On Demand Tankless Water
Heaters: also known as instantaneous water heaters.
On Demand (tankless or instantaneous) water
heaters
Heat
water directly without the use of a storage tank.
On
demand tankless water heaters do not contain a storage tank
like conventional water heaters. A gas burner or electric
element heats water only when there is a demand for hot
water. Hot water never runs out, but the flow rate (gallons
of hot water per minute) may be limited. By eliminating
standby losses from the tank, energy consumption can be
reduced by 10-15%. Before rushing out to buy a demand water
heater, be aware that they are not appropriate for every
situation.
Here are some of the factors to
consider:
Do
you use hot water efficiently? Have you installed modern,
low-flow faucets and showerheads? Tankless water heaters
perform much better when coupled with efficient
uses.
Consider
your water distribution system. If the hot water uses in
your home are relatively close together, with short hot
water lines between them, a tankless system may work for
you. In many U.S. homes, water uses are widely spaced at
opposite ends of the house. If this is the case in your
home, a tankless system may not meet your
needs.
If
you have installed high efficiency fixtures and your water
lines are not too long, consult an experienced contractor to
find out if your gas supply is adequate and proper venting
is feasible.
Finally,
residential wiring generally will not support a tankless
electric water heater with large enough capacity to serve
multiple uses. If you rely on electricity to heat your
water, a tankless system is unlikely to meet your needs. At
most, an electric unit may be appropriate for small
applications, such as a remote bathroom without a bath
tub.
If
you choose an on demand tankless water heater, look for
a gas-fired model eligible for 2006-2007 federal tax
credits, at least an Energy Factor (EF) of 0.80. To learn
more about tankless water heaters, visit these
manufacturers' sites.
Call Magic Plumbing, The San
Francisco Plumbing Professionals
For A Free On Demand Tankless Water Heater Estimate, And Save
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Use Tankless Water Heaters
Save on Energy Bills
A device like a tankless water heater provides hot water at a
preset temperature whenever you need. Since there is no
provision for storage the mechanism of a tankless water heater
substantially reduces or eliminates standby losses. Unlike a
conventional storage tank water heater, a tankless water heater
starts to heat water only on demand. It has a heating device
that is automatically triggered by the flow of water when the
hot water valve is turned on. Once it gets activated, the
heater delivers an uninterrupted supply of hot water. You can
run it for as long as you need to at a stretch without the
water going cold.
Read the complete
article...
 
Shopping for a tankless water heater try iTankless
online
Brand
Website
Bosch
(Aquastar)
www.boschhotwater.com
866-330-2725
Bradford
White
www.bradfordwhite.com
800-523-2931
Eccotemp
www.eccotemp.com
866-356-1992
Infinion
www.tanklesswaterheaters.com
800-873-3507
Monitor
Products
www.monitorproducts.com
800-524-1102
Noritz
www.noritzamerica.com
866-766-7489
Paloma
www.palomawaterheaters.com
800-873-3507
Rheem
/ Ruud
www.rheemtankless.com
866-720-2076
Rinnai
www.foreverhotwater.com
866-746-6241
Takagi
www.takagi.com
888-882-5244
Toyotomi
www.toyotomiusa.com
203-775-1909
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