Underfloor heating despite the Energy Saving Ordinance 2009, replacement of normal radiators

Hello everyone,

a quick (hopefully not silly) question: We are currently having a terraced end house built according to the Energy Saving Ordinance 2009. The house is heated with a gas condensing boiler and standard "normal" radiators. We are now considering replacing these "normal" radiators with underfloor heating (throughout the entire house).

Our thoughts on this: 1) The gas condensing boiler is probably more efficient then. 2) We could probably integrate the solar thermal system with the underfloor heating at a later date. 3) We are prepared for a later time and more modern heating concepts (heat pump or similar).

Key points: 1) The costs: 10,000 euros extra is not a small amount of money. 2) The house does not have a KFW-XY rating. So we wonder whether the house is energetically "that old" that the idea of a more modern heating concept already fails on other things than the underfloor heating.

Does anyone have helpful hints on this?

Best regards and thanks,

Perouse2012 PS: Additionally, there is a wood stove (without connection to the heating).

Hello,

An additional cost of €10,000 from "normal" radiators to underfloor heating would be a very steep surcharge. That can't really be the case. And if so, keep in mind that the underfloor heating, for example, should be installed close enough together to possibly use a different heat generator (heat pump) efficiently later on. If the house is properly insulated, one could possibly consider a heat pump right away?

Regards...

Hello Cascada,
thanks for the response! Unfortunately, the additional cost is no joke, EG 5k, OG 2.5k, DG 2.5k extra charge. Mixed system (conventional and underfloor heating) doesn't make sense, so all in all it makes 10k. We've also considered a heat pump, but it will be difficult since the heating installation is currently planned for the DG...

At the moment we will probably leave it as it is, 10k is simply an outrageously high surcharge

Hello,

...
Our thoughts on this:...
2) We could probably combine the solar thermal system with the underfloor heating at a later date
3) We are prepared for a later time and more modern heating concepts (heat pump or similar).

Point 2) does not make economic sense for a single-family house. For hot water, with gas condensing technology, a solar thermal system must be forcibly "purchased along." However, this could also be avoided with better insulation. It makes sense anyway with a conventional heat generator.
Point 3) Completely correct, one should not forgo that

...Key points:
1) The costs: 10,000 euros extra is not a small amount

An outrage. :mad:
I would cancel the supplier!

Best regards

Hi €ruo,

thanks for your reply! Condensing gas boiler and solar thermal system?
Regarding canceling: Not possible anymore due to carelessness (previously not informed about the price of optional equipment) (contract already signed).

Best regards..

.... Gas condensing boiler and solar thermal system?

- Gas condensing boiler - Solar thermal system

... Is .... no longer possible (contract already signed).

I suspected that. Still, good luck with the construction contract.

Best regards