Hello, newly built bungalow with 250 sqm (2691 sq ft) of living space, about 150 sqm (1615 sq ft) of which is open up to the roof!
Temperature in the attic is affected by the sun.
Air ducts are routed above the ceiling or beams, or inside the walls, not down to the floor.
There is a 300-liter (79-gallon) hot water tank and an energy storage system, as well as a photovoltaic system.
What are the potential issues or considerations?
Temperature in the attic is affected by the sun.
Air ducts are routed above the ceiling or beams, or inside the walls, not down to the floor.
There is a 300-liter (79-gallon) hot water tank and an energy storage system, as well as a photovoltaic system.
What are the potential issues or considerations?
S
Steffen8031 Jul 2017 17:45Maybe write in full sentences and formulate properly. There are answers to be found there as well.
I was just about to say the same... The question isn’t really clear.
If it’s generally about an air heating system... yes, it works great in the Mediterranean climate... but in places where temperatures can drop to -20°C (-4°F), using air as the heating medium is rather suboptimal... even if the system manufacturers claim otherwise...
If it’s generally about an air heating system... yes, it works great in the Mediterranean climate... but in places where temperatures can drop to -20°C (-4°F), using air as the heating medium is rather suboptimal... even if the system manufacturers claim otherwise...
Additional information to my previous post:
I have read that some members in this forum have experience with the air-to-air heat pumps (Proxon) from Zimmermann. Maybe someone can help me with my two questions:
The heat pump also heats the domestic hot water in the connected storage tank. For the 300-liter (79-gallon) hot water tank, there is an optional boost function. This involves replacing the heating element from 1.5 kW to 4.5 kW to heat the water faster when needed. The heating element is activated if the heat pump’s output is not enough to bring the water to a certain temperature (or if it is turned on manually).
This feature was recommended to us because we are building a house with a granny flat.
We are a household of two people, and an additional two people are expected to live in the granny flat.
My question is whether this boost function is really worth it for us.
The second question concerns the cooling function of the system. Here, too, we wonder if we can do without it. It will probably have to run for a long time to have any effect and will consume a considerable amount of electricity.
Furthermore, the quote mentions in parentheses “Observe efficiency house standard!” regarding the cooling function.
This means that if we decide to use the cooling feature, we must install more photovoltaic panels on the roof to balance the increased consumption; otherwise, we would no longer be eligible for KfW40 (building energy efficiency) subsidies.
I have read that some members in this forum have experience with the air-to-air heat pumps (Proxon) from Zimmermann. Maybe someone can help me with my two questions:
The heat pump also heats the domestic hot water in the connected storage tank. For the 300-liter (79-gallon) hot water tank, there is an optional boost function. This involves replacing the heating element from 1.5 kW to 4.5 kW to heat the water faster when needed. The heating element is activated if the heat pump’s output is not enough to bring the water to a certain temperature (or if it is turned on manually).
This feature was recommended to us because we are building a house with a granny flat.
We are a household of two people, and an additional two people are expected to live in the granny flat.
My question is whether this boost function is really worth it for us.
The second question concerns the cooling function of the system. Here, too, we wonder if we can do without it. It will probably have to run for a long time to have any effect and will consume a considerable amount of electricity.
Furthermore, the quote mentions in parentheses “Observe efficiency house standard!” regarding the cooling function.
This means that if we decide to use the cooling feature, we must install more photovoltaic panels on the roof to balance the increased consumption; otherwise, we would no longer be eligible for KfW40 (building energy efficiency) subsidies.
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