I'm looking for a HVAC system or device which can maintain predefined air temperature, humidity and CO2 level in the house. It would be nice if such a system can be upgraded to scale it for more rooms/zones with independent sensors in each zone. Both commercially available systems and custom projects are considered.
UPD: Some clarification is really needed:
- I want such a system for a normal residental house.
- Humidity control is important during winter, usually it is hard to get 20% in-door humidity without extra device.
- High concentration of CO2 level is not really healthy for people, and I'd like to keep it lower than that. The idea is increase ventilation flowrate when CO2 level rises.