Abstract
A laboratory test experiment was conducted to measure the energy performance of two different types of water heaters--electric storage tank and demand (tankless)--in two types of plumbing distribution systems--copper piping in a tree configuration and cross-linked polyethylene (PEX) piping in a parallel configuration. Two water-usage patterns were used in the week-long experiments and in theannual simulations: one representing a high-usage home and the other representing a low-usage home. Results of weekly performance testing and annual simulations of electric water-heating systems are presented.
| Original language | American English |
|---|---|
| Publisher | National Laboratory of the Rockies (NLR) |
| Number of pages | 61 |
| State | Published - 2003 |
Bibliographical note
Work performed by NAHB Research Center, Upper Marlboro, MarylandNLR Publication Number
- NREL/SR-550-32922
Keywords
- copper piping in tree configuration
- cross-linked polyethylene piping
- demand water storage
- electric storage tank
- residential hot water systems
- water-heating systems
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