Gas Tankless Water

Vending  Concession Tankless Hot Water Heater Propane Gas 15 GPM
Vending Concession Tankless Hot Water Heater Propane Gas 15 GPM
$118.95
Time Remaining: 29d 13h 35m
Buy It Now for only: $118.95

Propane Gas RV Tankless Hot Water Heater 15 GPM Instant On Demand 2012
Propane Gas RV Tankless Hot Water Heater 15 GPM Instant On Demand 2012
$118.95
Time Remaining: 4h 11m
Buy It Now for only: $130.85

Marey 14GPM GA5PORT Portable LP Gas Tankless Hot Water Heater On Demand 5LPM
Marey 14GPM GA5PORT Portable LP Gas Tankless Hot Water Heater On Demand 5LPM
$118.95
Time Remaining: 21d 13h 29m
Buy It Now for only: $118.95

Bosch Natural Gas High Output Tankless Water Heater EVOLUTION500 NG NEW
Bosch Natural Gas High Output Tankless Water Heater EVOLUTION500 NG NEW
$739.99
Time Remaining: 2d 16h
Buy It Now for only: $739.99

Marey GA10NG On Demand Natural Gas Tankless Hot Water Heater 27GPM 10LPM 2012
Marey GA10NG On Demand Natural Gas Tankless Hot Water Heater 27GPM 10LPM 2012
$209.90
Time Remaining: 4h 12m
Buy It Now for only: $230.89

Tankless Hot Water Heater Natural Gas 43 GPM 4 Bath Whole House Marey 16L
Tankless Hot Water Heater Natural Gas 43 GPM 4 Bath Whole House Marey 16L
$296.95
Time Remaining: 27d 1h 56m
Buy It Now for only: $296.95

Rinnai RC80i Condensing Tankless Water Heater High Efficiency Indoor Natural Gas
Rinnai RC80i Condensing Tankless Water Heater High Efficiency Indoor Natural Gas
$900.99
Time Remaining: 27d 23h 44m
Buy It Now for only: $900.99

Marey GA16LP On Demand Propane Gas Tankless Hot Water Heater 43Gpm 16Lpm 2012
Marey GA16LP On Demand Propane Gas Tankless Hot Water Heater 43Gpm 16Lpm 2012
$296.95
Time Remaining: 4h 12m
Buy It Now for only: $326.65

Tankless Hot Water Heater Propane Gas 43 GPM 4 Bath Whole House Marey 16L
Tankless Hot Water Heater Propane Gas 43 GPM 4 Bath Whole House Marey 16L
$296.95
Time Remaining: 29d 5h 30m
Buy It Now for only: $296.95

Marey GA10LP Propane LP Gas On Demand Tankless Hot Water Heater 27Gpm 10Lpm
Marey GA10LP Propane LP Gas On Demand Tankless Hot Water Heater 27Gpm 10Lpm
$209.90
Time Remaining: 1d 16h 17m
Buy It Now for only: $209.90

Marey GA16NG On Demand Natural Gas Tankless Hot Water Heater 43GPM 16LPM 2012
Marey GA16NG On Demand Natural Gas Tankless Hot Water Heater 43GPM 16LPM 2012
$296.95
Time Remaining: 4h 12m
Buy It Now for only: $326.65

Rinnai RV53i Internal Natural Gas Tankless Water Heater
Rinnai RV53i Internal Natural Gas Tankless Water Heater
$631.99
Time Remaining: 29d 23m
Buy It Now for only: $631.99

PALOMA PTG2 42PVP TANKLESS GAS WATER HEATER NEW
PALOMA PTG2 42PVP TANKLESS GAS WATER HEATER NEW
$395.95
Time Remaining: 29d 13h 41m
Buy It Now for only: $395.95

Marey 14GPM GA5PORT Portable LP Gas Tankless Hot Water Heater On Demand 5LPM
Marey 14GPM GA5PORT Portable LP Gas Tankless Hot Water Heater On Demand 5LPM
$118.95
Time Remaining: 5h 27m
Buy It Now for only: $130.85

Reducing Valve Regulator+ 8L LPG GAS TANKLESS INSTANT HOT WATER HEATER STAINLESS
Reducing Valve Regulator+ 8L LPG GAS TANKLESS INSTANT HOT WATER HEATER STAINLESS
$138.00
Time Remaining: 15d 13h 13m
Buy It Now for only: $138.00

Rinnai Condensing Tankless Water Heater Internal Natural Gas RC98iN
Rinnai Condensing Tankless Water Heater Internal Natural Gas RC98iN
$1,258.99
Time Remaining: 6d 15h 24m
Buy It Now for only: $1,258.99

Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
$159.99
Time Remaining: 6h 51m
Buy It Now for only: $175.99

NATURAL GAS TANKLESS WATER HEATER 16 L with Power Vent
NATURAL GAS TANKLESS WATER HEATER 16 L with Power Vent
$349.95
Time Remaining: 2d 9h 48m
Buy It Now for only: $349.95

Rheem EcoSense 95 GPM 199900 BTU Natural Gas Outdoor Tankless Water Heater
Rheem EcoSense 95 GPM 199900 BTU Natural Gas Outdoor Tankless Water Heater
$1,150.00
Time Remaining: 28d 13h 55m
Buy It Now for only: $1,150.00

Natural Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 27 GPM 10L
Natural Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 27 GPM 10L
$209.90
Time Remaining: 8h 2m

ON DEMAND NATURAL GAS TANKLESS WATER HEATER 32 GPM 12L
ON DEMAND NATURAL GAS TANKLESS WATER HEATER 32 GPM 12L
$259.90
Time Remaining: 22d 12h 18m
Buy It Now for only: $259.90

AOSmith Rinnai R98LSi N Tankless Indoor Water Heater 98 GPM Natural Gas
AOSmith Rinnai R98LSi N Tankless Indoor Water Heater 98 GPM Natural Gas
$764.99
Time Remaining: 12d 7h 29m
Buy It Now for only: $764.99

Propane Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 27 GPM 10L
Propane Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 27 GPM 10L
$209.90
Time Remaining: 8h 2m

AQUAH DIRECT VENT NATURAL GAS TANKLESS GAS WATER HEATER
AQUAH DIRECT VENT NATURAL GAS TANKLESS GAS WATER HEATER
$389.50
Time Remaining: 17d 14h 21m
Buy It Now for only: $389.50

Rinnai RC80e Condensing Tankless Water Heater High Efficiency Outdoor NG Gas
Rinnai RC80e Condensing Tankless Water Heater High Efficiency Outdoor NG Gas
$849.99
Time Remaining: 27d 23h 55m
Buy It Now for only: $849.99

Tankless Hot Water Heater Natural Gas 27 GPM 3 Bath Whole House Marey 10L
Tankless Hot Water Heater Natural Gas 27 GPM 3 Bath Whole House Marey 10L
$209.90
Time Remaining: 29d 13h 10m
Buy It Now for only: $209.90

Propane Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 43 GPM 16L
Propane Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 43 GPM 16L
$296.95
Time Remaining: 8h 2m

Tankless Water Heater Propane or Natural Gas
Tankless Water Heater Propane or Natural Gas
$64.99
Time Remaining: 15d 6h 38m
Buy It Now for only: $64.99

RINNAI C85eN NATURAL GAS TANKLESS WATER HEATER NEW
RINNAI C85eN NATURAL GAS TANKLESS WATER HEATER NEW
$509.00
Time Remaining: 15d 24m
Buy It Now for only: $509.00

Natural Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 43 GPM 16L
Natural Gas Tankless Hot Water Heater HIGH QUALITY LOW PRICE 43 GPM 16L
$296.95
Time Remaining: 8h 2m

AOSmith Rinnai R75LSi N Tankless Indoor Water Heater 75 GPM Natural Gas
AOSmith Rinnai R75LSi N Tankless Indoor Water Heater 75 GPM Natural Gas
$679.99
Time Remaining: 12d 7h 30m
Buy It Now for only: $679.99

BRAND NEW 6L GAS LPG PROPANE TANKLESS INSTANT HOT WATER HEATER BOILER
BRAND NEW 6L GAS LPG PROPANE TANKLESS INSTANT HOT WATER HEATER BOILER
$112.00
Time Remaining: 21d 19h 12m
Buy It Now for only: $112.00

ON DEMAND TANKLESS WATER HEATER NATURAL GAS 10L 265GPM
ON DEMAND TANKLESS WATER HEATER NATURAL GAS 10L 265GPM
$199.95
Time Remaining: 11h 15m
Buy It Now for only: $219.95

Rinnai R75LSe Natural Gas Tankless Water Heater 75 GPM
Rinnai R75LSe Natural Gas Tankless Water Heater 75 GPM
$599.95
Time Remaining: 25d 3h 17m
Buy It Now for only: $599.95

Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
$159.99
Time Remaining: 2d 5h 38m
Buy It Now for only: $159.99

ON DEMAND NATURAL GAS TANKLESS WATER HEATER 32 GPM 12L
ON DEMAND NATURAL GAS TANKLESS WATER HEATER 32 GPM 12L
$244.95
Time Remaining: 11h 18m
Buy It Now for only: $269.95

EZ 101 Tankless Water Heater LP Liquid Propane Gas  Up to 20 GPM
EZ 101 Tankless Water Heater LP Liquid Propane Gas Up to 20 GPM
$135.00
Time Remaining: 22d 5h 40m
Buy It Now for only: $135.00

NEW NAVIEN NR 210A NATURAL GAS TANKLESS WATER HEATER
NEW NAVIEN NR 210A NATURAL GAS TANKLESS WATER HEATER
$1,266.88
Time Remaining: 22d 7h 55m
Buy It Now for only: $1,266.88

Marey GA10LP On Demand Propane Gas Tankless Hot Water Heater 27Gpm 10Lpm 2012
Marey GA10LP On Demand Propane Gas Tankless Hot Water Heater 27Gpm 10Lpm 2012
$209.90
Time Remaining: 11h 29m
Buy It Now for only: $230.89

NEW NAVIEN NR 240A NATURAL GAS TANKLESS WATER HEATER
NEW NAVIEN NR 240A NATURAL GAS TANKLESS WATER HEATER
$1,399.88
Time Remaining: 22d 7h 55m
Buy It Now for only: $1,399.88

AquaStar Natural Gas Tankless Water Heater 2400ES NG NEW
AquaStar Natural Gas Tankless Water Heater 2400ES NG NEW
$599.99
Time Remaining: 9d 5h 20m
Buy It Now for only: $599.99

Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
Marey GA5NG On Demand Natural Gas Tankless Hot Water Heater 13Gpm 5Lpm 2012
$159.99
Time Remaining: 11h 47m
Buy It Now for only: $175.99

RV Tankless Hot Water Heater Propane Gas 15 GPM On Demand FREE FEDEX
RV Tankless Hot Water Heater Propane Gas 15 GPM On Demand FREE FEDEX
$118.95
Time Remaining: 29d 23h 10m
Buy It Now for only: $118.95

RINNAI R85eN PLUS NATURAL GAS TANKLESS WATER HEATER NEW CAN CONVERT TO PROPANE
RINNAI R85eN PLUS NATURAL GAS TANKLESS WATER HEATER NEW CAN CONVERT TO PROPANE
$519.00
Time Remaining: 5d 5h 17m
Buy It Now for only: $519.00

AQUAH INDOOR ON DEMAND PROPANE GAS TANKLESS WATER HEATER 16 L 423 GPM
AQUAH INDOOR ON DEMAND PROPANE GAS TANKLESS WATER HEATER 16 L 423 GPM
$299.99
Time Remaining: 12h 20m
Buy It Now for only: $329.99

INSTANT ON DEMAND 10L PROPANE GAS TANKLESS WATER HEATER
INSTANT ON DEMAND 10L PROPANE GAS TANKLESS WATER HEATER
$224.95
Time Remaining: 23d 4h 40m
Buy It Now for only: $224.95

BRAND NEW NATURAL GAS TANKLESS WATER HEATER 423 GPM
BRAND NEW NATURAL GAS TANKLESS WATER HEATER 423 GPM
$294.95
Time Remaining: 16d 12h 48m
Buy It Now for only: $294.95

AQUAH INDOOR ON DEMAND NATURAL GAS TANKLESS WATER HEATER 12L 32 GPM
AQUAH INDOOR ON DEMAND NATURAL GAS TANKLESS WATER HEATER 12L 32 GPM
$249.95
Time Remaining: 12h 21m
Buy It Now for only: $274.95

Outdoor Rinnai Tankless Water Heater Propane Gas 94
Outdoor Rinnai Tankless Water Heater Propane Gas 94
$1,069.00
Time Remaining: 3d 6h 41m
Buy It Now for only: $1,069.00

BRAND NEW 12L LPG GAS TANKLESS INSTANT HOT WATER HEATER STAINLESS
BRAND NEW 12L LPG GAS TANKLESS INSTANT HOT WATER HEATER STAINLESS
$189.00
Time Remaining: 28d 18h 57m
Buy It Now for only: $189.00

Rinnai RC80iN 96 Efficient Tankless Water Heater Internal Natural Gas
Rinnai RC80iN 96 Efficient Tankless Water Heater Internal Natural Gas
$975.00
Time Remaining: 29d 35m
Buy It Now for only: $975.00

AQUAH ON DEMAND PROPANE GAS TANKLESS WATER HEATER 10L 265 GPM
AQUAH ON DEMAND PROPANE GAS TANKLESS WATER HEATER 10L 265 GPM
$199.99
Time Remaining: 12h 23m
Buy It Now for only: $224.95

BRAND NEW NATURAL GAS TANKLESS WATER HEATER 12L
BRAND NEW NATURAL GAS TANKLESS WATER HEATER 12L
$259.95
Time Remaining: 28d 11h 53m
Buy It Now for only: $259.95

NATURAL GAS TANKLESS GAS WATER HEATER 10 L 265 GPM
NATURAL GAS TANKLESS GAS WATER HEATER 10 L 265 GPM
$214.95
Time Remaining: 20d 17h 29m
Buy It Now for only: $214.95

NATURAL GAS NG TANKLESS WATER HEATER 16L 423 GPM
NATURAL GAS NG TANKLESS WATER HEATER 16L 423 GPM
$295.95
Time Remaining: 13h 6m

ON DEMAND NATURAL GAS NG TANKLESS WATER HEATER 16L 423 GPM
ON DEMAND NATURAL GAS NG TANKLESS WATER HEATER 16L 423 GPM
$296.95
Time Remaining: 28d 11h 47m
Buy It Now for only: $296.95

RV Tankless Hot Water Heater Propane Gas 15 GPM On Demand FREE FEDEX
RV Tankless Hot Water Heater Propane Gas 15 GPM On Demand FREE FEDEX
$159.99
Time Remaining: 26d 6h 31m
Buy It Now for only: $159.99

Marey GA16NG On Demand Natural Gas Tankless Hot Water Heater 42Gpm 16Lpm 2012
Marey GA16NG On Demand Natural Gas Tankless Hot Water Heater 42Gpm 16Lpm 2012
$296.95
Time Remaining: 21h 21m
Buy It Now for only: $326.65

AQUAH NATURAL GAS TANKLESS WATER HEATER 10L 265 GPM
AQUAH NATURAL GAS TANKLESS WATER HEATER 10L 265 GPM
$209.95
Time Remaining: 21d 11h 43m
Buy It Now for only: $209.95

111903 BTU h Power Gas Tankless Hot Water Heater LP or NG
111903 BTU h Power Gas Tankless Hot Water Heater LP or NG
$266.95
Time Remaining: 25d 20h 28m
Buy It Now for only: $266.95

ELITE ERMET SA GAS LP TANKLESS HOT WATER HEATER
ELITE ERMET SA GAS LP TANKLESS HOT WATER HEATER
$200.00
Time Remaining: 1d 1h 2m

NEW RINNAI RL75iN NATURAL GAS TANKLESS WATER HEATER
NEW RINNAI RL75iN NATURAL GAS TANKLESS WATER HEATER
$849.00
Time Remaining: 12d 2h 17m
Buy It Now for only: $849.00

AquaStar Liquid Propane Gas Tankless Water Heater 2400ES LP NEW
AquaStar Liquid Propane Gas Tankless Water Heater 2400ES LP NEW
$699.99
Time Remaining: 9d 5h 20m
Buy It Now for only: $699.99

16 gpm NATURAL GAS WHITE Ventfree tankless gas water heater NO FLUE REQUIRED
16 gpm NATURAL GAS WHITE Ventfree tankless gas water heater NO FLUE REQUIRED
$159.00
Time Remaining: 2d 9h 45m

Aquah Gas Tankless Instant Water Heater 6L 12kW Propane Natural NIB
Aquah Gas Tankless Instant Water Heater 6L 12kW Propane Natural NIB
$179.99
Time Remaining: 29d 2h 14m
Buy It Now for only: $179.99

HotChoice ON DEMAND TANKLESS WATER HEATER 16L NG NATURAL GAS
HotChoice ON DEMAND TANKLESS WATER HEATER 16L NG NATURAL GAS
$294.95
Time Remaining: 14d 3h 14m
Buy It Now for only: $294.95

16 gpm SILVER Natural Gas Ventfree tankless gas water heater No flue required
16 gpm SILVER Natural Gas Ventfree tankless gas water heater No flue required
$159.00
Time Remaining: 2d 9h 50m

TANKLESS HOT WATER HEATER FOR NATURAL GAS NEW OUTDOOR
TANKLESS HOT WATER HEATER FOR NATURAL GAS NEW OUTDOOR
$525.00
Time Remaining: 23d 7h 57m
Buy It Now for only: $525.00

RINNAI RL75iN NATURAL GAS TANKLESS WATER HEATER 75
RINNAI RL75iN NATURAL GAS TANKLESS WATER HEATER 75
$899.99
Time Remaining: 29d 22m
Buy It Now for only: $899.99

16 gpm SILVER LPG Gas Ventfree tankless gas water heater No flue required
16 gpm SILVER LPG Gas Ventfree tankless gas water heater No flue required
$159.00
Time Remaining: 2d 9h 50m

NEW 12L NG Force Exhaust Natural Gas TANKLESS INSTANT HOT WATER HEATER BOILER
NEW 12L NG Force Exhaust Natural Gas TANKLESS INSTANT HOT WATER HEATER BOILER
$196.00
Time Remaining: 22d 19h 18m
Buy It Now for only: $196.00

BRAND NEW NATURAL GAS TANKLESS WATER HEATER 423 GPM 16 L Hot Choice
BRAND NEW NATURAL GAS TANKLESS WATER HEATER 423 GPM 16 L Hot Choice
$294.95
Time Remaining: 20d 17h 6m
Buy It Now for only: $294.95

Eccotemp FVI 12 NG High Capacity Gas Tankless Water Heater
Eccotemp FVI 12 NG High Capacity Gas Tankless Water Heater
$0.99 (1 Bid)
Time Remaining: 2d 14h 1m

Rinnai RV53i Internal Propane Gas Tankless Water Heater
Rinnai RV53i Internal Propane Gas Tankless Water Heater
$631.99
Time Remaining: 12d 9m
Buy It Now for only: $631.99

AQUAH PROPANE GAS TANKLESS WATER HEATER 6L 16 GPM
AQUAH PROPANE GAS TANKLESS WATER HEATER 6L 16 GPM
$169.50
Time Remaining: 6d 13h 25m
Buy It Now for only: $169.50

Eccotemp L5 Portable Tankless Water Heater and Outdoor Shower Eccotemp L5 Portable Tankless Water Heater and Outdoor Shower

List Price: $149.00
Sale Price: $119.00
You save: $30.00 (20%)

 

Description

Enjoy instant hot water wherever you go with the Eccotemp L5 Portable Tankless Water Heater. Generating more than 1 gallon of hot water per minute, this compact, energy-efficient heater creates a more comfortable and convenient outdoor experience for you and your family...

Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater

List Price: $197.00
Sale Price: $169.00
You save: $28.00 (14%)

 

Description

The Ariston 4-gallon point-of-use electric mini-tank water heater eliminates the wait time for hot water to come from the sink faucet. You can install the heater independently or in-line with a larger water-heating source...

Reliance 6 6 SOMS K 6 Gallon Compact Electric Water Heater Reliance 6 6 SOMS K 6 Gallon Compact Electric Water Heater

List Price: $189.99
Sale Price: $172.99
You save: $17.00 (9%)

 

Description

1650W/120 with side plumbing, single element heating, factory installed T & P valve, 2-inch Insulation, R-Value 16.00, 15 1/4H x 14 1/8-inch diameter. Six-year tank & parts warranty.

Camp Chef HWDS Triton Hot Water Heater Camp Chef HWDS Triton Hot Water Heater

List Price: $187.50
Sale Price: $119.63
You save: $67.87 (36%)

 

Description

The Triton Hot Water Heater provides the hot shower you need and want when you're on the road or camping, as well as hot water for camp side cooking and cleaning, in seconds from a standard garden hose...

Executive Single Jet Lighter, Blue Executive Single Jet Lighter, Blue

List Price: $25.00
Sale Price: $20.48
You save: $4.52 (18%)

 

Description

High quality, functionality and sophistication sums up this lighter. Say goodbye to burned fingertips with this innovative design that places the trigger along the body of the lighter. The oversized adjustment wheel ensures a quick flame adjustment for any occasion...

Camco 11673 6 Gallon RV Hot Water Hybrid Heater Camco 11673 6 Gallon RV Hot Water Hybrid Heater

List Price: $109.19
Sale Price: $75.63
You save: $33.56 (31%)

 

Description

CAMCO MFG 11673 HOT WATER HYBRID HEAT 6 GALLON 11673

Atwood Mobile Products 96110 Pilot Ignition Water Heater - 6 Gallon Atwood Mobile Products 96110 Pilot Ignition Water Heater - 6 Gallon

Sale Price: $290.85

 

Description

Here's a value-priced Water Heater that won't leave you out in the cold during your shower. And not only is it reliable, it's efficient. The patented through-tube combustion chamber actually uses heat from the pilot flame to help maintain water temperature rather than losing that heat energy to the outside...

Camco 11773 10 Gallon RV Hot Water Hybrid Heater Camco 11773 10 Gallon RV Hot Water Hybrid Heater

List Price: $117.76
Sale Price: $75.25
You save: $42.51 (36%)

 

Description

Converts your RVs gas-powered water heater so it can use electricity. When your RVs propane supply is running low, flip the power switch, set the adjustable thermostat and the stainless steel electric-powered heating cartridge brings the water to temperatures ranging from 90F to 150F...

Coleman Hot Water-On-Demand Portable Water Heater Coleman Hot Water-On-Demand Portable Water Heater

List Price: $259.99
Sale Price: $259.95
You save: $0.04 (%)

 

Description

The Coleman(r) Hot Water on Demand(r) is designed to provide you with hot anytime while your enjoying the outdoors. Simply connect the hose to the 5-gallon water container (included) and adjust it to the desired temperature...

Eccotemp L5 Portable Camp Shower Eccotemp L5 Portable Camp Shower

List Price: $149.95
Sale Price: $119.00
You save: $30.95 (21%)

 

Description

The Eccotemp L5 is the hottest portable tankless water heater and shower on the market today. This compact and lightweight heater allows for hot water virtually anywhere. The unit comes with a shower head and hose, a garden hose adapter and a LP regulator and hose - everything you need right out of the box! All you need to supply is water, water pressure (a minimum of 20 PSI - such as from municipal water or one of our 12 volt Flo-jet water pumps, 2 D cell batteries and propane...

Tankless Water Heaters

I recently had a few people ask about tankless water heaters, so I decided to do some research.  The first place I went to was Consumer Reports.  I didn’t bother going any further.

 

The process of heating water in your house accounts for approximately 30% of your home’s energy costs (on average).  Some makers of gas-fired tankless water heaters claim their products can cut your energy costs up to half over regular storage heaters.  Don’t run out to buy one.

 

A gas tankless water heater uses high-powered burners to quickly heat water as it is running through a heat exchanger.  The average savings was 22% over the gas-fired storage tank models that were tested. 

 

This translates into an average savings of about $75 per year, based on 2008 national energy costs.  However, the tankless models cost so much more than the traditional version, and it can take up to 22 years to break even – longer than the 20-year life of many models. 

 

Furthermore, Consumer Reports conducted an online poll of 1,200 readers which revealed wide variations in installation costs, energy savings, and satisfaction.  Many of the electric models can’t deliver hot water fast enough to replace a conventional water heater.  Most homeowners with electric service only don’t have the option of gas models, and would have to upgrade their electrical service in order to power a whole-house tankless model. 

 

There are a few other issues that manufacturers have yet to resolve.  They often claim that their products are able to provide an endless amount of hot water.  But inconsistent water temperatures were a common complaint among the respondents polled by CR. 

 

When you turn the faucet on, tankless models feed in some cold water to gauge how big a temperature rise is needed.  If there’s cool water lingering in the pipes, you’ll receive a momentary “cold water sandwich”.  And a tankless water heater’s burner might not ignite when you try to get just a trickle of hot water for, say, shaving.

 

Tankless hot water heaters don’t delivery hot water instantaneously either.  It takes time to heat the water to the target temperature, and just like storage water heaters, any cold water in the pipes needs to be pushed out.  Tankless models electric controls mean you’ll also lose hot water during a power outage.

 

Tankless water heaters cost $800 to $1150, compared to $300 to $480 for storage tank models.  Tankless models need electrical outlets for their fan and electronics, upgraded gas pipes, and a new ventilation system.  This all brings the average installation costs to $1200, compared with $300 for storage tank models. 

 

During CR’s long-term testing, an indicator on the tankless model warned of scale buildup.  They paid $334 to replace valves and have a plumber flush out the lines with vinegar. 

 

Many industry experts recommend that tankless models be serviced once a year by a technician.  Calcium buildup can decrease efficiency, restrict water flow, and damage tankless models.  Experts suggest installing a water softener if your water hardness is above 11 grains per gallon.  Ignoring this advice can shorten your warranty. 

 

This research proved to be an eye-opener for me.  I hope it helped you as well.

About the Author

Charles Gueli
www.continuous-home-improvement-help.com.