Manufacturer for air-water heat pumps & ventilation systems needed

  • Erstellt am 2013-02-08 11:23:05

Tobiax

2013-02-08 11:23:05
  • #1
Hello!

We are planning a massive KfW70 house. We have decided on an air-to-water heat pump as well as a ventilation system.

Now we have seen with some well-known manufacturers that there are also combinations of pump/ventilation/water storage. What is your opinion on this? Rather separate or an "all-in-one" device?

Tobiax
 

€uro

2013-02-08 11:46:08
  • #2
Whether an air heat pump is actually effective here because of KfW 70 should be checked externally ;-) This question can basically be answered by anyone with existing intellect! Combi means with regard to energy efficiency, due to competing demands, always compromise ;-) It is usually cheaper to purchase, often chosen by general contractors/main contractors, since it mostly only matters what the total at the bottom right is ;-) Actual economic efficiency is less of a focus because later, excessive consumption costs are not part of the contract ;-)

best regards
 

TripleB

2013-02-23 21:33:57
  • #3


May I ask what you mean by that, especially regarding KfW70?

Thank you in advance for your answer.
 

€uro

2013-02-24 10:24:04
  • #4
A KfW 70 building has a higher heating energy demand than better insulated buildings. The higher the demand, the more important a high seasonal performance factor of the heat pump. For air heat pumps, the seasonal performance factor is lower for various reasons than, for example, for ground source heat pumps. With low demand (well to very well insulated buildings; mild climate locations), this plays a less significant role than, for example, in moderately insulated buildings in colder locations.
In individual cases, the actual demand (power, energy) for heating and hot water should first be determined to differentiate appropriately. But be careful, these are not the Energy Saving Ordinance/KfW results!

Best regards
 

Similar topics
08.01.2013Air heat pump with fireplace, water-bearing stove, hot water heating26
28.04.2010New construction in planning, which heating system?10
06.01.2012Geothermal vs. Air-to-Water Heat Pump12
25.06.2020Air heat pump or use gas and solar?300
29.11.2012Which heating system is currently the best?81
28.10.201236 cm Ytong exterior wall, solid construction, mold formation, insulation37
05.10.2012Air pump more efficient than ground pump, noise disturbance?12
29.01.2015Meaningful energy concept for new Kfw70 construction without oil or gas19
30.04.2015KFW70 with gas-solar heating65
23.10.2015Prefabricated house heating: Gas / Air heat pump / Underfloor heating22
06.12.2015Heat pump / final energy demand / annual performance factor20
18.09.2016Operate heat pump autonomously with photovoltaic system.88
24.04.2016KFW70 with gas condensing boiler + solar hot water + chimney10
24.01.2017Air heat pump vs geothermal energy, new build 400m233
12.11.2016Extremely high pellet consumption (200kg in 3 days) in a Kfw70 multi-family house!37
10.11.2017Back payment air heat pump disaster, contracting party, electricity supplier11
12.04.2019BAFA innovation funding air heat pump43
24.07.2019Energy Saving Ordinance 2016 or KFW 55 for bungalow with air-water heat pump & controlled residential ventilation, optional photovoltaic47
24.01.2020Annual performance factor calculation for funding (parameters and calculation tool)29

Oben