ᐅ Air-to-Water Heat Pump: Current Consumption and Data

Bookstar schrieb:

That could explain the low consumption. We haven’t seen a single ray of sunshine for months. On a sunny day, we also use about 30-50% less heating energy.

You misunderstood. I’m not talking about now, but when the sun is shining. The photovoltaic panels are covered in snow, and in the last 7 days, I’ve seen the sun for only 3 hours.
It’s about time the sun comes out again.

Zaba12 schrieb:

You misunderstood. I’m not talking about right now, but when the sun is shining. The photovoltaic panels are covered in snow, and in the last 7 days, I’ve only seen sunlight for about 3 hours.
It’s about time the sun comes out again.

I’m just trying to find the reason for the unrealistically low energy consumption. Was your house really that small? I don’t think so. So there must be something you’re currently not accounting for.

The only things I can think of are a wood stove, sunlight, or a reading error. 13 kWh for heating including hot water isn’t possible with an air-to-water heat pump at below freezing temperatures. Physics...

Confused electric power with generated heat? 🙂

That’s why you should always specify whether you mean electric power or generated heat.

T_im_Norden schrieb:

Confusing electricity with generated heat? 🙂

That's why it's always important to specify whether you mean electricity or generated heat.

But generated heat would also be higher, right? Or what do you mean by that?

Zaba12 schrieb:

At least on the ground floor, we have a very high solar gain. The upper floor doesn’t really compare, but downstairs it gets quite warm even without lowering the external blinds during full sunlight. At least that doesn’t bother me when the underfloor heating is turned off.

Does it make sense to keep the circulation pump running to distribute the solar gains through the underfloor heating throughout the entire house?
I think I’ve read about this several times before.

A theoretical question—I already own a heat pump but haven’t operated it yet. 😉

@Bookstar
If it had a 13 kWh electricity consumption, that would correspond to about 50 kWh heat output with a COP of 4.

@KingJulien
Running the pump makes sense because in winter the pump runs anyway, so the distribution happens automatically, unless the smart devices block the room, of course.
One reason not to use smart devices.