Apply to be a TradeMaster!
Main product image of 40 Gallon GDV-40L 38,000 BTU ProLine Direct Vent Residential Gas Water Heater w/ Side Connections - Short (NG)
Magnifying glass
Hover image to zoom

40 Gallon GDV-40L 38,000 BTU ProLine Direct Vent Residential Gas Water Heater w/ Side Connections - Short (NG)

Brand:
AO Smith
SKU:
GDV-40L
Rating:
(11)
Q&A:
(7)
40 Gallon GDV-40L 38,000 BTU ProLine Direct Vent Residential Gas Water Heater w/ Side Connections - Short (NG)
Magnifying glass
Hover image to zoom

Lift Gate

This product weighs 178 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Fuel Type
Natural Gas
Product Highlight: Vent Type
Direct Vent
Product Highlight: Warranty
6 Year Tank/6 Year Parts Limited Warranty
Product Highlight: Capacity (Gallons)
39 Gallons
Product Highlight: Height (Inches)
68" Height
Product Highlight: Energy Star Rated
No

Description

The FVIR-compliant ProLine 40-Gallon Direct Vent Natural Gas Water Heater is to designed to draw air from outside the home, eliminating problems caused by insufficient indoor ventilation. The unit has horizontal air intake and venting on all models up to 80” from the outside wall with no electrical power needed. Featuring a 40-gallon (nominal) tank and a 38,000 BTU gas burner, the GDV-40L Direct Vent delivers a first hour rating of 64 gallons and a recovery rate of 41 gallons per hour. It carries a 6-year limited tank warranty, and meets Low NOx emission requirements. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine water heater is designed with A. O. Smith's superior commercial-grade tank protection. Advanced tank features include stainless steel CoreGard anode rod, Blue Diamond glass lining and DynaClean automatic sediment-cleaning system, all designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. A. O. Smith's ProLine water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.

Features:
  • Delivers 64-gallon first hour rating
  • 38,000 BTU input direct vent design delivers up to 0.60 Uniform Energy Factor
  • Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
  • Push-button piezo ignitor makes lighting pilot fast & easy
  • Includes side mounted recirculation taps for easy installation with combination space heating/potable water heating applications
  • Patented Blue Diamond glass tank lining protects against corrosion
  • DynaClean automatic cleaning system protects against sediment build-up
  • Stainless steel CoreGard anode rod protects against corrosion longer than ordinary anodes
  • Commercial-grade brass drain valve for durable and easy operation
  • 6-year limited tank and parts warranty
  • Specs

    Intended Household:

    2-3 Person

    Application:

    Plumbing

    Capacity (Gallons):

    39

    BTU Input:

    38000

    Energy Factor:

    0.60

    Energy Star Rated:

    No

    Fuel Type:

    Natural Gas

    Vent Size:

    3"

    6"

    5"

    4"

    Vent Type:

    Direct Vent

    Water Connection:

    3/4"

    ASME:

    No

    Max Pressure (PSI):

    150

    Gas Connection:

    1/2"

    1st Hour Delivery (Gallons):

    73

    Recovery 90°F Rise:

    41 GPH

    Max Altitude (Feet):

    7700

    Diameter (Inches):

    22-1/4"

    Depth (Inches):

    25-1/4"

    Height (Inches):

    68"

    Weight (lbs):

    167 lbs

    Warranty:

    6 Year Tank/6 Year Parts Limited

    Contact

    Help Face
    CALL US
    Question? Call or text 888-757-4774
    +
    Help Face

    Questions?

    Speak with a real person who will go out of the way to help!
    Call or text 888-757-4774
    MondayThursday
    8am7:45pm
    Friday
    9am7:45pm
    SaturdaySunday
    9am5:45pm

    Response by Wed

    Compare Similar Products

    Brand
    Intended Household
    Application
    Capacity (Gallons)
    BTU Input
    Energy Factor
    CURRENT ITEM
    Product Image of 40 Gallon GDV-40L 38,000 BTU ProLine Direct Vent Residential Gas Water Heater w/ Side Connections - Short (NG)
    40 Gallon GDV-40L 38,000 BTU ProLine Direct Vent Residential Gas Water Heater w/ Side Connections - Short (NG)
    SKU: GDV-40L
    (11)
    2-3 Person
    Plumbing
    39
    38000
    0.60

    You May Also Need

    3/4" FIP Pro Series Braided Hose Water Heater Connector (18" Length)
    SKU: PRO1H18
    Fluidmaster

    1 Replacement Part

    Help Image
    Need help finding a replacement part?
    Fill out the part request form and someone will get back to you shortly.
    PART REQUEST FORM

    Product Reviews

    4.82 out of 11 reviews
    100% would recommend this product
    4.82
    out of 11 Reviews
    100% would recommend this product
    WRITE A REVIEW
    5 star
    91%
    4 star
    0%
    3 star
    9%
    2 star
    0%
    1 star
    0%
    WRITE A REVIEW

    Most Liked Positive Review

    Great Product

    I needed a direct vent product and was trying to decide between this tank and an on demand water heater. After reading alot of reviews I decided on the waterheater because of consistant complaints about the on demand system. My only complaint was the shipping. They keep calling and setting a time to deliver and then after wasteing half a day they would call and reschedule. After a week of this I went down to the freight company and picked it up only to find it scratched and dented.The damage was not enough to prevent it from working and it is in my utility room where noone will see it so I keep it but I was disappointed in the shipping company.
    VS

    Most Liked Negative Review

    Yes

    Wait time was to long. Then first water heater that got here was damaged , so I had to wait another week for the water heater. My customer was very unhappy!
    Showing 1-10 of 11 reviews

    easier and fast respond

    so far good, first unit arrived bad because of shipper and Supply House sent replacement. I might buy more from this site if I need other stuff in the future
    HowdyHai
    Hackensack NJ
    9 months ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Yes

    Wait time was to long. Then first water heater that got here was damaged , so I had to wait another week for the water heater. My customer was very unhappy!
    Ronnyro
    Wheatland
    3 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    I would purchase this product from you again

    Was delivered complete and undamaged
    Craig
    Virginia
    4 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Great product and service

    It was very easy to order and delivery was spot on. Did have a little trouble with delivery service company but it was resolved quickly. Would order again from this company
    Reefdiver
    Hobe Sound Florida
    5 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    excellent product

    delivery was prompt. Neighbor installed in approx. 4 hours. Very satisfied.
    kurt
    ft myers,fl
    8 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    So Far So Good

    Received timely although couple of dings from transportation. Replaced 23 Y.O. AO-Smith G-40 Direct Vent and all went well, except we had to enlarge hole in wall from 5" to 6" for piping. AO-Smith included all necessary parts from Silicone, outside box, plenty of flex vent tubing to even 2 small pipe foam insulation for supply and heat water feeds. Relief Valve was a bit lover so we directed to pan vs. out wall. Started up and heated quickly, set on lowered setting than previous heater was plenty hot. Looks good too.
    JBK
    Pismo Beach, CA
    9 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Good experience with purchase and delivery of unit.

    I am pleased with the new AO Smith 40 Gallon Natural Gas water heater. Good shape out of the box and started up with no problems.
    DC
    Rock Hill, S.C.
    10 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Great Product

    I needed a direct vent product and was trying to decide between this tank and an on demand water heater. After reading alot of reviews I decided on the waterheater because of consistant complaints about the on demand system. My only complaint was the shipping. They keep calling and setting a time to deliver and then after wasteing half a day they would call and reschedule. After a week of this I went down to the freight company and picked it up only to find it scratched and dented.The damage was not enough to prevent it from working and it is in my utility room where noone will see it so I keep it but I was disappointed in the shipping company.
    Will
    Salt Lake City, Utah
    13 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    I highly recomend this Water Heater

    AO Smith water heaters are the best on the market. This 40 gallon Pro Max is just another great example of the AO Smith brand. I had a AO Smith previuos to this one and it lasted 20 years. I then purchased a different brand (big mistake) with in one week I returned it and purchased this AO Smith. Lets just say I learned my lesson to stick with a proven Brand. We are very happy to have a AO Smith water heater again!
    Carp
    Sobieski, WI
    13 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Very happy with this product

    Our 20-year-old AO Smith unpowered direct vent water heater finally gave up the ghost, and had to hunt around for a replacement. We located this water heater at Pex, which was very similar. The efficiency of this water heater allowed us to go from a 50 to a 40 gallon tank and still accommodate a family of 5. We even turned down the heat setting to its lowest level. We appreciate its efficient use of gas and the fact that no electricity is needed to run the exhaust, which saves money and means it works when the power goes out.
    family of five
    Chicago, IL
    14 years ago
    Verified Buyer Icon
    Verified Buyer
    Was this review helpful to you?

    Product Q&A

    7 Questions
    7 Questions
    ASK A QUESTION

    Q: Is it possible to extend the horizontal venting further to the exterior wall? Ideally another 40 inches. Is there an extension kit available?

    Asked by Andrew 10 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- Supplyhouse Staff

    The manufacturer does not recommend going further than their recommended venting distance. They do not offer any kits to extend this distance. Please refer to page 13 of the user guide for complete venting instructions.

    Was this review helpful to you?

    Q: Does this product require electricity to operate?

    Asked by None 10 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- SupplyHouse Staff

    No, it does not require an external power source.

    Was this review helpful to you?

    Q: what is the MEA number (Materials and Equipment Acceptance) for GDV-40? is it approved to be used in NYC?

    Asked by tom 11 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- Supplyhouse Staff

    we are not provided with that info, you can try calling AO Smith directly.

    Was this review helpful to you?

    Q: Please give a brief description on venting regulations for this heater?

    Asked by Purr-fect 14 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- PexSupply Staff

    Please refer to the Installation Guide at the link below, starting on page 13. http://s3.pexsupply.com/manuals/1277918330238/33771_PROD_FILE.pdf

    Was this review helpful to you?

    Q: can i replace direct vent with power vent

    Asked by 14 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- PexSupply Staff

    You can, provided that there is adequate indoor combustion air.

    Was this review helpful to you?

    Q: Is the energy factor (ef)the same as the efficiency rating or in this case 62% efficient?

    Asked by 15 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- PexSupply Staff

    Yes, it is.

    Was this review helpful to you?

    Q: Has the AO Smith GDV 40-100 direct vent water heater been replaced by a newer, more expensive model as my plumber states?

    Asked by 15 years ago

    Add your answer

    * Required Field
    Verified Author and ReplyVerified Reply- PexSupply Staff

    According to the manufacturer, The GDV-40 series 100 is still available.

    Was this review helpful to you?
    Free Shipping
    On orders over $99
    We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
    Shipping Policy
    Easy Returns
    Returning items is as simple as 1-2-3
    Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
    Return Policy