Reference project: Residential and commercial building on Lake Constance

• Year of construction: 2018
• Type of construction: KfW 55, including photovoltaic system with 9.6 kW/p.
• Area: approx. 320 m²
• Heating system: DIGEL HEAT infrared heaters
• Heating power: 16 kW
• Number of heating elements: 23 infrared heaters
• Hot-water heating: 3 flow heaters

The customer is excited to report: "With this energy solution for my residential and commercial building, I saved €11,000 in investment costs for heating and hot-water heating with infrared and flow heaters compared to a heat pump with underfloor heating. The photovoltaic system of 9.6 kW/p minimises energy consumption to a bare minimum. Since I was even able to feed excess power to the grid, I received a rebate.

Power consumption:
Heating period from 06/2018 to 04/2019: 9,142 kWh (2011.24 ct/kW net) = €2011.24

Fed by photovoltaic system
from 06/2018 to 04/2019: 6,618 kW (12 ct/kW net) = €794.16

My costs for heating, commercial electricity, hot water, and domestic electricity were € 122 net/month for a usable area of 320 m² residential and commercial space. My family and I enjoy the pleasant warmth of the infrared heaters to the fullest and I do not regret my decision in any way."

Back to the reference overview