I recently looked at a DHW system at a local hotel. This was the third time we have visited this hotel to look at the mechanical rooms over the last in the last 20 years. The hotel is owned by a well-known national chain. We were the primary contractor on the last two visits, but this time, we would be working as a subcontractor.
The current DHW system consists of three hot water makers, each rated at 2 MBtu input (total Btu input is 6 million). The hot water makers are set to provide 160° F water to the three hot water storage tanks. The larger storage tank has an 800-gallon storage capacity, and the other two smaller tanks hold 400 gallons a piece (total storage is 1,600 gallons).
