Modern heating: efficient, sustainable and future-proof

Modern heating: efficient, sustainable and future-proof

Modern heating stands for energy-efficient technologies that not only protect the environment, but also reduce your heating costs. With a variety of innovative heating systems, homeowners today have the opportunity to optimally combine comfort and sustainability. In this article, we present the most important modern heating methods and show how they can change your everyday life.

What characterizes modern heating?

Compared to traditional heating systems such as oil or gas heating, modern heating methods are characterized by the following features:

  • Renewable energies: The use of environmental energy from the sun, air, water or biomass reduces dependence on fossil fuels.
  • Energy efficiency: Modern technologies such as heat pumps and solar thermal systems maximize energy utilization and reduce consumption.
  • Digitalization: Smart home systems enable intelligent control of your heating, which increases comfort and saves costs.

Advantages and disadvantages of heating systems at a glance

The following table shows the most important modern heating systems, together with their advantages and disadvantages:

Heating system Advantages Disadvantages
Heat pumps
  • Low-emission and environmentally friendly
  • Suitable for new buildings and well-insulated existing buildings
  • Eligible for subsidies from BAFA
  • High acquisition costs
  • Efficiency depends on the insulation
Solar thermal
  • Reduces fossil energy consumption
  • Virtually maintenance-free
  • Dependent on solar radiation
  • Requires additional heating in winter
Biomass heating system
  • Sustainable and climate-friendly
  • Particularly suitable for existing buildings
  • High space requirement for storage
  • Regular maintenance required
Hybrid heating
  • Flexible and efficient
  • Ideal for converting existing heating systems
  • High acquisition costs
  • Complex installation


Why choose Ofen 2

More warmth, more bitcoin, & zero compromise.
Ofen 2 Front

Ofen 2

New
1,000 W
Power*
50 m²
Area heated
32 dB
Noise level
up to 35 TH/s
Mining power*
€ 0.08 / kWh
Bitcoin reward
(1-year average)**
€ 0.18 / kWh
Bitcoin reward
(4-year average)**
90 x 32 x 14 cm
Size
24 kg
Weight
* ± 10%
** As at 06.2025
€1.590,00
incl. VAT & shipping
Pre-order now
Free shipping
30-day-return
Made in Austria

Smart home control: the future of modern heating

An important part of modern heating is the integration of smart home technology. With the help of intelligent thermostats and app controls, you can:

  • Set the temperature in each room individually
  • Monitor energy consumption in real time
  • Create automatic heating schedules that adapt to your daily routines

Smart home systems not only contribute to convenience, but can also reduce heating costs by up to 20%.

€20 Off: Subscribe to our Newsletter

Don't miss new releases, special offers & news about 21energy.

Conclusion: Modern heating for a better home

Modern heating means combining environmental friendliness, efficiency and comfort. Heat pumps, solar thermal and hybrid heating systems are just some of the options for making your home future-proof and energy-efficient. By integrating smart home technology, you can not only save energy but also increase comfort. Take advantage of government subsidy programs and plan your switch to a modern heating system today.

Image by wal_172619 from Pixabay

Maximilian Obwexer profile picture

Maximilian Obwexer

Maximilian Obwexer is the co-founder and CEO of 21energy. He shares his expertise here on the blog and as a speaker at various conferences. The main topic is Bitcoin mining & its waste heat utilization.

Send forward

Your share can inspire countless others.