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Brand: AO Smith
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It's a simple fact: the Effex is the most efficient and advanced
conventional vent gas water heater on the market. This makes
it an ideal choice for homeowners who want to replace
their older, inefficient water heater without the hassle.
This ENERGY STAR® compliant water heater also comes with
another irresistible benefit: significant savings on utility bills.
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.
Weary of hassles involved in a high efficiency water heater installation? With the Effex, there's not much to worry about. For starters, it uses standard water and gas connections. It easily connects to existing B-vent on replacements, and it can be common vented. No wonder it is known as effortless.
Lift gate service includes removal of your package from the truck and provides curbside delivery.
A lift gate is a hydraulic lift on the back of a freight truck that moves heavy items from the bed of the truck onto the street.
You do not need a lift gate if your delivery location has a loading dock or forklift.
(based on 28 reviews)
of respondents would recommend this to a friend.
Most Liked Positive Review
Really good water heater
I got this water heater to replace a 15 year old unit. The old one still worked and didn't leak but had very poor temperature control. The control band of its manual gas valve...Read complete review
I got this water heater to replace a 15 year old unit. The old one still worked and didn't leak but had very poor temperature control. The control band of its manual gas valve thermostat was unacceptably large, about 25-30 degrees, meaning that the temp would decline 30 degrees when the unit was inactive, then heat up 30 degrees when the burner cycled on. This led to many lukewarm first showers in the morning.So I had high hopes for this AO Smith unit with electronic digital controls... and it didn't disappoint. It keeps a much narrower band of temperature control so I always have a nice hot shower first thing in the morning. It's about time!It also has a MUCH higher efficiency rating (.7 vs .54) than my old one so it should dave me a few $$. Another benefit was that I got the higher efficiency with a unit that was just about "plug and play" with my existing gas connection and type B vent.The main downside is that the small blower that assists the supply of combustion air is a little loud, sort of reminescent of a hair dryer... but not quite that loud. So depending on where you need to install the water heater that may or may not be an issue for you. Mine is in a downstairs utility room so I don't hear it. The onboard 24V transformer (similar to what you have on your furnace to run the controls) also hums more than most, but again, it is not an issue with my install location.Only other question mark is durability and reliability of the electronics. It is a lot more complicated than a typical gas water heater, but similar controls and ignitors function reliably in gas furnaces. Time will tell....BTW, PEX Supply gave great service and fast shipping. What's not to like?
Most Liked Negative Review
AO Smith Effex- *** Very Very Noisy ***
Pros:- Energy Efficient/Energy Star Rated.- Easy to install like any other tank water heater.Cons:The fan on the side of the water heater...Read complete review
Pros:- Energy Efficient/Energy Star Rated.- Easy to install like any other tank water heater.Cons:The fan on the side of the water heater is very small but very very loud. Sound of fan comes up thru my duct work and very annoying never mind standing in close proximity to it. I would not recommend this product for the noise factor alone. Sounds like a loud blow dryer. The sound is not subtle and not something you are going to get used to.As an aside, had a great shopping experience with Pexsupply.com and will shop here again.
Reviewed by 28 customers
Displaying reviews 1-10
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Great Value! Fast Shipping!
from Park City UT
Comments about 50 Gallon - 40,000 BTU Effex High Efficiency Residential Gas Water Heater:
The new heater arrived in great shape, was installed by a professional and fired right up. The heater is in the basement and the noise is not an issue. As everyone mentions, it sounds like a hair dryer on low (only when it is heating the water, not at rest) and it's certainly not a deal breaker with how efficient it is. It has a very fast response time and with 5 people in the house we had plenty of hot water.
Bottom Line Yes, I would recommend this to a friend
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Arrived in S. Florida in pristine condit
By Heli Engineer
from Palm Beach Gardens, Fl
Very impressed with this water heater. Extremely easy install, electronic ignition, super efficient. Shipped all the way to S. Florida with no damage and free of charge.
AO Smith Effex gas hot water heater
from San Diego, CA
Seems well built. No anode to wear out!
(1 of 1 customers found this review helpful)
Absolute, total fail.
from St Louis Mo
Arrived 3 weeks after order date, which frankly, I could live with. But when we installed it, it would not power on. Called AO Smith, and MFG could also not figure out how to get unit to work. Low and behold, it's some kind of failed electronic part which will require a complete gutting of the unit by a third party dear from AO Smith. Phone support was useless. You know - I would expect, that spending a substantial amount on a unit, especially a large one that has to be shipped a long distance, would make AO Smith a little more cautious about testing their units so THEY WORK when they ship. But I guess not. Guess who is without hot water until someone finds the part (oh, yeah, no one has that either) this guy.
Bottom Line No, I would not recommend this to a friend
Stay Away from A.O. Smith GAHH-50!
from San Francisco
I ordered a new GAHH-50 from PexSupply and had it installed by a professional plumber yesterday. The Water Heater would not start (Control Display flashing with error message). After a ton of troubleshooting that lasted a few hours, I got the unit to work, just to find out, a couple of hours later, that the unit had another error ("P-ANODE" flashing). Customer Support just goes by the troubleshooting guide, which I have read several times now, so not really a value-add to a customer. Bottom line, a new unit should just work. Now I have to spend more time and $$ chasing and fixing this. What a letdown by A.O. Smith!
from Kansas City Mo.
Installed my self about 1 week ago. Worked perfectly.. Pex price & delivery was very good.
(2 of 2 customers found this review helpful)
I would buy this product again
from Bethlhem pa
Easy to hook up. Heats up fast water is always hot the fan is a little noises if in basement or in a closed room won't notice noises
When a H.E. wall vent won't work.
By Joliet Jake
from Southwest of Chicago
Pex online info is quite useful with evaluating different models and reviews from others. I was really looking for a 90+ efficient condensing tank model, but the basement layout was not conducive to coring holes for venting. This model seemed appropriate with aiming for efficiency, but having to deal with legacy installation limitations. Delivery came a week early – even during the horrendous 2013 Midwest winter.Though the delivery was nothing like the pex video, the driver had it right by the garage door when I got outside. The heater box was w/o damage and there were no dings or issues when un-boxed. Installation was easy to perform by myself, even with having to modify the gas line and copper piping. The gas line was due to the gas inlet and fan duct conflict, the copper was due to existing valve age. The vent does sound like a low speed dryer as mentioned by others; this has not been a concern being in the basement. A customized shop vac filter and shroud would quite it.For three of us, water temp has been consistent and the unit has good quick response with starting early when water is being used. The thermostat programing was simple and fortunately have not experienced any error code messages after 2 weeks of service.Thinking of wrapping this one with the old insulation blanket, but all areas have been cool to the touch as compare to the old. Need to borrow an IR gun to see if this is worthwhile. Still way too early for any gas noticeable savings over the 17 yr old one, especially being in the middle of a Chicago winter.
Effex water heater
from Fremont ca
This unit is my main water heater, installed unit which was a snap. Unit started right up with no problems. Been using it for 1 week now it has been doing great. Put a pan underneath , strapped it down with cables and connected right up to my flu no problems. See if my power goes down.
high tech unit
from south jersey
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