Policy differences per country ensure that one country has a successful roll-out of the technology, while this will be less the case in other countries. In Germany, natural gas is used as a transition fuel, and large groups are connected to natural gas because the initial situation in Germany is completely different than in the Netherlands. Roughly half of the German households now use natural gas. About 14% of German households are connected to a heat network, 5% have electrical heating. In addition, a quarter of Germany burns fuel oil, and in the residual group, there are still households using propane and even on coal. A large proportion of households that use natural gas or fuel oil use outdated technology with low efficiency. By switching to a natural gas boiler in Germany first, a significant step has already been taken in light of the climate objectives.
In the Netherlands, about 90% of homes are already heated using a natural gas central heating boiler. In the Netherlands, the next step is to stop using natural gas altogether, but electrification makes the transition in the Netherlands slow and expensive, because the grid infrastructure needs a big upgrade. Cooll's solution is unique in its simplicity: replacing the condensing boiler with a thermodynamic heat pump consumes less gas, saves CO2 emissions, and is ready for the transition to biogas or hydrogen.