Max Distance for Gas Tankless Water Heater Venting

Stubits · Nov 5, 2009, 04:29 PM

I am considering purchasing a gas water heater but have some concerns about the venting. Everything I've read seems to indicate that the heater vent must exit the house within 10' of the heater. Due to my home's configuration, the minimum distance is about 25'.

Am I totally out of luck? Are there any options for my situation?

Thanks!

KeepItSimpleStupid · Nov 5, 2009, 06:36 PM

Not sure if this is permissible either: Fantech Dryer Booster Kits & Lint Traps - Fantech Inline Ventilation

Milo Dolezal · Nov 6, 2009, 09:43 AM

mygirlsdad77 · Nov 6, 2009, 03:54 PM

check out Navien tankless water heaters,,,,98% percent efficient, and can use three inch pvc vent up to 100 feet with up to six elbows,,the units are a might pricey,,your best bet would be to contact a professional tankless installer and have them tell you what can be done.

Milo Dolezal · Nov 8, 2009, 11:19 AM

Rinnai tankless heater vent can be up to 41' long. See the chart ...

Stubits · Nov 9, 2009, 05:03 AM

Guys, thanks so much. It looks like I have plenty of options. Thanks a ton!



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