- 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.
Heaters
| Model | kW | Volts | List Price |
| RH-20 | 2 | 230 | £313.00 |
| RH-30 | 3 | 230 | £418.00 |
| RH-60 | 6 | 230 | £741.00 |
Controls
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 | |
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CS-7 | Switch (on/off/high heat/low heat/fan only) | £93.00 |
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RD16 | Electronic programmable thermostat 16A (recessed) | £62.00 |
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RT16 | Electronic programmable thermostat 16A | £137.00 |
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RT26 | Electronic programmable thermostat 26A | £169.00 |
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WD16 | Wi-Fi electronic thermostat 16A (recessed – free app) | £125.00 |
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WT16 | Wi-Fi electronic thermostat 16A (free app) | £199.00 |
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WT26 | Wi-Fi electronic thermostat 26A (free app) | £235.00 |
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RST3-IN | Mechanical thermostat 16A | £75.00 |
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
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 |
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.
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
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.
Videos
Images
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- RH20 front view
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- RH30 front view
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- RH60 front view
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- RH20 rear view
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- RH30 rear view
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- RH60 rear view
Installation Images
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- RH heater creating a warm welcome to customers in a high street charity shop
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- RH recessed heaters are commonly used in hotel foyers and office reception areas
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- RH heaters free up wall space and are easily recessed into plasterboard ceilings
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- RH recessed fan heaters are hand assembled in the UK
