Sloane 450 Cast Iron Radiator Products
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Frequently Asked Questions
How do I accurately calculate the required number of sections for the Sloane 450mm High cast iron radiator to ensure my room is heated efficiently based on the specific BTU output per section?
To calculate the correct size you must first determine the heat loss of your room in BTUs. The Sloane 450mm High model has a specific output of approximately 186 BTUs per section at Delta T 50C. You should divide your total room heating requirement by 186 to find the exact number of sections needed. For example if your room requires 2976 BTUs you would need exactly a 16 section radiator. Always round up to the nearest whole section to ensure you have adequate heating capacity especially for older properties with poorer insulation.
What are the precise measurements I need to use for the pipe centers from the wall when installing the Sloane 450mm radiator to ensure the pipework aligns perfectly with the radiator connections?
The Sloane 450mm High radiator has a depth of 145mm. To find the correct pipe center measurement from the finished wall you typically take half of the radiator depth which is 72.5mm and add the necessary clearance distance from the wall which is usually around 20mm to 30mm depending on your skirting board thickness. Therefore your pipes should technically be installed so the centers are approximately 95mm to 105mm away from the finished wall surface to allow the radiator to sit correctly without touching the masonry.
Does the smooth column design of the Paladin Sloane cast iron radiator offer any technical advantages regarding maintenance and heat distribution compared to ornate floral models?
Yes the Sloane 450mm features a smooth contemporary column design which technically makes it much easier to clean and maintain than ornate models like the Shaftsbury. Dust does not get trapped in intricate castings which maximizes the surface area available for convective air flow. This smooth profile ensures efficient heat transfer into the room and allows for easier repainting or touch ups in the future as there are no complex patterns to work around when applying radiator paint or finishes.
How does the Delta T 50C rating listed on the product page affect the performance of the Sloane 450mm radiator if I am connecting it to a low temperature renewable heating system like an air source heat pump?
The listed heat outputs such as 4092 BTUs for the 22 section model are calculated at Delta T 50C which assumes a boiler water temperature of roughly 75C. Renewable systems like heat pumps operate at lower temperatures typically Delta T 30C. If you use the Sloane on such a system the actual heat output will be significantly lower than listed. You must solve this by technically oversizing the radiator effectively ordering a longer model with more sections to compensate for the cooler water and achieve the same room temperature.
What is the total installation width I must allow for the Sloane 450mm cast iron radiator including the valves and how does this impact fitting it into a tight alcove space?
The widths listed on the website such as 810mm for a 10 section model refer strictly to the cast iron body. For a complete installation you must add approximately 90mm to the total length to accommodate the radiator valves on the flow and return inlets. This means a 10 section model will physically occupy roughly 900mm of wall space. If you are fitting this into a tight alcove you must measure the available space minus 90mm to determine the maximum number of sections you can technically fit.
Given the weight of the Sloane 450mm radiator which can exceed 100kg for larger sizes do I need to install specific wall stays for safety even though the radiator sits on floor standing feet?
Yes installing wall stays is a critical safety requirement for all cast iron radiators including the Sloane 450mm. While the radiator bears its weight on its integral feet it is very heavy and narrow which creates a tipping hazard if it is knocked or pulled. You technically need to install at least one wall stay for radiators up to 10 sections and two stays for longer models. These stays anchor the top of the radiator to the structural wall behind ensuring it remains stable and upright.
What is the difference between buying the Sloane radiator in a Primer finish versus a Heritage Metallic finish and what technical steps are required if I choose the Primer option?
The Primer finish is a base coat only intended to protect the iron from rust during transit and storage. It is not a decorative finish. If you purchase the Sloane in Primer you generally must apply a top coat of radiator paint or metal paint on site to seal it and provide the desired color. The Heritage Metallic finishes are professionally applied factory coatings that are fully cured and ready for immediate installation. Choosing a factory finish saves significant labor time on site and ensures a uniform durable coating.
Can I install the Sloane 450mm cast iron radiator on a standard 15mm copper pipe system or do I need to upgrade my pipework to larger diameter pipes for better flow rates?
You can technically install the Sloane 450mm radiator on standard 15mm copper or plastic pipework found in most UK homes. The connections on the radiator are 1 half inch BSP which is compatible with standard radiator valves. However because cast iron radiators hold a larger volume of water than steel panel radiators it is important to ensure your central heating pump has sufficient head pressure to circulate the water effectively especially if you are adding multiple large cast iron radiators to an existing system.
How do I bleed air from the Sloane 450mm radiator considering its column structure and does trapped air significantly reduce the heating efficiency?
Trapped air prevents hot water from filling the top of the radiator sections which significantly reduces the heat output and can cause cold spots. To solve this you must use the bleed valve located at the top of the radiator usually on the end section. With the heating system turned off and cool use a radiator key to slightly open the valve until all air hisses out and a steady stream of water appears. Because the Sloane holds a lot of water you may need to repressurize your boiler system after bleeding.
Is it possible to adjust the length of the Sloane 450mm radiator by adding or removing sections on site if I find I have ordered the wrong size?
While the Sloane is a sectional radiator assembled from individual castings adjusting the length on site is technically very difficult and not recommended for DIYers. The sections are joined with threaded nipples and gaskets that require a specific high torque radiator tool to tighten correctly to prevent leaks. Breaking the seals to remove sections can damage the gaskets. It is far better to measure accurately and order the exact number of sections required from the factory to ensure a watertight and covered product.