How do you determine the heat requirement of a detached house?

Due to rising energy prices, the lowest possible heat demand in a single-family home is of great relevance. The following article explains why insulation is so important on this topic and how you can determine the heat demand of your home.

Insulation - the basis for efficiency

Good insulation is the indispensable basis for efficient heat demand; it is at least as important as the heater. If the energy produced is stored in the best possible way and can not escape through any weak points, the heat requirement will shrink and you will be financially relieved.

The weaknesses in almost every house are the same: not only the outer wall, but also areas such as the windows, the front door and the roof are significant weak points, if they are not sufficiently insulated. The investment in a good insulation usually pays off after a few years - when you read on you will understand why.

How do you determine the heat requirement of a detached house?: requirement

The determination of the heat demand

If you want to determine the energy requirements of your single-family home, the strength of the insulation is the first basis. The insulation is divided into four stages:

  • no insulation
  • partially existing insulation
  • Thermal insulation according to the Thermal Insulation Ordinance 1995
  • Insulation according to the Energy Saving Ordinance (Low Energy House)

In general, you can easily assign your house: If it meets any of the above regulations, only the first two stages come into question, with "no insulation" is very rare nowadays, since here an immense heat requirement for horrendous operating costs.

Once you have determined the possible thickness of the insulation, a second factor is added: the performance of your heating system. In kilowatt-hours (kWh), it should have the lowest possible value. While 8 - 10 kWh on 120 square meters are a good value, values ​​starting at 15 kWh are a problem.
The electrical power of your heating can usually be found on a certificate on the boiler.

Reduce the heat requirement effectively

Now that you know the factors that determine the heat demand of your house, namely insulation, heating and size (or volume), you can easily guess how to reduce your heat demand. In addition to the already mentioned insulation, it is of immense importance to use efficient heating.

It should necessarily be adapted to the size of your family home. Many homeowners make the mistake and buy too low a heater that can not meet the heat demand of the house. The result: If energy escapes (usually when ventilating), the recovery of the room temperature takes too long. The result of a too large heating is clear: The energy consumption is too high and exceeds the energy requirements of the family house.

Tips & Tricks

Let the heat demand of your house be determined professionally (for example by TÜV) before deciding on a new heating or insulation. The more customized the components are to your home, the higher the efficiency.

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