ᐅ How often should the heating circuit be refilled in a new building with underfloor heating?
Created on: 18 Sep 2019 10:53
V
Vega82
Hello everyone,
how often nowadays does water need to be refilled in a new building (built in 2016) with underfloor heating?
We have a Viessmann gas boiler and about 140m² (1507 ft²) of heated area.
Currently, I need to refill water about once a year because the pressure drops from 1.5 bar to around 0.9 bar. The underfloor heating only runs about 7.5 of 12 months, and the rest of the time only hot water is produced.
In your experience, is this still within a normal range, or should I start to be concerned?
how often nowadays does water need to be refilled in a new building (built in 2016) with underfloor heating?
We have a Viessmann gas boiler and about 140m² (1507 ft²) of heated area.
Currently, I need to refill water about once a year because the pressure drops from 1.5 bar to around 0.9 bar. The underfloor heating only runs about 7.5 of 12 months, and the rest of the time only hot water is produced.
In your experience, is this still within a normal range, or should I start to be concerned?
H
hampshire29 Sep 2019 11:26We had to refill our heating system repeatedly. Twice the expansion vessel was defective, and the connection to the water supply was also leaking slightly. In the beginning, there was often some air in the system. Draining it caused pressure loss → refill.
It doesn’t have to be anything expensive.
Our floor-level heating boiler and exposed water pipes (radiator connection) in Berlin received additional water once a month and operated dry and reliably. Where the pressure was released – no idea.
It doesn’t have to be anything expensive.
Our floor-level heating boiler and exposed water pipes (radiator connection) in Berlin received additional water once a month and operated dry and reliably. Where the pressure was released – no idea.