Vent-Axia HR100rs


(Price Exc. VAT)

Vent Axia HR100RS Heat Recovery System – 435004

The HR100RS is ideal for single bedroom/bathroom applications such as hotel rooms, nursing homes and residential care homes.

The HR100RS features bottom access and is ideal for installation on the ceiling slab above a suspended ceiling.

An integral heat exchanger transfers heat from the outgoing stale air to the fresh air supply, raising the supply air temperature whilst at the same time reducing its relative humidity.

Please note – You can purchase the heat recovery unit with or without the ductwork on this listing and the Unit and room ducting kits include the heat recovery unit


Key Features

  • Ideal for one bedroom and bathroom
  • Supply and extract air ventilation with heat recovery
  • Boost operation with wall switch
  • The unit comes fitted with a single 2-speed motor
  • The unit provides superior control of condensation and odours
  • Suitable for use in bathrooms or small internal rooms

Technical Features

  • Extracts up to 40 m3/hr @ 50 Pa
  • Suitable for houses up to 40 m2
  • Up to 70% thermal efficiency
  • Dimensions (L x H x W): 305 x 160 x 250 (mm)
  • Ducting: 100mm
  • Suitable for rooms up to 40 m2. / extract from 1 wet room
  • Up to 18 l/s (64m3h/r) Max capacity (extract airflow).

The HR100RS is compatible with 100mm diameter flexible ducting which fits onto the unit via the metal spigots and can be fastened using worm drive clips.

A 22mm diameter condensate drain connection is situated on the base of the unit, this should be connected to a suitable outlet for condensate drainage.


The enclosure is constructed of powder coated galvanised metal

Technical Specification

HR100RS Technical Data

Model Vent Axia HR100RS – 435004
Heat Recovery efficiency % 70%
Digital Controller No
Boost Switch control Yes – on/off
Interactive control No
Humidity control Room sensor (accessory)
Airflow rate Max m3/h 64
Airflow rate @ 50Pa m3/h 43
Max dwelling size M2 40
Max room extraction 1 extraction points
Specific fan power (lowest) N/A
Dimensions W x H x D (mm) 305 x 240 x 160
Weight 5.6kg
Summer Bypass  No
Frost protection  No
Sound level @3m db.(a) N/A
Mounting Ceiling
Ductwork connections Side
Duct Diameter 4 x100mm
Condensate drain yes
warranty 1-year
Country of manufacture UK
Heat exchanger Counterflow heat exchanger (PVC)
Available room sensors Humidity, Timer, Pir
SAP Appendix Q No
Fireplace mode No
Alarm system integration No
Passive House No
ERP rating B
SKU 370377

Ducting Kit Info

HR100RS Ducting Kit

Description Product Number      HR100 Kit    
100mm Metal Ceiling Supply Valve MW105 1
100mm Metal Extract Valve MW104 1
100mm – Louvered Grill White Round Spigot        GPVC100W 1
10m Roll 100mm Insulated Flexible Ducting IFD100 1
Roll Silver Foil Tape  ST50 1
Cable Ties (Pack of 10) CT550 1
Vent Axia HR100RS 435004 1
QV Rocker Switch QV-Rocker


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