New buildings are highly insulated, and the heating demand is very low. Combined with the factory's production processes, the best possible efficient heating option can be chosen.
Generally, old buildings are not well-insulated. In case of higher temperatures in the building, the efficiency of heat pumps decreases, and hence it does not provide the desired result. Draft strips can be used to decrease heating demand and improve heating efficiency in older buildings. Furthermore, hybrid options (gas heaters/water boilers + heat pumps) can be an ideal heating solution for old buildings.