Oscar 1446 Products
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Frequently Asked Questions
How does the 1446mm height of this Oscar Aluminium model influence its heat output efficiency compared to standard 600mm panels?
The Oscar 1446mm High radiator utilizes a vertical "chimney effect" to drive convection. Technical tests show that each section of this 1446mm model delivers approximately 836 BTUs (245 Watts) at Delta T50. This is significantly higher per linear meter of wall space than a standard horizontal radiator. By utilizing vertical wall space, the 1446mm columns accelerate the upward airflow, creating a more powerful convection current that circulates warm air throughout the entire room volume more effectively than lower-level emitters.
What are the specific technical benefits of using the Oscar 1446mm Aluminium radiator with a low-temperature Air Source Heat Pump (ASHP)?
The Oscar 1446mm is an ideal emitter for ASHP systems due to the high thermal conductivity of aluminium. In low-temperature systems (operating at Delta T30 or T40), maintaining heat output is critical. The large surface area of the 1446mm tall columns, combined with aluminium's ability to respond rapidly to water temperature changes, ensures the radiator remains effective even when flow temperatures drop to 45
What is the exact depth projection of the Oscar 1446mm radiator and does it require specific heavy-duty brackets?
The Oscar 1446mm sections have a depth of 116mm. When installed, you must account for the wall bracket clearance, bringing the total projection to approximately 146mm. Despite its height, the aluminium construction is lightweight (approx 3-4kg per section filled), meaning it does not strictly require heavy-duty masonry anchors. It can often be technically feasible to mount this radiator on reinforced internal stud walls using standard brackets, provided they are fixed securely into the timber framework.
Can the modular width of the Oscar 1446mm range be adjusted on-site to fit specific alcove dimensions?
The Oscar range utilizes a sectional assembly method where 80mm wide elements are joined with nipples and gaskets. While it is technically possible to alter the width, it is strongly advised to order the radiator factory-assembled to your exact requirements (e.g., 5 sections for 420mm width, 10 sections for 820mm width). On-site alteration requires a specialized torque tool and fresh gaskets to ensure the high-pressure seal is maintained. Incorrect re-assembly can lead to leaks which are not covered under the 10-year guarantee.
Why is the water pH level critical for the 1446mm Aluminium Oscar radiator and what inhibitor should be used?
Aluminium is chemically sensitive to electrolytic corrosion if the heating water is too acidic or alkaline. For the Oscar 1446mm, you must maintain a neutral pH between 7.0 and 8.0. You must use a high-quality corrosion inhibitor specifically formulated for mixed-metal systems (containing aluminium, copper, and steel). Using a standard inhibitor designed only for steel radiators can cause the pH to rise, leading to hydrogen gas generation, internal pitting, and eventual pinhole failure of the aluminium extrusion.
Does the 1446mm height require a flow diverter or baffle to ensure the water circulates to the top of the radiator?
For tall vertical radiators like the 1446mm Oscar, ensuring full water circulation is vital. If connected via Bottom Opposite Ends (BOE)
How does the thermal mass of the Oscar 1446mm compare to a cast iron radiator of the same height?
The Oscar 1446mm has a very low thermal mass and low water content compared to a 1446mm cast iron equivalent. This means it holds less heat energy within the metal itself. Technically, this makes the Oscar highly responsive; it heats up and cools down in minutes rather than hours. This allows for precise control via a smart thermostat, reducing energy wastage by preventing the room from continuing to heat up after the system has been switched off, a common efficiency issue with high-mass cast iron units.
Are the Oscar 1446mm radiators available in custom finishes suitable for high-humidity environments like bathrooms?
Yes, the Oscar 1446mm can be specified in over 25 RAL colours and special finishes. The paint application process involves a high-durability epoxy-polyester powder coat which is baked on. This creates a sealed, non-porous finish that is technically resistant to humidity and condensation, making the radiator suitable for bathrooms. However, you must ensure that any chips or scratches are repaired immediately, as exposed aluminium can oxidize (corrode) in damp environments, unlike the inert powder coating.
What are the connection specifications for the Oscar 1446mm and do I need 3/4 inch valves for higher flow rates?
The Oscar 1446mm comes with standard 1/2 inch BSP connections. Despite the high output potential of larger 1446mm banks, standard 1/2 inch valves provide sufficient flow rate for domestic central heating circuits. Using 3/4 inch valves is generally unnecessary unless you have a specialized high-flow gravity system. For a neat installation, Corner Valves are often recommended if pipes emerge from the wall, as they orient the valve head inwards, keeping the profile of the radiator streamlined.
Does the 10-Year Guarantee cover the Oscar 1446mm radiator if it is installed on a district heating system with high pressure?
The Oscar 1446mm is manufactured from extruded aluminium, which naturally withstands higher pressures than steel panel radiators. It typically has a maximum operating pressure of 16 Bar. This makes it technically compatible with high-pressure district heating systems or commercial loops often found in apartments. The 10-Year Guarantee remains valid for these high-pressure installations, provided the water quality and inhibitor levels meet the manufacturer's strict chemical requirements.