ᐅ ERR, KNX, heat pump, and controlled residential ventilation – what are your thoughts?

Hello everyone,

Does the individual room control make sense with this combination? (My heat pump has an active-passive cooling system.)

This is, of course, a new build.

I’m interested in hearing your opinions.

Regards

No, it hasn’t made sense since at least the 2009 Energy Saving Ordinance. To put it bluntly, in any situation where a low-temperature heating system is used.

At least not the way the average homebuilder usually understands ERR.

No, ERR does not make sense in this configuration (and in 99% of cases not for underfloor heating systems either).

Mycraft schrieb:

No, it hasn’t made sense at least since the Energy Saving Ordinance 2009. To put it bluntly, in any situation where a low-temperature heating system is used.

At least not in the way the average homeowner usually understands ERR.

When does ERR actually make sense?

Well, here we are again with this often-discussed topic. We are currently planning our single-family house with exactly this configuration! When I threw out the now countless times read "No, it doesn’t make sense!" during the meeting with the architect and the heating engineer, I was met with wide-eyed looks. In the end, it came down to this: either I sign off that the heating engineer installs it against all laws and regulations and I waive any warranty, or I go for a simplified energy-efficient retrofit with KNX (after all, there are temperature sensors built into the MDT switches) and the heating actuators are not that expensive either. So, of course, I backed down.

That's exactly how we do it as well. Almost out of necessity.