ᐅ Natural gas heating system. Natural gas heat pump, micro combined heat and power unit?
Created on: 22 Oct 2015 13:17
R
Rafaelsen
Hello
We are planning to build a single-family house in the near future. Since we are still at the very beginning and currently looking for a plot of land, this near future will probably start around 2016/2017. Until then, I am reviewing concepts and designing the home. As the Energy Saving Ordinance 2016 will be tightened again 😱, questions about heating arise. Since I absolutely and non-negotiably 😎 want a gas stove and a heating fireplace, it will probably come down to a gas heating system. The chimney has to be built anyway, so why not a double-flue one. And since a gas connection is necessary for the gas stove, you can also operate a gas heating system directly. And no, a gas stove with a bottle is not an alternative. 🙄
So, the Energy Saving Ordinance is becoming stricter, which makes installing a gas condensing boiler more difficult. Alternatives? Ideas? Experiences? 🙂
Who among you uses a natural gas heat pump? Depending on the type, gas engine heat pump, zeolite heat pump?
Who has a micro combined heat and power unit? Conventional or Stirling engine?
Can you share your experiences and investment costs?
We are planning to build a single-family house in the near future. Since we are still at the very beginning and currently looking for a plot of land, this near future will probably start around 2016/2017. Until then, I am reviewing concepts and designing the home. As the Energy Saving Ordinance 2016 will be tightened again 😱, questions about heating arise. Since I absolutely and non-negotiably 😎 want a gas stove and a heating fireplace, it will probably come down to a gas heating system. The chimney has to be built anyway, so why not a double-flue one. And since a gas connection is necessary for the gas stove, you can also operate a gas heating system directly. And no, a gas stove with a bottle is not an alternative. 🙄
So, the Energy Saving Ordinance is becoming stricter, which makes installing a gas condensing boiler more difficult. Alternatives? Ideas? Experiences? 🙂
Who among you uses a natural gas heat pump? Depending on the type, gas engine heat pump, zeolite heat pump?
Who has a micro combined heat and power unit? Conventional or Stirling engine?
Can you share your experiences and investment costs?
R
Rafaelsen23 Oct 2015 10:38So the opinions are quite clear.
I would also prefer a condensing boiler.
I just wonder how this fits with the new energy-saving regulations.
I would also prefer a condensing boiler.
I just wonder how this fits with the new energy-saving regulations.
The new energy saving regulation from 2016 is slightly less demanding than KfW70 in 2015.
=> If you meet KfW70 standards today, you will also comply with the 2016 energy saving regulation.
=> KfW55 requirements remain the same; if you meet KfW55 today, you will also meet them in 2016.
=> KfW70 will no longer be subsidized.
=> If you meet KfW70 standards today, you will also comply with the 2016 energy saving regulation.
=> KfW55 requirements remain the same; if you meet KfW55 today, you will also meet them in 2016.
=> KfW70 will no longer be subsidized.
E
ErikErdgas12 Nov 2015 18:58Hello Rafaelsen,
There are still some points to consider for a coherent overall concept that you should include in your planning. Since there is still some time before the final decision, here are a few remarks:
- The economic efficiency of a combined heat and power (CHP) system strongly depends on how the generated electrical energy is used. The larger the share that must be fed into the distribution grid, the less economical it becomes. Therefore, it is important to consider how your electrical consumption is distributed over time (keyword: base load). There are several approaches that can help better correlate generation and consumption to achieve higher self-consumption (keyword: smart home).
- The zeolite heat pump mentioned in the thread is a technological concept that has not yet established itself in mass applications, but with tightening energy standards—both legal (energy saving regulations) and from funding agencies (KfW and local programs)—there are new opportunities to use the energy carrier natural gas (keyword: primary energy factor, efficiency). If you are considering natural gas, check the current prices for a gas heat pump. At the same time, inquire about reference projects from HVAC (heating, ventilation, and air conditioning) contractors. On the websites of HVAC trade associations, it is possible to narrow down the search for contractors specializing in CHP and renewable energy.
- How many people will live in the house, and how many may be added over time?
- What is your current heat consumption, and do you have a separate meter for hot water? This could help to better characterize consumption behavior.
Best regards, Erik
There are still some points to consider for a coherent overall concept that you should include in your planning. Since there is still some time before the final decision, here are a few remarks:
- The economic efficiency of a combined heat and power (CHP) system strongly depends on how the generated electrical energy is used. The larger the share that must be fed into the distribution grid, the less economical it becomes. Therefore, it is important to consider how your electrical consumption is distributed over time (keyword: base load). There are several approaches that can help better correlate generation and consumption to achieve higher self-consumption (keyword: smart home).
- The zeolite heat pump mentioned in the thread is a technological concept that has not yet established itself in mass applications, but with tightening energy standards—both legal (energy saving regulations) and from funding agencies (KfW and local programs)—there are new opportunities to use the energy carrier natural gas (keyword: primary energy factor, efficiency). If you are considering natural gas, check the current prices for a gas heat pump. At the same time, inquire about reference projects from HVAC (heating, ventilation, and air conditioning) contractors. On the websites of HVAC trade associations, it is possible to narrow down the search for contractors specializing in CHP and renewable energy.
- How many people will live in the house, and how many may be added over time?
- What is your current heat consumption, and do you have a separate meter for hot water? This could help to better characterize consumption behavior.
Best regards, Erik
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