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How to maximise energy efficiency?

How to maximise energy efficiency?

The UK Government’s energy-saving advice has put the spotlight on several ways homeowners can cut fuel costs and make their home more energy-efficient. Of all the measures, Thermostatic Radiator Valves (TRVs) and ensuring heating systems are ‘balanced’ are some of the ‘lowest hanging fruit’ that can help homeowners reduce their heating costs. Gareth Ash, Marketing Communications Manager at Danfoss, explains how fitting modern TRVs provides a simple way for homeowners to achieve increased energy savings.

Getting the right balance

As well as installing modern TRVs, correct balancing is widely recognised as one of the keys to ensuring a heating system works as per the design specification. As most merchant counter staff know, hydronic balancing is the process of optimising the flow of water in a hydronic heating (or cooling) system by balancing the system pressure. Balancing ensures that the water flows equally to individual radiators and so prevents cold or hot spots occurring, or radiators not heating at all. As well as the discomfort factor, the efficiency of an unbalanced system is significantly reduced, increasing energy consumption and fuel bills for householders.

In order to achieve maximum heating efficiency common issues such as cold radiators also need to be addressed. To tackle this, you might advise putting the system pump onto a higher speed or putting the boiler thermostat onto a higher temperature setting. Although this might seem like a quick fix compared with hydronic balancing, it may well lead to increased noise in the system, overheating and will most certainly increase the system’s energy consumption. 

Advice for making balancing quick and easy

Installers may well turn to counter staff for advice on balancing and Danfoss has come up with a simple answer – The Danfoss RAS-B2 Dynamic Valve, a 2-in-1 temperature control and automatic balancing valve. This TRV makes it quick and easy to ensure that the heating system is always perfectly balanced. Once mounted and in conjunction with the pre-setting tool on the Danfoss Installer App, installers can simply calculate the setting for the valve by entering the desired flow and return temperatures for the system as well as the size and type of radiator, before setting the valve to the number indicated in the app. The valves will automatically perform the balancing of the entire system right away. The distribution of heat is even and to the pre-set levels, regardless of partial loads and weather conditions, thanks to a pressure independent regulator inside the RAS-B2. As well as improving condensing boiler efficiency by ensuring a lower return temperature, this innovative solution also reduces customer complaints about under-heated or over-heated rooms. 

Studies suggest that precise room temperature room control and correct balancing of the heating system could offer energy savings of up to 36% (when compared with constantly open manual radiator valves). On top of this major selling point, the installation of TRVs is typically paid back in less than 18 months (maybe sooner given the current high energy costs) and occupants gain improved indoor comfort with the desired temperature in all rooms.

For more information visit Radiator sensors, thermostats and thermostatic radiator valves, radiator packs, dynamic valve | Danfoss or watch this video https://youtu.be/cPam9DXk800