ᐅ Heat pump suitable for underfloor heating, solid construction, 200 m², no gas connections available

Hello,
we are currently planning our house.

It will be one and a half stories with a basement. It will be built using solid construction.

The basement, ground floor, and upper floor are all planned to be heated.

The total living area will be about 200 square meters (2,153 square feet). Underfloor heating will be installed throughout the entire house.

The house will be built in an area without a natural gas connection, so the only option for gas would be to rent gas tanks. We definitely do not want to use oil.

Our preferred heating system would be a heat pump.

Can you recommend any? Alternative energy sources are also welcome.

Best regards

Hello,

Finisher schrieb:
...The house is being built in an area without a natural gas connection, so the only option would be to rent gas tanks. We definitely do not want oil.

For gas or equivalent conventional heat generators, it is usually mandatory to purchase a solar thermal system with low economic efficiency for single-family homes. A more cost-effective approach here is better insulation following the 15% rule. Liquid propane gas is generally an expensive option.
For conventional combustion-based heat generators, consumption is always higher than demand, so the achievable annual efficiency plays an important role.

Finisher schrieb:
...Ideally, we would prefer a heat pump.

In this case, consumption is lower than demand. Therefore, from an economic perspective, insulation requirements are less demanding.
However, careful and precise planning of the entire system is particularly important here. If this is neglected, costs can quickly escalate, and the theoretically high efficiency cannot be realized in practice. This is a common issue currently, especially with general contractors’ or design-build systems.

Finisher schrieb:
...Can you recommend any? Alternative energy sources are also welcome.

For this, the specific conditions of the construction project need to be known; anything else would be a guess into a very unclear future.
In principle, air-source heat pumps, ground-source heat pumps, and less commonly water-source heat pumps are considered.
First, the actual demand (capacity, energy) for heating and hot water should be calculated. In connection with the chosen solution, this will determine the actual consumption, which then allows for a sensible evaluation of the investment.

Best regards.

Hello Euro,

Thank you very much for your feedback.

How can I best determine the actual demand?

- The area to be heated is approximately 200 m² (2,150 sq ft), with the basement (60 m² (645 sq ft)) not always heated
- There are 4 people living in the house
- Water storage tank of about 400 liters (105 gallons)
- Construction site in Baden-Württemberg, Heilbronn district

Finisher schrieb:
...How can I best determine the actual demand?

I think it is hardly feasible for a layperson. Even professionals often face significant difficulties with this. It is better to leave such tasks to an expert and focus your own work on areas where there is less risk of making serious mistakes. Among other things, a building “framework” is definitely needed, where the geometry and building components are clearly defined.

Finisher schrieb:
...
- Hot water storage tank approx. 400l (105 gallons)

How do you arrive at that figure if the output of the heat generator is unknown?

Best regards.

Does anyone know the Thermia Atec air-to-water heat pump? Is it good? What are its advantages and disadvantages?

Erik_IEU schrieb:
Hello,
here is a link to a test from Sweden on the Thermia Atec heat pump, which confirms good results for this heat pump ....

How naive can one be? A manufacturer can never guarantee an annual performance factor because the specific design of the building is completely unknown to them. Anyone who disagrees can try to get an annual performance factor guaranteed by contract.

Best regards