ᐅ Air-to-Water Heat Pump for Single-Family Home with Basement – 150 m² Living Area
Created on: 28 Sep 2020 09:52
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exto1791
Hello everyone,
We are currently in the planning and decision-making phase and need to choose a company.
Now, regarding the topic: air-to-water heat pumps.
Unfortunately, the general contractors are not sufficiently knowledgeable and can barely answer detailed questions here. I will also be meeting with a heating installer soon to get advice on this matter.
Nevertheless, the two companies offer two different models included in their proposals. For comparison, the following questions come to mind for me:
1. Are both air-to-water heat pumps eligible for BAFA funding?
2. Which air-to-water heat pump is generally better suited for our single-family home?
3. Which estimated value of the pumps should be considered higher, since I need to bring both offers to the same level?
The following models were offered to me:
Viessmann Vitocal 200-S and Viessmann Vitocal 300-A (AWO-AC 301.B)
I appreciate any information!
We are currently in the planning and decision-making phase and need to choose a company.
Now, regarding the topic: air-to-water heat pumps.
Unfortunately, the general contractors are not sufficiently knowledgeable and can barely answer detailed questions here. I will also be meeting with a heating installer soon to get advice on this matter.
Nevertheless, the two companies offer two different models included in their proposals. For comparison, the following questions come to mind for me:
1. Are both air-to-water heat pumps eligible for BAFA funding?
2. Which air-to-water heat pump is generally better suited for our single-family home?
3. Which estimated value of the pumps should be considered higher, since I need to bring both offers to the same level?
The following models were offered to me:
Viessmann Vitocal 200-S and Viessmann Vitocal 300-A (AWO-AC 301.B)
I appreciate any information!
exto1791 schrieb:
Now, to be honest:
Before I sign a contract or am about to finalize everything with a company and want to make a decision:
Shouldn't I know exactly which model will be used and what the heating load is in general for my single-family house?In theory, yes, but in practice, this is rarely possible. It may also depend on the construction method. However, at the time of awarding the contract, you often do not have all the planning details yet. The question is also who will perform the room-by-room heating load calculation. Of course, you can have this done yourself. Ideally, you should already have an energy performance calculation based on the energy saving regulations to obtain the data for the building components, etc.
face26 schrieb:
In theory yes, but rarely possible in practice. It may also depend on the construction method. However, at the time of contract award, you often don’t have all the detailed planning completed. The question is also who will perform the room-by-room heating load calculation. Of course, you can have it done. Ideally, you should already have an energy saving regulation calculation regarding the values of the building components, etc. Yes, I understand the general contractor too. Before the effort and costs become excessive (and they don’t even have a signed contract yet), no calculations will be made. Nevertheless, as a client I do wonder:
Who guarantees that the price won’t increase after the offer is finalized? “Oh, we actually need a different air-to-water heat pump; the base price from back then is no longer sufficient,” etc. I can’t protect myself against this at all, and perhaps I’ll end up getting a standard air-to-water heat pump that I don’t even want? The air-to-water heat pump I might actually want costs $3,000 more, which they will obviously try to charge me for...
Yesterday, just for fun, we visited a model home exhibition near us to get some inspiration for interior design and such.
Since we are still far from being "satisfied" with our heating and ventilation setup, we took a closer look behind the scenes there as well:
One company is currently installing a combined heating and ventilation system from Stiebel Eltron – an indoor unit (without an outdoor component) – an air-to-water heat pump plus ventilation system in a single device.
Is this type of system any good? Does anyone have experience with it?
Since we are still far from being "satisfied" with our heating and ventilation setup, we took a closer look behind the scenes there as well:
One company is currently installing a combined heating and ventilation system from Stiebel Eltron – an indoor unit (without an outdoor component) – an air-to-water heat pump plus ventilation system in a single device.
Is this type of system any good? Does anyone have experience with it?
That should be the model: Stiebel Eltron LWZ 5S PLUS.
How does the funding or cost coverage actually work?
An air-to-water heat pump usually costs around €10,000–15,000 (about $11,000–16,500), but in the offers we receive for BaFa-subsidized units, the total cost is around €30,000 (about $33,000). Are the installation and other related costs really that high?
How does the funding or cost coverage actually work?
An air-to-water heat pump usually costs around €10,000–15,000 (about $11,000–16,500), but in the offers we receive for BaFa-subsidized units, the total cost is around €30,000 (about $33,000). Are the installation and other related costs really that high?
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nordanney5 Oct 2020 10:27exto1791 schrieb:
Are the installation costs, etc., really that high?The system you mentioned is not just heating but also a controlled residential ventilation system. The costs usually include underfloor heating and ventilation ductwork. However, the installer still makes a very good profit.nordanney schrieb:
The model you mentioned is not just a heating system but also a mechanical ventilation with heat recovery. The costs usually include underfloor heating and ventilation ductwork. However, the installer still makes a good profit. Yes, that’s true – it wasn’t necessarily referring to that specific model.
As I said, we also have quotes for air-to-water heat pumps Viessmann 200-S or 300A, roughly estimated at 30,000€ (about $32,000). Apparently, the subsidy applies to the full 30,000€. But if, for example, the 200-S only costs around 12,000€ (about $13,000), is the piping and installation really that expensive? I don’t get any subsidies for the underfloor heating!
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