ᐅ Alternatives to Outdoor Installation of an Air Source Heat Pump
Created on: 12 Jan 2022 17:45
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ConnyJash
Hello dear house building forum,
We are building a KFW55 semi-detached house with approximately 150m² (1,615 sq ft) of living space. The project is being carried out with a general contractor. During planning, it turned out that the proposed location for the air source heat pump (behind the garage, at the neighbor’s property line) is not allowed because:
Our general contractor has suggested the following options:
ConnyJash
We are building a KFW55 semi-detached house with approximately 150m² (1,615 sq ft) of living space. The project is being carried out with a general contractor. During planning, it turned out that the proposed location for the air source heat pump (behind the garage, at the neighbor’s property line) is not allowed because:
- The location is behind the building boundary line
- The required setback of 3m (10 feet) from the neighboring property is not met
Our general contractor has suggested the following options:
- Ground source heat pump, with additional costs of at least 15,000 EUR
- Exhaust air heat pump, probably no additional costs
- Where can I find reliable information about alternatives to outdoor installation of an air source heat pump? Which organizations or professionals could provide expert advice (possibly for a fee)?
- What is the difference between an air source heat pump and an exhaust air heat pump?
- Is an exhaust air heat pump even suitable for a KFW55 house?
ConnyJash
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ConnyJash20 Jan 2022 10:38Hello everyone,
This week, we met with our builder. The following options were proposed:
1. Indoor installation using an exhaust air heat pump (Nibe F750 / no delay or additional costs)
2. Ground source heat pump (additional cost of 15,000€; possibly more if bedrock is encountered / no delay)
3. Alternative locations for the air-to-water heat pump (see below)
We are currently uncertain about which option is best. Ground source heat is only an option for us if the costs are capped, as we did not budget for the extra expenses and prefer not to use up our contingency fund right at the start.
At the moment, we are leaning towards option 3 (alternative location), specifically choice 1. The question is whether these locations are suitable if we maintain the required distances (e.g., 30-40cm (12-16 inches) from the garage and house) or if I might encounter issues such as thermal short-circuiting or increased noise disturbances.
I am open to suggestions and feedback.
Best regards,
ConnyJash
This week, we met with our builder. The following options were proposed:
1. Indoor installation using an exhaust air heat pump (Nibe F750 / no delay or additional costs)
2. Ground source heat pump (additional cost of 15,000€; possibly more if bedrock is encountered / no delay)
3. Alternative locations for the air-to-water heat pump (see below)
We are currently uncertain about which option is best. Ground source heat is only an option for us if the costs are capped, as we did not budget for the extra expenses and prefer not to use up our contingency fund right at the start.
At the moment, we are leaning towards option 3 (alternative location), specifically choice 1. The question is whether these locations are suitable if we maintain the required distances (e.g., 30-40cm (12-16 inches) from the garage and house) or if I might encounter issues such as thermal short-circuiting or increased noise disturbances.
I am open to suggestions and feedback.
Best regards,
ConnyJash
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ConnyJash20 Jan 2022 10:42The setback distance to the neighbor is not being maintained. There is noise disturbance because the building would then be located between two house walls. The architect also states that this is not permitted.
Placement on the boundary line with the neighbor on the right is not possible, as the neighbor does not consent.
Placement on the boundary line with the neighbor on the right is not possible, as the neighbor does not consent.
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ConnyJash20 Jan 2022 10:58We asked whether the outdoor unit can be "mounted." According to the architect, this is not possible. Additionally, the outdoor unit would then hang outside the children's room window.
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Deliverer20 Jan 2022 11:00Is there a reason why all the exhaust directions are to the left or right? Why not away from the house?
And I’ve asked before: why not towards the street? With refrigerant lines, it shouldn’t be a problem to run them under the foundation slab.
By the way, option 1 is not a good option.
And I’ve asked before: why not towards the street? With refrigerant lines, it shouldn’t be a problem to run them under the foundation slab.
By the way, option 1 is not a good option.
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