LOW TEMPERATURE HEATING SYSTEM (LTH)

We all heat our homes with a boiler and radiators. But there are many alternatives to heat a home which significantly improve the comfort of living in your home. Here you can read all about low-temperature heating system, the most comfortable and energy efficient way of heating.

Heating

In a building, there can be no lack of heating. The temperature in winter can be up to -20 ° C, and then it is nice to have heating system in the house. We know a variety of ways in order to heat a building. For example, we use traditional heating system as a radiator that is heated by a standard boiler (HR 107). Thirty years ago, most homes were not isolated. Due to the improved insulation of residential households, we now use less gas. On average, a house now consumes between 1000 and 1400 m³ gas a year.

Low temperature heating

Low temperature heating system (LTH) supply temperature between 50 ° C and a maximum of 55 ° C. This ensures the temperature from an average of 40 ° C. In practice, the system is also called a distinction which is made by high-temperature, mid-temperature, low temperature and very low temperature heating systems. The flow temperatures are at a maximum of 90, 70, 55 and 35 ° C, respectively.

With low temperature heating system, there are often large radiators used as floor or wall heating in order to heat the rooms, or LT radiators, convectors or LT-air heating. Low temperature heating is a very attractive alternative to the standard high-temperature heating which today is still widely used. In countries such as Sweden, Denmark and Switzerland, it is compulsory to use low-temperature heating in new buildings.

The temperature at the floor is higher than at the ceiling. The temperature differences between the floor and ceiling should not be too large because it is unpleasant: the temperature gradient must not exceed the comfort zone by 3.5 ° C. When the temperature gradient is above 3.5 ° C, it will be uncomfortable. If you apply a low temperature underfloor heating you will create the most comfortable environment.

Why low temperature heating

Low temperature heating has a number of great benefits. Supply boilers which are combined with low temperature heating give higher returns. The use of renewable energy sources like solar and geothermal energy comes within reach in the application of low-temperature heating.

For the owner of the low temperature heating, in addition to a lower energy consumption, it also provides a better indoor air quality. The application of low temperature heating has a positive effect on several aspects associated with the indoor environment and the perception of comfort. A few of these aspects are:

  • heat
  • temperature distribution

Explanation of the above-mentioned advantages:

Radiant heat

Low temperature heating system is widely used in combination with floor or wall heating. This form of heating system heats the room by radiation. This is an enjoyable experience.

Temperature distribution

With low temperature heating, it is required large radiators on the floor or wall. Because these large elements, the air is heated, you get an even temperature distribution. So you have less air circulation. This also promotes temperature comfort in the room.

Heat sinks and heat sources for low temperature heating

As already mentioned several times in the article, there are several devices needed for the low heating systems. Find out all the devices at a glance:

Those heating devices described above have to be heated by a heat source. There are also a number of options which are possible. Here are the most used and well-known sources of heat at a glance:

  • High-efficiency boiler
  • Solar Heating
  • Heat

The above radiators are all combined with the below described heating sources. In order to enable the energy-saving use of heat pumps, there is even a low-temperature heating condition.

It is common that a solar heating system which is used as a solar water heaters produces too little heat compared with the cold temperature outside in the winter. In this case, the hot water does not generate enough heat for the need. The temperature of hot water should, for health reasons, be at least 60 ° C. Therefore, it is possible to use an installation which based on the hot water in the colder months. So you can always have warm shower.

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