Rhino TQ4 230V Electric Infrared Cabinet Heater 2200w - 7-Day Timer

Who Is This For

The Rhino TQ4 is used primarily by plasterers, painters, decorators, and general construction operatives who need directed radiant heat for drying work or personal warming on site. It is equally suited to site managers and facilities teams in open warehouses and distribution centres where conventional convection heating fails to keep pace with heat loss through high ceilings and frequent door movement. The 7-day programmable timer makes it a practical choice for any site or facility where the heater needs to run on a set schedule without manual operation each day.

Typical Applications

• Drying freshly plastered or rendered walls by directing radiant heat at the surface, accelerating cure time without needing to raise the ambient temperature of the whole room.

• Warming painters and decorators working in partially heated buildings during cold weather, using directed radiant heat at the working zone rather than attempting to heat the full space.

• Providing localised warmth for construction operatives working in open warehouses, partially enclosed structures, or buildings with frequent door openings where convection heat dissipates rapidly.

• Running overnight or early morning heating cycles in workshops and welfare units using the 7-day programmable timer, bringing the space up to temperature before operatives arrive without manual intervention.

• Supplementary heating in large distribution centres and warehouses where central heating cannot maintain adequate temperature at ground level workstations.

• Site welfare unit heating during autumn and winter working periods, where a portable, self-contained heater with timed operation simplifies the welfare setup.

How to Use

Step 1: Position the heater on a firm, level surface, directed at the area or surface to be heated. Keep flammable materials clear of the heater at all times.

Step 2: Connect the 13A plug directly to a 230V mains supply. Do not use extension leads unless rated to handle the full load.

Step 3: Use the soft-touch LED control panel to select the heat setting. To operate on one element only, switch the second element off at the rear of the heater. To use both elements, leave both rear switches in the on position.

Step 4: Set the thermostat to the required temperature level. The thermostat maintains that level automatically by cycling the elements on and off once the target is reached.

Step 5: To programme the 7-day timer, use the control panel to set the days and times for heating to start and stop. The timer activates the heater automatically at the programmed times without manual intervention.

Step 6: When finished, switch off via the control panel and disconnect from the mains. Allow the heater to cool before covering, moving, or storing. Use the integrated wheels and carry handle for repositioning.

Common Mistakes

• Positioning too far from the target surface for drying work: infrared heat follows the inverse square law, the intensity drops sharply with distance. For drying plaster or paintwork, position the heater close enough for the surface to feel warm to the back of the hand at a safe distance. Move it along the wall as sections dry.

• Leaving the open window detection to do all the energy management: open window detection enters the heater into standby if the temperature drops sharply, but it is not a substitute for switching off when the space is genuinely unoccupied for extended periods.

• Using the heater near freshly applied solvent-based paint without adequate ventilation: infrared heat can accelerate the release of solvent vapours from paint and coatings. Ensure adequate ventilation when using this heater for drying solvent-based materials.

• Allowing the fireguard to become blocked: the fireguard must remain clear. Do not hang materials over it or allow tools or debris to rest against it during use.

• Moving the heater without allowing it to cool: the elements and surrounding surfaces reach very high temperatures during operation. Always switch off and allow adequate cooling time before repositioning using the wheels and handle.

Safety

This heater produces direct infrared radiant heat and reaches very high surface temperatures during operation. Keep all flammable materials, textiles, and combustible objects away from the heater during use. Do not use in explosive or flammable atmospheres. Do not use near flammable liquids, gases, or compressed gas cylinders. Do not use outdoors or in high-condensation environments. The tilt cut-out switch activates if the heater is knocked over or tilts significantly, cutting power to the elements. Open window detection enters the heater into standby if the ambient temperature drops sharply, indicating a door or window has been left open. Both safety features protect against unattended operation risks but do not substitute for switching the heater off when the space is vacated for extended periods.

Maintenance

Wipe the body with a damp cloth after use. Do not use solvents or abrasive materials on the HDPE body or the fireguard. Keep the fireguard clear of dust and debris. The elements are not user-serviceable, do not attempt to open the heater or access the elements. If an element fails, contact the Rhino service team or the CMT sales team for replacement options. Store in a clean, dry location when not in use. The HDPE body is impact-resistant but should not be stored under heavy loads that could distort the moulded housing.