Envy Stainless Steel Expansion Header / F&e Tank - 25 Litres
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B&QB&Q - Stainless Steel Expansion Header / F&e Tank 25 Litres
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Product Information
Full details
This 25-litre stainless steel expansion and feed & expansion (F&E) tank from Envy is designed for central heating systems, offering superior corrosion resistance and durability compared to plastic alternatives, especially in systems with uncontrolled heat sources. Its primary benefit is preventing plastic tanks from melting or warping under high temperatures. A potential consideration is its fixed capacity and the need for proper installation to ensure optimal performance.
All features
| Model Part Number | TANK25L |
|---|---|
| Brand | Envy |
Extended Product Information
FAQs
What is the main advantage of a stainless steel header tank over plastic?
Stainless steel tanks are not susceptible to melting or warping from prolonged exposure to water temperatures exceeding 100°C, which can occur with uncontrolled heat sources like solid fuel boilers. Plastic tanks can fail under such conditions.
What is the maximum heating system size this tank can support?
This 25-litre tank is designed to support a maximum system size of 351 litres.
Does the tank come with insulation?
Yes, it includes a 25mm black foam insulation jacket to minimize heat loss and prevent condensation.
How does the tank maintain the correct water level?
It features an integrated float valve assembly with a red ball float that automatically controls and replenishes the water level as needed.
Can this tank be used for both expansion and feed purposes?
Yes, it is designed to function as both an expansion tank and a feed & expansion (F&E) tank, offering versatile installation options.
How do I clean the stainless steel tank?
Clean the stainless steel exterior with a damp cloth. Avoid using abrasive cleaners or scouring pads that could scratch the surface.
What are the dimensions of the tank?
The tank has a height of 300mm and a diameter of 455mm.
Troubleshooting
Water level in the tank is too high or too low.
Check the float valve mechanism for obstructions or damage. Adjust the float arm if necessary to ensure correct water level. Ensure the tank is installed level.
Tank is not expanding or contracting correctly with system temperature changes.
Verify that the tank is correctly plumbed into the system as either an expansion or F&E tank. Ensure there are no blockages in the relevant pipework.
Condensation forming on the exterior of the tank.
Ensure the foam insulation jacket is intact and properly fitted. Check for any leaks from connections that could be contributing to moisture.
Noise from the float valve.
This is often normal operation. If the noise is excessive or constant, check for debris in the valve seat or consider a valve with quieter operation.
Pros and Cons
Pros
- Durable stainless steel construction offers superior longevity and corrosion resistance.
- Safe to use with high-temperature systems (e.g., solid fuel boilers) where plastic tanks might fail.
- Includes insulation to improve system efficiency by reducing heat loss and condensation.
- Automatic water level control via the included float valve simplifies maintenance.
- Versatile design functions as both an expansion and an F&E tank.
Cons
- Fixed 25-litre capacity may not suit all system sizes.
- Requires proper installation to function correctly and safely.
- Stainless steel, while durable, may be heavier than plastic alternatives.
- Requires specific connection points within the heating system.
Setup, Compatibility & Care
Setup: Install the tank in a suitable location within your central heating system according to plumbing best practices. Ensure all connections are secure. The included float valve assembly should be connected to the water supply for automatic top-up. Refer to the system's design specifications for optimal placement.
Compatibility: This tank is designed for use in central heating systems and is compatible with systems having a maximum size of 351 litres. It is particularly recommended for systems with uncontrolled heat sources like solid fuel boilers.
Care: Periodically check the float valve to ensure it operates freely and maintains the correct water level. Inspect the insulation jacket for any signs of damage. The stainless steel body requires minimal maintenance; a simple wipe-down with a damp cloth is usually sufficient. Avoid abrasive cleaners that could scratch the surface.