To limit the probability that the trade-off path will be used for buildings where there is insufficient information to accurately assess the building using the trade-off option, which could lead to overestimation of the efficiency of the SWH system, which could lead to unnecessary consumption of energy for service hot water heating, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.
To limit the probability that the trade-off path will be used for a type of SWH system that has not been assessed, which could lead to overestimation of the efficiency of the SWH system, which could lead to unnecessary consumption of energy for service hot water heating, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.
To limit the probability that the trade-off path will be used for a type of energy source for the SWH system that has not been assessed, which could lead to overestimation of the efficiency of the SWH system, which could lead to unnecessary consumption of energy for service hot water heating, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.