Oscar 1246 Products
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Frequently Asked Questions
How does the 1246mm height of this Oscar Aluminium model specifically benefit rooms with limited wall space like kitchens or bathrooms?
The 1246mm height is a technical "mid-height" vertical solution. Unlike full-height 1.8m or 2m radiators which might be too imposing, or standard 600mm panels which require significant horizontal width, the 1246mm Oscar optimizes the vertical wall area typically found between kitchen cabinets or above wainscoting. This allows you to generate high heat output (e.g., over 4000 BTUs from a 500mm wide unit) without occupying valuable floor space or obstructing window views, effectively solving the problem of heating small but high-heat-loss rooms.
What is the precise heat output per section for the Oscar 1246mm model and how does this affect sizing calculations?
Each individual section of the Oscar 1246mm radiator generates a specific heat output of 744 BTUs (218 Watts) at Delta T50. To solve the sizing problem for your room, you must divide your total room heat loss requirement by this figure. For example, if your room requires 4400 BTUs, you would technically need a 6-section model (approx 4463 BTUs). This modular thermal characteristic ensures you can size the radiator to within 80mm of the exact requirement, preventing energy wastage from oversizing.
Does the 116mm depth of the Oscar 1246mm radiator include the wall brackets in its technical specification?
No, the 116mm specification refers strictly to the depth of the aluminium radiator sections themselves. When calculating the total projection into the room
Why is the Oscar 1246mm Aluminium radiator technically superior to steel when used with low temperature heat pumps?
The Oscar 1246mm utilizes extruded aluminium which has a thermal conductivity approximately 4 to 5 times higher than steel. In a low temperature system (e.g., heat pump running at 45
What are the specific water chemistry requirements to prevent electrolytic corrosion in the Oscar 1246mm aluminium sections?
Aluminium is an amphoteric metal, meaning it reacts to both acidic and alkaline environments. Technically, you must maintain the heating system water pH between 7.0 and 8.0. You must use a specific pH-neutral corrosion inhibitor designed for mixed-metal systems. If the pH rises above 8.5 (often caused by standard inhibitors designed for steel), it will corrode the aluminium, generating hydrogen gas and causing "pinhole" leaks. Failure to strictly follow this chemical regime voids the 10-year guarantee.
Can the Oscar 1246mm radiator be top-fed if my existing pipework drops from the ceiling?
While the Oscar 1246mm has top and bottom connections, aluminium radiators are technically designed to be fed from the bottom to ensure the correct internal flow pattern. Top-feeding an aluminium radiator can often lead to short-circuiting, where the hot water flows straight across the top header and out, leaving the bottom of the radiator cold. If you must top-feed to solve a pipework problem, you may need to install a specific internal flow diverter or "baffle" to force the water down the first section, ensuring the entire unit heats up evenly.
Is the powder coat finish on the Oscar 1246mm radiator resistant to the high humidity found in drying rooms or bathrooms?
Yes, the Oscar 1246mm is finished with an industrial-grade polyester powder coat (standard RAL 9010 or custom). This process involves electrostatic spraying followed by high-temperature curing, creating a sealed, non-porous surface. This finish is technically resistant to moisture and does not rust like mild steel. However, if the coating is chipped or deeply scratched, the underlying aluminium can oxidize, so it is critical to touch up any damage immediately to maintain this humidity resistance in wet areas.
How does the low thermal mass of the Oscar 1246mm radiator contribute to the overall energy efficiency rating of the home?
Thermal mass refers to how much heat energy the radiator material absorbs before it starts heating the room. The Oscar 1246mm has very low thermal mass compared to cast iron or steel. This means it has almost zero "thermal lag." When your smart thermostat calls for heat, the Oscar emits warmth almost instantly. Conversely, when the target temperature is reached, it cools down quickly, preventing the room from overheating. This precise control reduces the total boiler run-time, directly lowering fuel consumption and improving the home's energy efficiency rating.
What is the maximum operating pressure for the Oscar 1246mm Sectional Aluminium Radiator?
The Oscar 1246mm range is technically tested to high pressures, typically with a maximum operating pressure of 10 to 16 bar (depending on the specific batch certification, but always well above domestic limits). This high-pressure tolerance is due to the extrusion manufacturing process which creates seamless vertical columns. This makes the Oscar 1246mm suitable not only for standard open-vented or sealed domestic systems (usually 1-2 bar) but also for high-pressure district heating systems or commercial HVAC installations where steel panel radiators might fail.
Are the joining nipples and gaskets reusable if I need to disassemble the Oscar 1246mm radiator to move it?
Technically, no. The sections are joined using steel nipples and fibre or silicone gaskets under high torque. Over time, the gaskets compress and harden to form the seal. If you disassemble the radiator to move it to a new room or paint behind it, the old gaskets will have lost their elasticity and will likely leak upon reassembly. You must solve this by purchasing a fresh set of gaskets and potentially new nipples (if the threads are damaged during removal) to ensure the reassembled unit remains watertight and safe.