This is from a gas water heater. I was under the impression that all combustion hot water heaters needed vent hoods. This goes straight up and exits through the roof. Just wanted some input if this was correct before I call it out.
Thanks
It’s wrong.
Powered vents don’t have draft hoods, but this isn’t a powered vent. It’s just wrong.
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Coolio. I thought as much. Just wanted a little more input. Thank you!
Manufactured home?
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Not too fast there. I like the well labeled anode rod by the way.
Most, but not all, gas heaters need a draft hood.
You’ve got a picture of a hack job, but to do it right you need a photo of the rating label on the device and to check the installation instructions:
Here’s a counter example the Richmond MVR30DV3
The rats would know, but you might miss, the air inlet.
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Yes it is.
Is that showing the air being pulled from under the floor?
Atmospheric vent.
Natural Gas Water Heater Vent Types
Standard Atmospheric Vent. The most common type of residential gas water heater is a standard atmospheric vent type…
Power Vent. State power vent gas water heaters come with an electric blower fan installed atop the unit.
Power Direct Vent.
Direct Vent.
So the atmospheric vent would still need an electric blower?
Convection. As warm air rises cooler air moves in to take its place.
Working on the principle of hot air rising, atmospheric gas water heaters vent combusted exhaust through a vertical or upward sloping metal duct vent to exit the home.
Hope that helps.
The duct vent is a bit of a small fit and the seam is not sealed with aluminum tape. Other than that I would look for duct/vent supports and at the vent penitration for a thimble.
That does help! I appreciate it!
Please DO NOT recommend aluminum tape.
It’s not needed on natural draft flues.
It serves zero function.
If it had a function, it would be a defect because… the tape won’t last the service life of the equipment. If the tape was covering a hole, then that hole would reappear unknown to the homeowner.
**
Misinformation alert! Especially on single wall natural draft flues tape is a defect **
Power vent flues are under pressure and must not have holes. But no tape here either: should be PVC cement for the most common types (due to high efficiency the flue temperature is too low to draft, thus you can’t use a traditional chimney style vent).
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What’s the model number in this case?
RG2DVMH40T6X is the model number.
Haha! That’s awesome!
Careful of misinformation above. What @ryoung7 wrote is not relevant to your situation.
Your heater, which is HOT by the way, has vendor instructions:
RG2DVMH40T6X This water heater is of the closed combustion type (direct venting) for mobile home applications only, where all combustion air is supplied from the outdoors through the air intake and all combusted gas products are vented directly to the outside by means of the roof jack.
No draft diverter (vent hood) is required for this water heater. The ETL listing of this water heater includes the field installation of the following components: roof jack, roof jack clamp, air intake, air intake seal, and heater tie down materials. These components for field installation are shipped with the heater in a separate box and must be installed according to instructions.
And certainly not whatever nonsense they installed. You need photos of the inside, the outside at roof level, the label, the entire flue, and if possible the inside of the attic showing the pipe.
TAPE IS NOT REQUIRED despite what @ryoung7 said above. Tape does not last the lifetime of the equipment.
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