ᐅ New single-family house construction with a gas heating system, but without solar panels
Created on: 29 Jun 2015 17:49
H
Hirsl
Hello everyone,
I have already searched on Google, but I couldn’t find a suitable answer for our specific project.
In short: We want to build a single-family house. It will have a gas heating system, but I want to avoid solar panels, heat pumps, or other alternatives (please don’t question the reasoning behind this).
Here are some key details:
- Single-family house, about 153m² (1646 sq ft) of living space on 2 full floors plus a full basement
- 365 mm (14.4 inch) exterior wall, T10 bricks, possibly T9 bricks
- No KfW funding!
- decentralized ventilation system with heat recovery
- wood stove on the ground floor
Of course, I know that the Energy Act (EEnG) requires a certain percentage of energy consumption to come from renewable sources.
My question is: Under the above conditions, is it sufficient to simply choose an eco-friendly gas tariff from the energy supplier, allowing me to avoid installing solar panels, additional insulation, heat pumps, or similar measures? Or is it mandatory to install solar panels on the roof?
I have already searched on Google, but I couldn’t find a suitable answer for our specific project.
In short: We want to build a single-family house. It will have a gas heating system, but I want to avoid solar panels, heat pumps, or other alternatives (please don’t question the reasoning behind this).
Here are some key details:
- Single-family house, about 153m² (1646 sq ft) of living space on 2 full floors plus a full basement
- 365 mm (14.4 inch) exterior wall, T10 bricks, possibly T9 bricks
- No KfW funding!
- decentralized ventilation system with heat recovery
- wood stove on the ground floor
Of course, I know that the Energy Act (EEnG) requires a certain percentage of energy consumption to come from renewable sources.
My question is: Under the above conditions, is it sufficient to simply choose an eco-friendly gas tariff from the energy supplier, allowing me to avoid installing solar panels, additional insulation, heat pumps, or similar measures? Or is it mandatory to install solar panels on the roof?
@dready sorry, I didn’t realize you weren’t allowed to disagree with a mod.
I’m just repeating what we were taught at trade school (plumbing, heating, and air conditioning).
Unfortunately, I could only quickly find terminology online and a value of 40 W/m²*K (13 Btu/hr·ft²·°F) for the building envelope as the “worst” energy-saving regulation figure. I’d need to look at that more closely or double-check the calculations.
I also need to review § 7 paragraph 2 and Appendix 4 in detail. I’m not a lawyer, but if I’m understanding it correctly at first glance, it partly refers to combined heat and power (CHP) systems. (I’ve never been completely confident with all those paragraphs, subsections, sentences, and numbers).
Anyway, have a good evening, see you tomorrow.
So long, Scarfy
I’m just repeating what we were taught at trade school (plumbing, heating, and air conditioning).
Unfortunately, I could only quickly find terminology online and a value of 40 W/m²*K (13 Btu/hr·ft²·°F) for the building envelope as the “worst” energy-saving regulation figure. I’d need to look at that more closely or double-check the calculations.
I also need to review § 7 paragraph 2 and Appendix 4 in detail. I’m not a lawyer, but if I’m understanding it correctly at first glance, it partly refers to combined heat and power (CHP) systems. (I’ve never been completely confident with all those paragraphs, subsections, sentences, and numbers).
Anyway, have a good evening, see you tomorrow.
So long, Scarfy
B
Bauexperte1 Jul 2015 23:27Good evening,
You can always disagree with a mod. At least I can’t walk on water.
Then maybe you didn’t listen carefully, or the master presenting wasn’t fully familiar with the topic, or this:
is the explanation for the conflict.
Several single-family homes have been built nationwide based on the 15% rule, achieving KfW 70 efficiency house status; demonstrably! If you don’t believe me, ask an energy consultant you trust.
Regards, Bauexperte
Scarfy schrieb:
Sorry, I didn’t know you weren’t allowed to disagree with a mod.
You can always disagree with a mod. At least I can’t walk on water.
Scarfy schrieb:
I’m just repeating the stuff that was taught to us at the master craftsman school (HVAC/plumbing and heating).
Then maybe you didn’t listen carefully, or the master presenting wasn’t fully familiar with the topic, or this:
Scarfy schrieb:
(I never really fully understood that whole paragraph and sentence number thing)
is the explanation for the conflict.
Several single-family homes have been built nationwide based on the 15% rule, achieving KfW 70 efficiency house status; demonstrably! If you don’t believe me, ask an energy consultant you trust.
Regards, Bauexperte