The Pietra Products
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Frequently Asked Questions
What is the difference in heat output between the Chrome and Anthracite Pietra models?
There is a significant technical difference in heat emission between the two finishes. The Anthracite models offer a higher heat output due to the nature of the powder coating; for instance, the 1100mm Anthracite model produces 2281 BTUs (669 Watts), whereas the equivalent Chrome model outputs 1471 BTUs (431 Watts) at Delta T50. You should prioritize the Anthracite finish if maximizing room heating efficiency is your primary goal.
Can The Pietra towel rail be installed with the horizontal bars facing either left or right?
Yes, The Pietra features a reversible design, making it a versatile technical solution for bathrooms with specific layout constraints. During installation, you can mount the radiator so the open ended bars face either left or right, allowing for easier access to slide towels onto the rail from the most convenient side for your space.
What are the specific wall projection dimensions for installation planning?
The Pietra has a depth of 115mm from the wall to the front of the rail when installed. The adjustable brackets allow for a wall to pipe center distance of between 73mm and 87mm. You must account for this total projection of approximately 108mm to 122mm to ensure the rail does not obstruct shower doors or walkways in compact bathrooms.
Is The Pietra range compatible with dual fuel or electric only setups?
Yes, The Pietra is fully compatible with dual fuel and electric only configurations. For a dual fuel installation, you will need a T-piece and a compatible electric heating element, allowing you to heat the rail electrically in summer without running the central heating. Ensure the element wattage matches the liquid capacity of the specific rail size you select.
What type of valves are required for The Pietra designer radiator?
The Pietra requires standard 15mm radiator valves, which are sold separately. Since the connection points are located on the vertical collector bars, you typically need angled valves if your pipes emerge from the wall, or straight valves if your pipes come up from the floor. Thermostatic valves are recommended to control the temperature and improve energy efficiency.
How do I maintain the finish on the Chrome and Anthracite models?
To technically preserve the 10 year guarantee and finish quality, avoid using abrasive scrubbers or acidic chemical cleaners which can strip the chrome plating or scratch the anthracite coating. The correct problem solving maintenance is to clean the rail regularly with a soft cloth and warm soapy water, then dry it immediately to prevent water spots and potential corrosion.
Does The Pietra come with a manufacturer warranty?
Yes, The Pietra designer towel rail is backed by a comprehensive 10 Year Guarantee. This warranty covers manufacturing defects such as leaks, weld failures, and finish issues. This long coverage period reflects the high quality mild steel construction and ensures the product will withstand the humid conditions of a bathroom environment for a decade or more.
How do I bleed the radiator if it has cold spots at the top?
If the top of your Pietra rail is cold while the bottom is hot, trapped air is preventing hot water circulation. To solve this, locate the air vent bleed screw at the top of the vertical collector. With the heating system turned off and cool, use a radiator key to slightly open the screw until air hisses out and water begins to trickle, then close it tightly.
What are the pipe centers for installing The Pietra?
The pipe centers for The Pietra depend on the vertical collector width, which is typically 50mm. However, for accurate installation, we strongly recommend receiving the product and measuring the exact centers with your chosen valves attached before laying any underfloor pipework. This ensures a precise fit and avoids costly adjustments to tiled floors or walls later.
Is the mild steel construction suitable for all heating systems?
The Pietra is manufactured from high quality mild steel, which is compatible with all standard UK central heating systems, including open vented and sealed systems. However, it is technically vital to ensure your system contains a chemical inhibitor. This prevents internal corrosion and sludge build up, which can damage the steel and reduce the efficiency of the boiler and pump.