Just wondering what standard cost is on vertical install using 3 inch pipe. Pipe lenths are one 5', one 3' and one 1' section, plus thimble and other accessories ( cap, collars, stove adapter, storm collar, flashing, etc) Had my stove installed and cost of materials was higher than what I expected. This includes no labor. When questioning the dealer, I was told this is standard cost. My cost was $375.00. Is this reasonable?