Buying Whole House Tankless Water Heaters

Admin — Fri, 11 Jun 2010 17:50:44 +0000

As the name suggests, the whole house tankless water heater is designed to serve the hot water requirement of a whole house providing unlimited hot water at different number of fixtures at a time. For example, a single unit can give hot water at two showers or kitchen sink or lavatory or dishwater at the same time. This is a great attraction for large families. The other alternative is the single –point of use units, mostly used by small families.

The main advantage house owners see in a whole house tankless water heater obviously is the low energy cost to run them. One way it saves energy is by saving the standby cost necessary for heating the storage tanks in traditional water heaters. In the case of tankless water heaters, be it whole-house unit or single –point of use unit, there is no storage tank and therefore no standby cost.

American Heat 16 KW Whole House Tankless Water Heater
US $269.00

Tankless Water Heater Olympia 24 KW Whole House New
US $225.00

Tankless Water Heater Olympia 21 KW Whole House New free shipping
US $215.00

Tankless Water Heater Olympia 27 KW Whole House New Free Shipping
US $235.00

American Heat AH-18 Whole House Tankless Water Heater
US $390.00

Marey® 4.2GPM/16L Natural Gas Whole House ON DEMAND Tankless Hot Water Heater
US $296.95

American Heat ADK 16 KW Whole House Tankless Water Heater
US $269.00

Tankless Water Heater Olympia 18 KW Whole House New
US $205.00

Marey Whole House On Demand 4.2 GPM Propane LP Gas 16L Tankless Hot Water Heater
US $296.95

Tankless Hot Water Heater - Natural Gas - 2.7 GPM 3 Bath Whole House - Marey 10L
US $212.50

Tankless Hot Water Heater -Propane Gas - 4.3 GPM 4 Bath Whole House - Marey 16L
US $326.65

Tankless Hot Water Heater -Natural Gas - 4.3 GPM 4 Bath Whole House - Marey 16L
US $326.65

Electric Tankless Hot Water Heater - Instant On Demand - 7 GPM Whole House 27kW
US $544.50

EEMAX three phase tankless water heater for whole house.
US $299.99

Electric Tankless Hot Water Heater - Whole House - EcoSmart 27 - BRAND NEW!
US $499.99

New In Box Rinnai R94LSe Natural Gas Tankless Water Heater 9.4 GPM Whole House
US $750.00

Stiebel Eltron Tempra 20 Plus Electric Tankless Whole House Water Heater, 240 V
US $539.95

Tankless Hot Water Heater -Propane Gas - 2.7 GPM 3 Bath Whole House - Marey 10L
US $230.89

3 GPM ELECTRIC WHOLE HOUSE TANKLESS HOT WATER HEATER
US $429.99

Titan Tankless Water Heater N85 Electric Whole House
US $203.00

Tankless Water Heater Olympia 21 KW Whole House New
US $360.00

OMEGA Tankless Whole House Water Heater (Energy Star)
US $666.00

Electric Tankless Whole House Water Heater No.AE-125
US $799.99

Titan Tankless Hot Water Heater N160 Electric Whole House effecient
US $319.99

Titan Tankless Water Heater N180 Electric Whole House
US $389.95

Bosch Aquastar 2400ES Natural Gas Whole House Tankless Water Heater NIB
US $725.00

Whole House Microtherm TANKLESS Water HEATER Electric RA28 Hot Water ON DEMAND
US $400.00

Tankless Water Heater Olympia 27 KW Whole House New
US $399.00

American Heat ADK-1 Whole House Tankless Water Heater
US $215.00

American Heat AH-21 Whole House Tankless Water Heater
US $448.99

American Heat AH-27 Whole House Tankless Water Heater
US $599.00

Tankless Water Heater --3 bath--whole house--Electric
US $370.00

Eemax EX280T2T Electric Tankless Water Heater WHOLE HOUSE 4 GPM
US $668.00

Eemax EX190TC Electric Tankless Water Heater WHOLE HOUSE 3 GPM
US $439.95

AH-18 - American Heat Whole House Tankless Water Heater 18KW
US $420.00

BOSCH WHOLEHOUSE ELECTRIC TANKLESS WATER HEATER 17kW RP17PT
US $489.99

Titan Niagra Tankless Hot Water Heater N210 Electric Whole House
US $389.95

Titan Niagra Tankless Water Heater N180 Electric Whole House
US $370.00

WHOLE HOUSE 16 LPM - 4.2 GPM PROPANE GAS TANKLESS WATER HEATER ON DEMAND GA16LP
US $315.90

BOSCH WHOLE HOUSE ELECTRIC TANKLESS HOT WATER HEATER
US $729.99

Similarly, both the types function by the same principle. That is, the units heat the cold water, as it enters by a heating element or the heat exchanger. When water enters, the flow of water activates the heat exchanger and when the flow stops the heat exchanger gets deactivated.

So, the tankless water heater operates of its own, heating water as and when needed only. This is unlike a traditional water heater where heating water is a continuous process and therefore more expensive.

The heating exchanger in a tankless water heater can be electric resistance heating coils or gas fired burners. Usually in whole house tankless water heaters, heating exchangers are gas fired burners as they have more heating capacity and therefore more cost efficient than electric resistance heating coils .

Although the whole house tankless water heater is a big advantage to large families, it has certain weaknesses as well. As the number of fixtures is more in the case of whole house tankless water heaters, there is a great impact on the overall flow rate. Because, the volume of water required to heat is large in whole house units.

The flow rate is also influenced by the temperature of the cold water entering the unit and exiting the unit. All this necessitates the use of more than one whole house unit in very large families. As whole house tankless water heaters are costlier than single-point of use tankless water heaters, this force large families opting for whole house tankless water heaters to shell out large amounts for their water heating needs.

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Buying Whole House Tankless Water Heaters