VIESSMANN: Heating, Ventilation & Air Conditioning - HVAC

Reference document: HVAC - Heating, Ventilation and Air Conditioning

This file allows you to:

• Understanding how the systems work heating, ventilation and air conditioning
• Choose the equipment that's right for your home
• Compare the main solutions available
• Improve thermal comfort and indoor air quality
• Mastering the principles of installation, maintenance and energy performance
• Explore brands, articles, and news related to CVC

👉 Reference document: the HVAC

A context favorable to energy renovation

Rising energy costs, increased regulatory requirements

Poorly insulated homes or those equipped with energy-inefficient appliances have become a major concern. Energy-efficient renovations are now essential for reducing expenses and improving comfort.

Since October 2025 , the revised Energy Savings Certificates (CEE) scheme, known as "Coup de Pouce," has made purchasing a heat pump even more attractive. This increased financial support accelerates projects to replace old boilers and facilitates access to low-carbon systems.

"The new PAC Boost scheme has become a trigger for many households wishing to take the plunge towards a more economical and greener solution."

Viessmann: a complete ecosystem for the high-performance home

The heat pump, a flagship solution

Heat pumps occupy a central place in Viessmann's product range. Designed for both renovation and new construction, they combine:

• High energy efficiency ,

• reduction in heating costs ,

• reduction in emissions

• Compact design , suitable for small spaces.

These models can be easily integrated into existing homes, even as a replacement for a traditional boiler.

Condensing gas boilers: a solution for homes not eligible for heat pumps

For homes where heat pumps are difficult to install, Viessmann offers high-performance condensing gas boilers . They provide immediate energy savings thanks to their excellent efficiency, while remaining compatible with existing heating systems.

Photovoltaics and self-consumption: producing your own energy

Viessmann is also developing a complete photovoltaic range:

• solar panels,

• self-consumption solutions,

• energy management systems,

• optimized domestic hot water production.

These solutions allow households to reduce their dependence on the grid and produce cleaner electricity.

"Heat pumps, condensing gas, photovoltaics: Viessmann brings together all the levers to sustainably improve the thermal performance of homes."

Local expertise: the Viessmann Proactive network

Installation, advice and maintenance

The Proactive network and brand partners play a decisive role:

• energy audit,

• choosing the most suitable solution,

• certified installation

• maintenance contract,

• Fast after-sales service.

This local presence reassures households and guarantees a consistent quality of execution across the entire territory.

Continuing education courses for installers

Viessmann invests heavily in technical training to maintain a high level of expertise: adjustments, hydraulics, photovoltaic integration, and new standards. This skills development is essential for ensuring the performance of the installations.

Attractive and cumulative financial aid

The new PAC Boost

The revision of the Energy Savings Certificates (CEE) scheme in October 2025 has increased the amount of subsidies for households replacing old equipment with a heat pump. This scheme, which can be combined with MaPrimeRénov' depending on certain criteria, greatly facilitates the process.

Support in preparing applications

Viessmann's partners support households in:

• understanding the available assistance,

• the preparation of the files,

• verification of eligibility conditions.

This methodological support accelerates projects and limits administrative misunderstandings.

Inspire, demonstrate, reassure: Viessmann on the ground

Concrete achievements as proof of performance

The brand highlights case studies and reference projects, such as the energy renovation carried out with content creator Lucas Marissal , which has garnered a large community in the construction industry. These concrete examples illustrate the ease of implementation and the visible benefits after installation.

A strong presence at professional events

Viessmann consolidates its technical and institutional legitimacy by participating in:

• Gas Industry Meetings 2025 ,

• ISH trade fair in Frankfurt , where the brand presented its multi-brand strategy and its heating/solar innovations.

These meetings provide an opportunity to exchange ideas with professionals, to present regulatory developments and to promote Viessmann solutions within a demanding sector framework.

Viessmann, a key player in the energy transition

By providing high-performance solutions, comprehensive services, and a network of skilled professionals, Viessmann has become a leading partner for improving the energy efficiency of homes. In a context of increased subsidies, the brand facilitates renovation by offering a holistic approach: from diagnosis to commissioning, including energy production and ongoing service.