ᐅ Issues Heating the Screed with an Air-to-Water Heat Pump

Created on: 30 Nov 2018 18:37
A
anat79
Hello everyone,
since November 19th we have had cement screed installed (with Q1 accelerator, meaning it should actually be walkable and heatable after 24 hours).
However, the heating was still missing. Since the day before yesterday it was finally installed and activated in the screed drying program (by the heating technician). In his presence, everything looked fine, and the flow temperature was rising slowly but steadily. Since yesterday morning, the temperature has stagnated at 14°C (57°F). The set target temperature is 35°C (95°F).

The heating system is a Panasonic Aquarea WH-MDC09H3E5, rated 9 kW with a 3 kW heating element. The heating element is currently switched off. Domestic hot water is also still off.

Unfortunately, the heating technician was not available today. We would like to increase the heating over the weekend, of course. Do you have any idea what might be causing this and what we could change?
Should we switch on the heating element and restart the screed drying program?
Or manually set a fixed flow temperature?
Thanks in advance!
B
Bookstar
30 Nov 2018 21:07
We used about 7000 kWh for roughly 3 weeks of heating. That’s quite a bit of energy 😀. But on the other hand, we saved on rent and a temporary heating system—somehow, you always end up paying for it one way or another, right?

No water supply in the house and 200 m² (2153 sq ft).
M
Mottenhausen
30 Nov 2018 21:30
How cold has it been for you in the past few days? With the current temperatures, it shouldn’t really be an issue yet. It also depends on how much the heating system tries to prevent the outdoor unit from freezing, which means it may not be drawing much heat from the surroundings anymore. (Adjustable setting)
A
anat79
30 Nov 2018 21:47
During the day, the temperature here has been around 4°C (39°F), and at night around 0°C (32°F).