ProLine^® XE Effex^® High Efficiency 40-Gallon Gas Water Heater

ProLine® XE Effex® High Efficiency 40-Gallon Gas Water Heater

Model GAHH-40

The ProLine® XE Effex® High Efficiency atmospheric gas water heater is an ideal choice for replacement application, delivering the highest efficiency ratings among standard gas models and helping you save as much as 25% on water heating costs.

Featuring a 40-gallon (nominal) tank and a 40,000 BTU gas burner, the GAHH-40 standard vent delivers a first hour rating of 68 gallons and a recovery rate of 43 gallons per hour. With an 0.66 Uniform Energy Factor, this water heater is ENERGY STAR® qualified. It carries a 6-year limited warranty, and meets Low NOx emission requirements.

Where to Buy

Ashburn, VA 20149

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K&B Plumbing and Heating

Gaithersburg, MD

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Donald Newton Plumbing Inc.

Falls Church, VA

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Kiddco Plumbing Inc

Sterling, VA

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Ashburn, VA 20149

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single shower length

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showers

back-to-back

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showers

at the same time

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maximum tub size

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time to fill tub

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estimated energy cost

Many factors affect the actual performance of a water heater. This represents our closest approximation of your likely experience with this water heater in Ashburn, VA, but actual performance may vary depending on factors beyond our ability to control or estimate. To view or adjust our assumptions of the most common factors that impact this product’s performance in Ashburn, VA, please view the advanced settings. *Annual energy costs are estimated from the energy efficiency of each water heater, your household’s estimated water usage & set temperature, the average groundwater temperature for your location, and residential energy prices as reported by the Department of Energy.

Product Features & Options

Electronic Gas Control

Intelligent control logic provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response to optimize performance.

Powered Anode Rod

Powered anodes are non-sacrificial, so they do not deplete over time. Additionally, they provide exceptional performance in all water conditions.

Brass Drain Valve

• Solid brass, tamper resistant, enhanced-flow, ball type, valve.

• Uses a standard female hose fitting that allows for fast and easy draining during maintenance.

• Screwdriver slot features a 1/4 turn radius, for straight-through water flow and a quick and positive shut off.

DynaClean™ Dip Tube

Helps reduce lime and sediment buildup, maximizes hot water output. Made from long-lasting PEX cross-linked polymer.

How it Works

The high efficiency performance of the Effex® model is possible thanks to its patented air intake system. Air is pushed into the combustion chamber creating a pressurized environment. Due to this “turbo charge” effect, tighter baffling is incorporated in the flue design to slow down the hot gas as it travels through the water heater. This results in more heat transferred to the water and less energy wasted.

Certifications

year

limited warranty

0.66

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components

ASME American Society of Mechanical Engineers

Product Specifications

Tech Specs
Nominal Capacity: ?Nominal capacity is the representative number pursuant to the safety standard certification process for water heaters	40
Rated Storage Volume ?Rated Storage Volume = Rated storage volume is the measured storage volume defined by the Department of Energy.	38
UEF	0.66
Maximum BTUs:	40,000
Power Source:	Natural Gas
Limited Tank Warranty:	6 Years
Limited Parts Warranty:	6 Years
Anode:	Powered Anode
T&P Relief Valve:	Yes
Ignition Type:	Electronic
Water Connection Location:	Side
Water Connection Size:	3/4"
Emissions:	Low NOx
LEED Rating:	1
ENERGY STAR®:	Yes
FVIR Certified:	Yes
Digital Display:	Yes
First Hour Rating:	68

Dimensions & Venting
Type:	Tall
Height:	61 3/4"
Height w/Draft Hood:	61 3/4"
Diameter:	20"
Width:	20"
Depth:	20"
Vent Type:	Standard Vent

Technical Documents

Residential Warranty Sheet (100293072)ProLine® XE Effex Spec Sheet (AOSRG46900)Effex™ High Efficiency Gas (Canada) (CANRG45000)Residential High Efficiency Gas Service Handbook (318181)Effex® High Efficiency Manual (315456-004)Effex® GAHH Parts List (318361-000)

Marketing Resources

10 Reasons to Buy an A. O. Smith ProLine Heater Brochure (AOSRB71004)ProLine® Family Brochure (AOSRB01008)Canadian Residential Catalogue (CANRB80000) (Not all units available)Residential and Commercial Full Line Pocket Catalog (AOSAA80000)

Incentives

Rebate and incentive programs provide cash-back to consumers for the purchase of appliances that meet certain energy efficiency standards. Often, these standards are tied to the ENERGY STAR® program.

Cash for Appliances is designed to encourage the purchase of energy efficient appliances. Consumers who purchase ENERGY STAR® or CEE qualified appliances can receive cash rebates. Most states are offering rebates in the $50 to $250 range.