Gas condensing boiler or brine heat pump

It was a direct response to him - an insurance against damage caused by drilling.

It's kind of stupid because the contractor already had one, but the economy has to survive...

It's called [verfahrensunabhängige Versicherung], costs almost 300 euros...

The supplementary insurance serves only the purpose that in the event of damage occurring, funds are provided immediately without the liability issue being clarified in a lengthy manner. Costs that arise if the drilling company has to drill more extensively are therefore not covered. Here it depends on the wording in the offer.

I would anyway check whether, with his statement "only 4T€ more," he has not already included the subsidy and the missing development costs for the gas.