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RH Recessed Fan Assisted Heaters

Recessed Fan Heater
  • Recessed fan heater for use as overdoor heater or general commercial space heater
  • Ideal for shops and a wide range of commercial premises
  • Visually unobtrusive as only the white egg-crate grille is visible
  • Optional controller for variable output and fan only settings

For multi-heater installations we recommend SystemX

Range & Prices

The prices shown are list prices and perfectly safe to use for budget purposes. Contact your electrical wholesaler for final prices.


Model kW Volts List Price
RH-20 2 230 £329.00
RH-30  3 230 £435.00
RH-60  6 230 £802.00


Each heater can be controlled by one wall-mounted controller and/or one thermostat. 6kW heaters have a built-in relay meaning that the minimum switching capacity of a suitable thermostat is reduced to 10A.

Model Description List Price
CS 7 01 CS-7 Switch (on/off/high heat/low heat/fan only) £98.00
RD16 web RD16 Electronic programmable thermostat 16A (recessed) £65.00
programmable thermostat RT16 Electronic programmable thermostat 16A £144.00
thermostat RT26 Electronic programmable thermostat 26A £177.00
W16CW web 1 WD16 Wi-Fi electronic thermostat 16A (recessed – free app) £130.00
WT16 digi front web 1 WT16 Wi-Fi electronic thermostat 16A (free app) £222.00
WT26 digi front web WT26 Wi-Fi electronic thermostat 26A (free app) £269.00
RST3 IN Thermostat RST3-IN Mechanical thermostat 16A £60.00

A contactor can be used to enable a thermostat or timer to switch a load larger than its switching capacity.

A pair of 3kW heaters welcoming customers in a shopping mall

A pair of 3kW heaters welcoming customers in a shopping mall

RH-30 providing comfort heat in a charity shop

An RH-30 creating a warm entrance to a high street charity shop 

Technical Specification

Colour: Exposed surfaces white RAL9016
Other surfaces zinc plated steel
Finish: Epoxy polyester powder coating
Construction: 0.9mm steel case
Aluminium egg-crate grille (white)
Fan Assembly: Tangential fan with low noise aluminium fan blades
Shaded pole high performance motor
Factory lubricated bearings (servicing not required)
Heating Element: High quality nickel-chrome resistance wire supported by ceramic plates and fitted with an automatically resetting over-temperature device
Control: All models can be controlled by a wall-mounted CS-7 controller and/or an RST2-IN or RST-TP thermostat
Installation: Designed be recessed into a ceiling or bulkhead with fixing through the front face.
Air discharge can be vertical or horizontal
Recommended mounting heights 1.8m to 3m above floor level
Electrical Connections: 2 rear mounted terminal enclosures provided (one for electrical supply and one for connection to remote-mounted control devices).
Links can be removed to reduce heater output (2kW to 1kW, 3kW to 2kW and 6kW to 4kW)
Guarantee: 1 year

Performance Data

Model kW Volts Airflow (m³/h) dB* @ 2m Mounting Height (m)
RH-20 2 230 132 50 1.8 to 3.0
RH-30 3 230 245 56 1.8 to 3.0
RH-60 6 230 490 58 1.8 to 3.0

* Noise levels are factory tested, not laboratory tested.

Physical data

Model Grille Dimensions (mm)  Aperture Size (mm) Insert Depth (mm) Weight (kg)
Width Height Width Height
RH-20 363 230 315 150 160 3.3
RH-30 597 230 560 150 160 4.2
RH-60 1198 230 1148 150 160 11
6kW heater used as an overdoor heater in a hotel

RH heaters are designed for easy install into plasterboard ceilings 

Spare Components

This is a list of the more frequently requested spare components.  Should you require a component that is not listed please contact BN Thermic.

Part No  Description
AS-SCH-30 Fan/motor/element assembly (3kW) used in RH-30 and RH-60

Heater Selection

If you would like the experts at BN Thermic to select a suitable heating for your application, please click here to access our enquiry form.  Simply provide as much information as you have available and we will respond with a detailed proposal.

Enquiry Form

The RH series can be used for two distinctly different applications: as an overdoor heater or as a general space heater.

Overdoor Heaters

Select the correct length of heater to suit the door width.  The RH-30 (3kW) is designed for installation over a single door whilst the RH-60 (6kW) is designed for installation over a double door. The RH-20 (2kW) is rarely used for this application.

Space Heating

In simple terms the output of the RH heater or heaters must be greater than the heat losses from the building during periods of cold weather.  A small amount of heat is lost through the walls, ceilings and floors with more significant losses through windows and doors.

To estimate the heat loss from your building you may like to use our heat calculation tool

Heat Calculator

The estimated heat loss figure is the absolute minimum kW output that you should consider installing.  We would suggest adding approximately 50% to this figure to allow for an acceptable warm up time in cold conditions as well as making allowances for exceptional weather conditions and possible errors in the original data used in the estimate.

Having established the minimum kW output required, select the minimum number of heaters needed to meet the kW requirement.