Additional anecdata, my landlord will replace the old oil-based boiler with a gas-powered one in ~ two months. Gas is sadly not dead, even in "new" installs. :D

Additional anecdata, my landlord will replace the old oil-based boiler with a gas-powered one in ~ two months. Gas is sadly not dead, even in "new" installs. :D (And jacks the rent up 30 euros per month because of it, while the "official" estimated monthly savings on the heating bill are 0.1 cent (yes, cent, not euros) per month per m², probably negative now, amazing ^^')