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Buy an electric heater – Determine the right heating output with TECHNOTHERM

Would you like to buy an electric heater but are not yet sure what heating output you need for your rooms? With the TECHNOTHERM Heat Demand Calculator, you can determine your room’s heat demand in just a few steps—based on the information you provide about the building and the specific room characteristics. This gives you guidance for selecting an appropriately sized electric heater.
Calculate heat demand now

Calculate your electric heater’s heating output in 3 steps

A room’s heat demand is influenced by various factors. The TECHNOTHERM Heat Demand Calculator takes your details about the building and the desired room into account and uses them to determine the required heating output.

1. Building details

Select the building type, year of construction, location and thermal insulation. This information forms the basis for calculating your heat demand.

2. Room details

Add the room area, external walls, windows and desired room temperature. This information takes your room’s individual characteristics into account.

3. Calculate heat demand

The TECHNOTHERM Heat Demand Calculator evaluates your information. You will receive the required heating output as guidance for your electric heater.
Calculate heat demand now

Heat Demand Calculator

In just a few steps you can determine the heat demand of your room – as a guideline for choosing a suitable electric heater. Simplified method based on DIN 4701/83.

  1. 1 Building
  2. 2 Room

Building details

Six questions about the building envelope and location

Building type
Year of construction
Building location
Wind exposure
Lowest outdoor temperature
Type of insulation

The calculated heat demand is a guideline and does not replace detailed professional planning.

Electric heating?
With TECHNOTHERM electric heaters

Do you already know your heat demand, or would you like to discuss your heating project with us? Send us your enquiry.

Three good reasons to speak with us:

  • Open questions clarified easily and clearly
  • Reliable advice backed by 40 years of experience
  • A tailored offer for your electric heating project

Request consultation now

    General Information

    Frequently asked questions about electric heaters and heat demand

    The key factor is which heating output is required for the specific room. With the TECHNOTHERM Heat Demand Calculator, you can determine your heat demand based on various building and room data. The result serves as guidance for selecting an appropriately sized electric heater.
    Various factors are taken into account for the calculation. These include, among others, the building type, year of construction and thermal insulation, as well as room area, external walls, windows and desired room temperature. The TECHNOTHERM Heat Demand Calculator guides you step by step through the required information.
    Calculate heat demand now

    A flat-rate figure in watts per square metre can only serve as a rough guide. The heating output actually required depends on the individual characteristics of the building and the room. That is why the TECHNOTHERM Heat Demand Calculator considers additional factors beyond room area alone.

    In addition to the required heating output, the application, room situation and desired type of heat emission also play a role. Before purchasing, it is therefore advisable to first calculate the heat demand and then choose an electric heater that meets the respective requirements.
    The calculated heat demand provides guidance for the required heating output. Which TECHNOTHERM electric heater is suitable for your room also depends on your individual requirements and the intended application. Our personal consultation will support you in making your selection.
    No. The TECHNOTHERM Heat Demand Calculator is intended as guidance for determining heat demand and the required heating output. A professional heating load calculation for planning a heating system cannot be replaced in every application.

    Buy an electric heater?
    With TECHNOTHERM electric heaters

    Get expert advice from TECHNOTHERM.

    • Open questions clarified easily and clearly
    • Reliable consultation with 40 years of experience
    • A tailored offer for your electric heating project
    Request a consultation now!

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    Visit us

    Branch locator

    Find your nearest branch

    Write us

    Contact form

    We look forward to your message

    Call us

    +49 (0) 3724 66869 0

    Mon. – Fri.: 08:00 a.m. – 20:00 p.m.
    Sat.: 08:00 a.m. – 17:00 p.m.

    Federal holidays and Sundays excluded

    Get advice

    Arrange an appointment

    Arrange a personal appointment

    Filialsuche

    Finden Sie die nächstgelgende Filiale

    Kontaktfomular

    Wir freuen uns auf Ihre Nachricht

    Dies ist die Überschrift

    Mo. - Fr.: 08:00 - 20:00 Uhr
    Sa.: 08:00 - 17:00 Uhr

    bundeseinheitliche Feiertage und Sonntag ausgeschlossen

    Terminvereinbarung

    Persönlichen Termin vereinbaren