Hello everyone,
We are planning a new build with approximately 190 sqm (2,045 sq ft), two stories, without a basement. The attic, about 65 sqm (700 sq ft), will be converted to include a bathroom and a storage room. The house will have a brick veneer exterior and will be built according to the energy-saving regulations. It is for a household of five people (2 adults + 3 children).
A mechanical ventilation system with heat recovery and KNX home automation are planned (if the budget allows, specifically for the KNX).
Once the house is completed, I would like to add solar thermal and photovoltaic systems after a few years.
I’m having trouble deciding between gas heating or a heat pump.
The gas connection costs me €2,500.
Could you help me make this decision?
And which manufacturer would you recommend?
Thanks!!!
Regards
We are planning a new build with approximately 190 sqm (2,045 sq ft), two stories, without a basement. The attic, about 65 sqm (700 sq ft), will be converted to include a bathroom and a storage room. The house will have a brick veneer exterior and will be built according to the energy-saving regulations. It is for a household of five people (2 adults + 3 children).
A mechanical ventilation system with heat recovery and KNX home automation are planned (if the budget allows, specifically for the KNX).
Once the house is completed, I would like to add solar thermal and photovoltaic systems after a few years.
I’m having trouble deciding between gas heating or a heat pump.
The gas connection costs me €2,500.
Could you help me make this decision?
And which manufacturer would you recommend?
Thanks!!!
Regards
Schlenk-Bär schrieb:
I keep thinking about this topic, even though our house construction won’t start for a few years. What kind of maintenance is required for an air-to-water heat pump? Since we just had our first and last maintenance done by the builder: Open it, vacuum it, change the filter, flush the heat exchanger, put the heat exchanger back in, close it up. Takes about half an hour once a year, something you can easily do yourself. We have a combined unit with controlled residential ventilation; for a standalone air-to-water heat pump it’s probably even a bit simpler.
R
RotorMotor24 Apr 2019 12:29Mycraft schrieb:
Everything has already been investigated and all results are freely available.
Everyone can form their own opinion. Unfortunately, there are some inconsistencies in the calculations.
For example, at the very top it says the status is January 2019.
But then electricity prices appear below 20 cents/kWh, sometimes even 17 cents/kWh.
And a feed-in tariff of 13 cents/kWh.
However, the savings from photovoltaics are then again calculated with 27 cents/kWh.
Income tax, insurance, maintenance, etc. are simply left out when it comes to photovoltaics.
For gas condensing boilers, only 85% efficiency is used instead of 100% (sometimes even 110% due to latent heat).
The cost of €969 for 11,700 kWh gas is also significantly (40%) higher than what comparison sites indicate.
You can clearly tell from these calculations which direction the bias comes from.
RotorMotor schrieb:
You can clearly see from the calculations which direction the wind is blowing. Absolutely, you can definitely notice the preference for gas. That’s probably not what you meant, but it can be interpreted either way. An air-to-water heat pump with an annual performance factor (APF) of 2.8 is really poor and expensive. Why use different hot water tanks and heating concepts (just underfloor heating compared to underfloor heating combined with radiators)?
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