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
R
RotorMotor24 Apr 2019 10:04Lumpi_LE schrieb:
Insight is the first step toward improvement.Always promoting photovoltaic systems yourself, but dismissing others’ statements as false without any arguments.
I personally also like photovoltaic systems combined with heat pumps in well-insulated houses. The reasons are security against rising energy costs and environmental protection. However, the payback period is often much longer than you suggest here, and as Bookstar says, the whole technology also involves risks regarding technical failures.
RotorMotor schrieb:
Always promoting only photovoltaics yourself, but dismissing others’ statements without arguments as wrong.
I personally also find photovoltaics plus heat pump in a well-insulated house to be a good solution.
The reasons are security against rising energy costs and environmental protection.
However, the payback period is often significantly longer than you suggest here, and as Bookstar says, the entire technology also carries risks regarding technical failures. Fortunately, I started a thread… it really isn’t easy.
H
HilfeHilfe24 Apr 2019 10:10If I had the choice, which we didn’t have! Stick with gas!!! Heat pumps are just trouble.
That didn’t work out as hoped...
Your “facts” are just your opinion, nothing more. Gas systems run without issues for 25 years, while heat pumps are considered junk after 15 years. Sure, you probably have long-term studies to back that up(?). Maintenance costs for a heat pump? I’m not aware of any, but I can name plenty for gas systems.
A fact would be that gas technology is well-tested and reliable, with not much that can go wrong, plus gas costs are affordable. Heat pumps for residential use haven’t been around that long, so there is still room for development. When the pump operates correctly, heating costs are comparable or better if geothermal energy is used.
That’s the current situation. What happens, for example, if a CO2 tax is introduced? Once it’s in place, no one will consider installing a gas boiler anymore. No one knows how much gas prices will rise – there’s significant dependence on other countries, and so on.
Well, this discussion could go on forever. Those who know how can calculate and read up on it, and should do whatever makes them happy. If you end up paying €40,000 (or even €70,000 if gas prices rise unfavorably and burning gas is heavily taxed) over 20 years for your gas heating and investment, I have just spent €20,000 on my heat pump plus photovoltaic system and flow temperature control. With my above-mentioned proposal, I would easily be at zero.
Your “facts” are just your opinion, nothing more. Gas systems run without issues for 25 years, while heat pumps are considered junk after 15 years. Sure, you probably have long-term studies to back that up(?). Maintenance costs for a heat pump? I’m not aware of any, but I can name plenty for gas systems.
A fact would be that gas technology is well-tested and reliable, with not much that can go wrong, plus gas costs are affordable. Heat pumps for residential use haven’t been around that long, so there is still room for development. When the pump operates correctly, heating costs are comparable or better if geothermal energy is used.
That’s the current situation. What happens, for example, if a CO2 tax is introduced? Once it’s in place, no one will consider installing a gas boiler anymore. No one knows how much gas prices will rise – there’s significant dependence on other countries, and so on.
Well, this discussion could go on forever. Those who know how can calculate and read up on it, and should do whatever makes them happy. If you end up paying €40,000 (or even €70,000 if gas prices rise unfavorably and burning gas is heavily taxed) over 20 years for your gas heating and investment, I have just spent €20,000 on my heat pump plus photovoltaic system and flow temperature control. With my above-mentioned proposal, I would easily be at zero.
S
Schlenk-Bär24 Apr 2019 10:14Bookstar schrieb:
Maintenance costs are also significantly higher.I keep thinking about this topic, even though the house construction won't start for a few years. What kind of maintenance does an air-to-water heat pump require?Lumpi_LE schrieb:
In my opinion, if you plan to do some work yourself, a horizontal earth heat exchanger combined with a Nibe heat pump is the optimal solution. Add photovoltaic panels as large as possible, for example 30kWp if space allows.
With government subsidies and doing the work yourself, the cost is about 25,000 to 35,000 euros. In return, you have no heating or electricity costs and can even make a profit of around 200 € (euros) per month.
(This is a rough idea of what’s possible) You suggest that now because this is what you have!
But if a gas connection is already available, adding solar is cheaper and more convenient.
Considering alternatives only makes sense when no gas connection is possible.
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