Wanderport Corp (WDRP)

[anian]

Expected life of tankless water heaters is 20 years, compared with between 10 and 15 years for tank-type water heaters.

http://www.toolbase.org/Technology-Inventory/Electrical-Electronics/tankless-water-heaters

To take care of the initial costs and ease of implementation.

Wanderport's doesn't need an updated electrical panel as it lists a 30 amp circuit which is the same as a tank electric.
Standard electric water heaters typically require a 25- to 30-amp circuit breaker.
http://www.srpnet.com/energy/tankless.aspx

Sounds like beer drinking plumbers might go out of work.

I can't wait to see the costs compare. The microwave is 99% efficient as listed in Wanderport's spec sheet. Should be around an electric heat pump.

1. Purchase costs include our best estimates of installation labor and do not include financial incentives.
USA Federal Tax Credits for Consumer Energy Efficiency 30% OFF
http://www.energystar.gov/index.cfm?c=tax_credits.tx_index
2. Operating cost based on hot water needs for typical family of four and energy costs of 9.5¢/kWh for electricity, $1.40/therm for gas, $2.40/gallon for oil.
3. Future operating costs are neither discounted nor adjusted for inflation.
4. Currently, there is too little data to accurately estimate life expectancy for tankless water heaters, but preliminary data shows that tankless water heaters could last up to 20 years. For all water heaters, life expectancy will depend on local variables such as water chemistry and homeowner maintenance.

Demand gas (no pilot) 4 (TANKLESS) Water Heater Type
0.8 Efficiency (EF)
$1,600 Installed Cost 1
$262 Yearly Energy Cost 2
13 Life (years)
$5,008 Total Cost (Over 13 Years) 3

Electric heat pump water heater Water Heater Type
2.2 Efficiency (EF)
$1,660 Installed Cost 1
$190 Yearly Energy Cost 2
13 Life (years)
$4,125 Total Cost (Over 13 Years) 3

Conventional gas storage Water Heater Type
0.6 Efficiency (EF)
$850 Installed Cost 1
$350 Yearly Energy Cost 2
13 Life (years)
$5,394 Total Cost (Over 13 Years) 3

High-efficiency gas storage Water Heater Type
0.65 Efficiency (EF)
$1,025 Installed Cost 1
$323 Yearly Energy Cost 2
13 Life (years)
$5,220 Total Cost (Over 13 Years) 3
Condensing gas storage Water Heater Type
0.86 Efficiency (EF)
$2,000 Installed Cost 1
$244 Yearly Energy Cost 2
13 Life (years)
$5,170 Total Cost (Over 13 Years) 3

Conventional oil-fired storage Water Heater Type
0.55 Efficiency (EF)
$1,400 Installed Cost 1
$654 Yearly Energy Cost 2
8 Life (years)
$11,299 Total Cost (Over 13 Years) 3

Minimum Efficiency electric storage Water Heater Type
0.9 Efficiency (EF)
$750 Installed Cost 1
$463 Yearly Energy Cost 2
13 Life (years)
$6,769 Total Cost (Over 13 Years) 3

High-eff. electric storage Water Heater Type
0.95 Efficiency (EF)
$820 Installed Cost 1
$439 Yearly Energy Cost 2
13 Life (years)
$6,528 Total Cost (Over 13 Years) 3




Solar with electric back-up Water Heater Type
1.2 Efficiency (EF)
$4,800 Installed Cost 1
$175 Yearly Energy Cost 2
13 Life (years)
$7,072 Total Cost (Over 13 Years) 3

http://www.aceee.org/Consumerguide/waterheating.htm