Heat loss system design and system load calculations for all new installations must be performed prior to the installation. The licensee must supply a copy to the owner and the licensee must retain a copy of the heat loss system design and system load calculations such that it may be produced for inspection upon request of a Board inspector.
A heat loss and/or load calculation must be conducted before replacement. The heat loss and/or load calculation may be obtained from the original design plans. The licensee must retain a copy of the heat loss system design or system load calculations and produce it for inspection upon request of a Board inspector.
02-658 C.M.R. ch. 9, § 7