 713800


 Nominal fan performance

HRV1.35 Q Plus performance graph

All units offer 100% variable speed control.
*@FID (0 Pa)

 Acoustic Data

HRV1.35 Q Plus acoustic data