Recessed Electric Over Door Heater

£580.00 GBP

Sale Sold out

VAT excluded. Shipping calculated at checkout.

A powerful fan heater designed to be concealed in a ceiling void or bulkhead above a door, the electric recessed over door heater warms the air around an entrance providing a warm welcome to those entering. Ideal for installation in shops, retail outlets, offices, entrance halls above doors that are typically closed more often than open. The heat output ranges from 3kW to 9kW depending on the selected model.

The included mounting arrangement allows the electric recessed over door heater to be fitted within the ceiling space or over door bulkhead with only the front protruding to deliver the warm air flow. The frames around the outlet grille have a white powder coated finish.

All models are hardwired for installation directly to an electrical circuit by an electrician. All models are available for single phase 230V electricity supply. The RDH-9000 model is also available for three phase 400V supply.

All models are supplied with a remote wall switch for temperature control, offering heat and fan only options. Additional control options include a remote thermostat and/or time controller, which can be purchased at an additional cost.

Standard models are white in colour (RAL 9003).

See the difference between an Air Curtain and an Over-Door Heater here.

Download Brochure

Key Features

3kW, 4.5kW, 6kW and 9kW units available
Mounting suitable for ceiling void or bulkhead installation
Can be mounted from above or below ceiling
Over temperature cut-out with power off reset
Selection of heat and fan only with remote switch unit
Complete with grille frame for a neat installation
Outlet grille and frame have white powder coated finish (RAL 9010) as standard
Other RAL colour powder coating finishes available on request depending on volumes

Technical Specifications

Cat No.		Output: kW	Volts	Heater Length (mm)	Heater Height (mm)	Heater Depth (mm)	Grill Length (mm)	Grill Height (mm)	Grill Depth (mm)	Weight (kg)
RDH-3000	Remote switch included	3	230	570	210	120	625	145	30	6
RDH-4500	Remote switch included	4.5	230	570	210	120	625	145	30	6
RDH-6000	Remote switch included	6	230	800	210	120	855	145	30	13
RDH-9000	Remote switch included	9	230 & 400	1170	210	120	1225	145	30	16

Design and Installation

The heaters are designed to take their input air from the ceiling void. It is, therefore, imperative that a suitably sized inlet grille is provided within the ceiling or enclosure. The minimum clearance to the top inlet grille is 20mm, to the back 30mm and to the front inlet grille 100mm. If one inlet grille is at its minimum dimension the other must have an unrestricted airflow.

For optimum effect the heater should be mounted as close as possible to the top of the doorway. The maximum recommended mounting height is 2.3m for 3kW and 2.8m for 4.5kW, 6kW and 9kW units.

It is recommended a frame is provided around the ceiling opening. The adjustable brackets then allow fixing to the top of this frame or to the face of the ceiling. Alternatively, holes are provided in the top of heater for drop rod fixings.

The grille frame is fixed directly to the ceiling to provide a decorative finish.

3kW, 4.5kW and 6kW units are only suitable for connection to a 230V single phase power supply. The 9kW is suitable for both a 230V single phase or 400V three phase and neutral supply Connection should be made to a suitably fused power supply via the remote switch unit. 4.5kW, 6kW and 9kW must be connected directly to the power distribution board. Connection should be via a 2 pole switched connection unit having a contact separation of at least 3mm in all poles.

All electrical connections should be made by a suitably qualified person in accordance with the latest edition of the IEE Requirements for Electrical Installation (BS 7671:2008).

Download Installation Instructions

View full details