ᐅ Passive house, combined heating system with solar thermal, energy recovery, photovoltaic panels?
Created on: 28 Oct 2009 20:56
B
Bunnyguard
So, I plan to have a house built for my family in the near future.
I have decided on a passive house because I want to minimize environmental impact and keep running costs low.
Now I am wondering which heating combinations I should use.
A ventilation system with heat recovery is a must...
Solar energy will be used for domestic hot water in combination with a large buffer tank.
I thought that heat recovery alone might not be enough to maintain the indoor temperature as I want it...
What additional heating options would you recommend?
Geothermal energy? Using solar also for heating? What are the possibilities?
Or is the ventilation with heat recovery sufficient?
I’ve heard that passive houses don’t need extra heating because heat recovery should be enough – is that true?
I’m also thinking about installing some photovoltaic panels on the roof to save even more energy for electrical appliances and the ventilation system’s motors, etc.
What do the experts suggest as a good combination that won’t cause problems, e.g., not keeping the house warm enough?
Many thanks for your help.
PS: Hello to everyone, I’m new here 😀
I have decided on a passive house because I want to minimize environmental impact and keep running costs low.
Now I am wondering which heating combinations I should use.
A ventilation system with heat recovery is a must...
Solar energy will be used for domestic hot water in combination with a large buffer tank.
I thought that heat recovery alone might not be enough to maintain the indoor temperature as I want it...
What additional heating options would you recommend?
Geothermal energy? Using solar also for heating? What are the possibilities?
Or is the ventilation with heat recovery sufficient?
I’ve heard that passive houses don’t need extra heating because heat recovery should be enough – is that true?
I’m also thinking about installing some photovoltaic panels on the roof to save even more energy for electrical appliances and the ventilation system’s motors, etc.
What do the experts suggest as a good combination that won’t cause problems, e.g., not keeping the house warm enough?
Many thanks for your help.
PS: Hello to everyone, I’m new here 😀
Hello,
gladly.
BUT chromate allergy is not called mason’s itch for nothing. In allergy tests at dermatology clinics, chromates cause positive reactions in 4–10% of cases and are among the most common contact allergens in Germany.
The reason is the very high cement content in wood-concrete composites to achieve adequate strength levels.
Best regards
gladly.
BUT chromate allergy is not called mason’s itch for nothing. In allergy tests at dermatology clinics, chromates cause positive reactions in 4–10% of cases and are among the most common contact allergens in Germany.
The reason is the very high cement content in wood-concrete composites to achieve adequate strength levels.
Best regards
Hello,
Wood (chip) concrete has bulk densities ranging from 400 to 600 kg/m³ (25 to 37 lb/ft³)
(I haven’t checked where the specific block you are using falls within this range)
A moderately dense mix consists of about < 25 percent by mass of crushed wood chips or sawdust,
about < 65 percent by mass of hydraulic binder and water, and possibly additional additives.
Note that the high cement content is necessary to petrify the wood. If the proportion is too low,
the material’s durability is significantly reduced, the wood develops mold spots, and decays.
(the plaster here is not a vapor barrier)
If you want to do something for your health, check whether the plaster contains a sufficient amount of lime,
as lime has antiseptic properties. (see the whitewashing of pigsties)
In your case, the microencapsulated phase change materials in gypsum plaster are obviously crucial.
But thank you for the topic, I will write something about it on my website.
Best regards
Wood (chip) concrete has bulk densities ranging from 400 to 600 kg/m³ (25 to 37 lb/ft³)
(I haven’t checked where the specific block you are using falls within this range)
A moderately dense mix consists of about < 25 percent by mass of crushed wood chips or sawdust,
about < 65 percent by mass of hydraulic binder and water, and possibly additional additives.
Note that the high cement content is necessary to petrify the wood. If the proportion is too low,
the material’s durability is significantly reduced, the wood develops mold spots, and decays.
(the plaster here is not a vapor barrier)
If you want to do something for your health, check whether the plaster contains a sufficient amount of lime,
as lime has antiseptic properties. (see the whitewashing of pigsties)
In your case, the microencapsulated phase change materials in gypsum plaster are obviously crucial.
But thank you for the topic, I will write something about it on my website.
Best regards
Hello parcus,
I hope that you research your information more thoroughly in the future. However, the spread of half-knowledge on this topic seems to stem from a lack of basic knowledge and reference materials. Building authority approvals, inspections in the areas of fire protection, structural load capacity, vapor diffusion behavior, rot resistance, and all other relevant facts can be found online in abundance.
Please research before posting; otherwise, this forum loses its purpose. I find your other information about passive houses more meaningful. However, I believe the current design of passive houses can be improved, as it does not sufficiently take into account the needs and lifestyles of people. Incorporating more natural elements and less technology in the house can lead to surprising results.
Regards
I hope that you research your information more thoroughly in the future. However, the spread of half-knowledge on this topic seems to stem from a lack of basic knowledge and reference materials. Building authority approvals, inspections in the areas of fire protection, structural load capacity, vapor diffusion behavior, rot resistance, and all other relevant facts can be found online in abundance.
Please research before posting; otherwise, this forum loses its purpose. I find your other information about passive houses more meaningful. However, I believe the current design of passive houses can be improved, as it does not sufficiently take into account the needs and lifestyles of people. Incorporating more natural elements and less technology in the house can lead to surprising results.
Regards
Hello,
Obviously, I will not be obtaining information from company brochures that are solely designed for marketing purposes.
Furthermore, extensive studies were carried out by ETH Zurich between 2000 and 2001, which are available.
Or is this supposed to be an advertising campaign for the products?
Best regards
Obviously, I will not be obtaining information from company brochures that are solely designed for marketing purposes.
Furthermore, extensive studies were carried out by ETH Zurich between 2000 and 2001, which are available.
Or is this supposed to be an advertising campaign for the products?
Best regards
B
Bunnyguard1 Feb 2010 15:02What came to my mind recently, especially in winter, is that the air in our apartment feels very dry.
Now, if I have a ventilation system with heat recovery in the new house, will the air be somehow humidified, or will it also be dry like with an air conditioner?
Kind regards
Now, if I have a ventilation system with heat recovery in the new house, will the air be somehow humidified, or will it also be dry like with an air conditioner?
Kind regards
Similar topics