Renewable Energy Today

Thermostatic Radiator Valves (TRVs) have proven to be a hit seller in the UK in recent years and as such become an important part in fighting global warming. All central heating radiators must be fitted with a TRV, following the amendment to the Building Regulations introduced in 2002. The amendment to the Building Regulations requires TRVs to be fitted on all newly installed domestic radiators. Such new requirement has clearly help the TRV market more than double in volume (from around 3.7 million units sold in 1995 to more than 7.5 million in 2003).

With the high profile of global warming in the news, the UK government has set a stretching target for reducing carbon emissions. Along with the Kyoto protocol, the government intends to lead the way within the developed world in terms of reducing the UK’s impact on the environment. The protocol signed by the UK in 1997 sets a target of reducing the baseline emissions of six key greenhouse gases by 12.5% compared to 1990 levels. The UK government has gone further and set a more challenging target of 20% compared to the 1990 baseline, with a long term goal of reducing carbon dioxide emissions by 60% by 2050.

According to Building regulations Part L, central heating engineers must install only A- or B-rated central heating components (such as condensing boilers) that are environmentally friendly and deliver high energy efficiency performance. At current levels, around 400 million tonnes of carbon dioxide emissions are released into the atmosphere every year purely as a result of heating our homes. The total emissions level of the domestic sector is even higher and stands on 535 million tonnes per year.

TRVs help reduce wasted heat by allowing the user to set the desired temperature in each room separately. This way the user doesn’t need to heat unused rooms just to get the right temperature in rooms that are used. TRV manufacturers have made the kits not only technically effective but also visually pleasing. Most new units now have polished stainless steel finish which looks nice and is easy to clean.

Modern TRVs use a system of liquid filled controls. Unlike the wax-filled valves that were used in the past, the liquid is more sensitive and as such much quicker to react to changes in ambient temperature. This feature makes the liquid filled Thermostatic Radiator Valve better at adjusting the room temperature when there are changes (such as opening the front door).

Installing a TRV is a major step in reducing wasted heating energy. Nevertheless, it would be a wasted effort if the homeowner (or tenant) is not properly educated on how to use the TRVs effectively to save them money and reduce their carbon footprint. It is estimated that by installing TRVs and using them effectively a home owner can reduce their heating costs by up to 17%.

Another industry that has grown under the TRV umbrella has been the towel warmer. Closely linked to the TRV technology, towel rails have grown to be a 33 million industry last year, with an estimated volume for this year of around 1 million units.