Water Heater Life Cycle Cost Analysis

The main goal of this study is to determine the influence of scale on the energy and cost performance of different transitional membrane bioreactors mbr in decentralized wastewater treatment wwt systems by performing a life cycle assessment lca and cost analysis.

Water heater life cycle cost analysis.

Computing life cycle cost based on net present value assists project managers and clients to decide critically between alternatives. Lifecycle cost comparison of five different water heaters. 2 500 installed cost in 2007 retrofit 84 energy factor. The 20 first year allowance for ongoing maintenance assumes you have an existing service contract and will add the water heater to an already existing list.

Tony wong and jonathan leber keywords. Lifetime energy cost is the sum of the discounted value of the annual energy costs based on assumed water heater life of 13 years. Life cycle cost of electric instantaneous electric storage natural gas instantaneous natural gas storage and heat pump water heaters is estimated as 9005 au 12 724 au 6955 au 7479 au and 8098 au respectively and tabulated in table 4. Each water heater is being used to heat 50 gal.

In this paper the basics of solar water heaters swh life cycle costs analysis are discussed and the most popular types for greece are examined. Here are the life cycle costs for a propane fired tankless heater. The essential part of any life cycle analysis for water networks is accurately estimating the life time performance of the pipes that make up the network including their expected failures repairs and eventual replacement and the associated costs both direct and indirect for each stage. Future electricity price trends and a discount rate of 3 2 are based on federal guidelines.

Installation cost estimates for tank type water heaters. The maintenance cost of 45 year for the tankless water heaters is for annual descaling and is based on actual project costs. Therefore we focused in our comparison on the electricity consumption and cost during the life cycle of the water heater. Life cycle costs are formed and the possibilities.

The product selected for this analysis is a single gas water heater with a useful power between 7 and 19 2 kw a capacity of up to 11 l min of water an electronic ignition powered by a hydrogenerator and a declared load profile m for the energy required for the hot water production according to the eu regulations 812 2013 supplementing directive 2010 30 ue and 814 2013 implementing. The estimated life for a tank type water heater is 13 years and the estimated life for a tankless water heater is 20 years usdoe 2008. Electricity cost is always the highest cost at the life cycle cost of the building. Heat pump water heaters created date.