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LavaTherm Thermostatic Radiator Valve - Corner - Anthracite

LavaTherm Thermostatic Radiator Valve - Corner - Anthracite

Upgrade your home heating with the LavaTherm Radiator Valve Twin Pack — a complete TRV + Lockshiel...

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Product Information

Full details

For homeowners looking to improve heating efficiency and comfort, the LavaTherm Radiator Valve Twin Pack offers an automated solution for managing individual radiator temperatures. This pack provides a complete TRV and Lockshield valve set for easy installation on standard 15 mm UK systems, ensuring balanced heating throughout your home. A potential caveat is that professional installation may be required for optimal system performance and safety.

All features

ColourGrey
Model Part NumberLVTRVAN-C
BrandLavaTherm

Extended Product Information

FAQs

What is a TRV and Lockshield valve twin pack?

It's a set containing one Thermostatic Radiator Valve (TRV) to control radiator heat output based on room temperature, and one Lockshield valve to balance the heating system's water flow. This provides a complete solution for one radiator.

Do I need to replace both valves on a radiator?

Yes, for optimal control and system balance, both the inlet (TRV) and outlet (Lockshield) valves on a radiator should be functional. This twin pack provides both necessary valves.

Will this fit my radiators?

The LavaTherm twin pack is designed for standard 15 mm UK central heating pipework, which is the most common size. It is compatible with most radiators and boilers.

How do I set the temperature on the TRV?

The TRV head typically has a dial with numbers (e.g., 1 to 5). Lower numbers correspond to lower temperatures, and higher numbers to higher temperatures. A setting of '3' is often a good starting point for average room temperatures (around 20°C).

How do I balance the system with the Lockshield valve?

Balancing involves adjusting the Lockshield valve to ensure all radiators heat up evenly. This typically requires the heating to be on and involves gradually opening or closing the Lockshield valve while monitoring radiator temperatures.

Can I install these myself?

Basic plumbing knowledge is required. If you are not experienced with central heating systems, it is highly recommended to have a qualified professional install the valves to ensure proper function and prevent leaks.

What is the difference between this and a manual radiator valve?

A manual valve requires you to turn it up or down by hand. A TRV is automatic; it senses the room temperature and adjusts the water flow to maintain your set temperature, saving energy and improving comfort.

Troubleshooting

Radiator not heating up at all

Ensure the TRV head is not set to 0 or the frost protection setting. Check that the heating system is on and the boiler is firing. Verify the Lockshield valve is open.

Radiator is too hot and cannot be turned down

Check that the TRV head is correctly attached and properly set to a lower temperature. If the problem persists, the TRV may be faulty and require replacement.

Radiator is lukewarm or only partially heating

This usually indicates a system balancing issue. Adjust the Lockshield valve to allow more return flow. Consult system balancing guides for detailed instructions. Air in the radiator can also cause this; try bleeding the radiator.

Valve is leaking

Check that all fittings are secure. If leaking from the valve body or gland, the valve may need tightening or replacement. If leaking from the pipe connections, the compression fittings may need adjustment.

TRV head is loose or spins freely

The TRV head may have come loose from the valve body. Ensure it is securely attached according to the manufacturer's instructions. If damaged, the head may need replacement.

Pros and Cons

Pros

  • Improves home heating comfort with automatic temperature regulation.
  • Reduces energy waste and potentially lowers heating bills.
  • Ensures even heat distribution, eliminating hot and cold spots.
  • Designed for straightforward installation on standard UK pipework.
  • Available in various finishes to match interior design.
  • Provides a complete set (TRV + Lockshield) for a single radiator.

Cons

  • Requires basic plumbing knowledge or professional installation.
  • TRV settings may need occasional adjustment for optimal comfort.
  • Not suitable for non-standard pipe sizes or specialized heating systems.
  • Initial setup might involve bleeding radiators, which can be messy.
  • Lockshield valve requires proper balancing for system efficiency.

Setup, Compatibility & Care

Compatibility:

This twin pack is specifically designed for standard 15 mm UK central heating pipework. It is compatible with most domestic radiators and boilers. Ensure your existing radiator has 15 mm pipe connections for proper fitment.

Installation:

  1. Isolation: Turn off your central heating system and drain down the radiator to be worked on.
  2. Removal: Unscrew the existing TRV and Lockshield valves.
  3. TRV Installation: Fit the new TRV to the radiator inlet valve, ensuring the correct orientation.
  4. Lockshield Installation: Fit the new Lockshield valve to the radiator outlet valve.
  5. System Refill: Refill and bleed the central heating system to remove any air.
  6. Testing: Turn the heating back on and check for leaks. Adjust the TRV to your desired temperature setting and balance the Lockshield valve if necessary.

*Note: If you are not comfortable with plumbing, it is recommended to hire a qualified professional for installation.*

Care:

To maintain performance, periodically check for leaks. Clean the valves with a soft, damp cloth. Avoid using abrasive cleaning agents that could damage the finish. The TRV head can usually be removed for dusting or cleaning around the valve body.

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