Nevah Horizontal Single Products
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Frequently Asked Questions
How does the horizontal oval tube orientation affect the convective airflow compared to vertical models?
The horizontal arrangement of the oval tubes on the Nevah allows air to rise through the gaps across a wider span which creates a gentle and wide spread of warm air convection making it highly effective for placing under windows to counteract cold downdraughts
What is the total wall projection I should allow for the Nevah single horizontal radiator?
The Nevah single horizontal radiator has a depth of 88mm and standard wall brackets typically add around 25mm to 35mm meaning the total projection from the wall will be approximately 113mm to 123mm which is relatively slim for a column style radiator
Why is the 295mm height option particularly significant for conservatory or attic installations?
The 295mm low level height is specifically designed to fit on dwarf walls found in conservatories or the short knee walls in attic conversions where standard 600mm high radiators would be too tall to fit under the glazing or eaves
Do I need to calculate a different heat output factor if my boiler runs at a lower temperature?
Yes the listed BTU outputs are based on a Delta T 50 standard so if you are using a modern condensing boiler or heat pump with lower flow temperatures you must use a correction factor to calculate the reduced output typically referred to as Delta T 30 or Delta T 40
Is the mild steel material of the Nevah suitable for direct hot water systems?
No mild steel radiators like the Nevah are designed for closed loop central heating systems only because the oxygenated water in direct open systems would cause rapid internal corrosion and rust eventually leading to leaks and invalidating the warranty
How do I correctly measure the pipe centres for installing this horizontal radiator?
For the Nevah horizontal radiator you need to take the total width of the unit and add the valve allowance which is generally around 80mm to 90mm total for both sides to determine the exact distance required between your copper floor pipes for a tension free connection
What advantage does the powder coated finish offer over standard wet paint?
The electrostatic powder coating process used on the White and Anthracite Nevah models creates a thermally bonded finish that is much harder and more resistant to heat cycling and physical impact than wet paint ensuring the radiator retains its aesthetic appeal for years
Can I use standard 15mm pipework with the Nevah horizontal radiator?
Yes the Nevah features standard 1/2 inch BSP inlet and outlet connections which are perfectly compatible with the standard 15mm copper or plastic pipework found in most UK homes without the need for any special adapters
Why is a chemical inhibitor necessary for the long term health of this radiator?
Adding a chemical inhibitor to your heating system fluid creates a protective passive layer on the inside of the mild steel radiator which prevents the water from reacting with the metal to form magnetite sludge and hydrogen gas preserving the system efficiency
Does the 10 year guarantee cover accidental damage during installation?
The 10 year guarantee strictly covers manufacturing defects such as leaks from welds or material failure so any damage caused by dropping the radiator or over tightening the valve tails during installation would not be covered under the manufacturer warranty