SaniererNRW123
2022-09-27 23:27:09
- #1
Never - the surcharge for ventilation without HRV is a real pharmacist's price. For less money, you can buy all the devices with heat recovery for your entire house.The additional costs for a decentralized ventilation system with heat recovery are approximately 4000 €. Now we want to calculate when we will roughly get the investment back.