You can not use the cost of the water heater as a guide to the cost of the installation! Every job is different. With new technology today makes installation two to three times more difficult than in 1960's.
dramatic play - a dramatic work intended for performance by actors on a stage; he wrote several plays but only one was produced on Broadway. drama, play. drama - the literary genre of works intended for the theater. stage direction - an instruction written as part of the script of a play. dramatic composition, dramatic work - a play for performance on the stage or television or in a movie etc.
drama noun (THEATRE) B1 [ C or U ] a play in a theatre or on television or radio, or plays and acting generally: She's starred in several TV dramas. He's the drama critic for the Times.