Energy self-supplying system: Customer service for installments, expansion and renewal

Customer service


Detailled customer service for all questions in reference to the energy self-supplying system is through AVP GbmH Energie, licensed trade companies. This ensures you as high demand customers a utmost customer service quality as well as liability. Your consultant will design your energy self-supplying system in accordance with your wishes, will calculate responsibly and install your energy self-supplying system in best performance.

Very good for you: From consultation to the final installation of your energy self-supplying system: everything from a trusted source.


Retrofitting or restoring of your existing hot water and heating system

Existing building heating systems and boilers can be retrofitted or expanded without any problems. This is generally valid for all hot water and heating systems, e. g. oil heating systems, natural gas heating systems, electricity systems of all kind, pellet heating systems, power-heating systems etc. For new constructions and complete heating changes heating pumps of all kinds are economically and ecologically appropriate.

The energy self-supplying system is generally compatible with all usual systems and material producers.




Intelligent, regenerative energy self-supplying:


The CERTAINTY and SECURITY, to be able to produce the reasonable part of the own electricity, hot water and heating energy and be able to save continuously energy cost: PRICELESS.


Development and core products for the energy self-supplying system:


Fully automated building control system „smart heater" with energy storage for electricity, hot water and heating: co-development AVP. Production and licensing procedure by Krentzel GmbH exclusively for AVP


Heating pumps of all kind for commercial customers at exclusive whole sale prices

General Terms and Conditions

As long as your order has not been received you can change the details or cancel it anytime.

As soon as you have confirmed your order you can cancel or change it only at the day of the order. As soon as the order has been processed it is not possible to change it.

If you want to cancel the order on the day of the order please use our contact form. If your order contains several articles you can either cancel the whole order or remove single articles.

If you want to change the order on the day of the order e.g. to change the adress of delivery please contact us by phone. We are available Monday to Thursday 8:30 am – 12:00 pm and 2:30 pm – 5 pm and Fridays from 8:30 am – 1 pm.

Your right of withdrawal remains unaffected by this.

14 days for return or withdrawal

You can return your order for free within 14 days after receipt. Of course you can use your right of withdrawal and cancel your contract within 14 days after receiving your order.