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Old 11-22-2007, 06:44 PM   #1
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Tankless Water heater outdoor mount?


Any pros or cons to going with an outdoor mounted unit? I like the simplicity of not having to vent it if it were indoors. Considering the Noritz 751 series. Thanks.
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Old 11-25-2007, 10:38 PM   #2
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Tankless Water heater outdoor mount?


Outdoor instal is great as long as it doesnt freeze in your area and you instal it in a recess box to protect it and keep it away from rain dripping from the roof or dont instal it under a window. Is this a new house?

If it is an existing house you could save some demo work by puting it on the inside on an outside wall and use a sweet termination direct vent kit through the wall above the unit so you dont have to run alot of venting.

That vent kit is catagory 3 stainles steel, you must use cat 3 venting with tankless because of the high temp of the exhaust not regular b vent. This kit is a Heatfab product.
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Old 11-26-2007, 04:23 PM   #3
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Tankless Water heater outdoor mount?


Thanks very helpfull. My problem is i dont have a good exterior wall to mount it on. Could i go up and then turn horizontal and go under a concrete slab (to be poured later) if i sleeve the vent pipe in 6" PVC or something?
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Old 11-27-2007, 06:25 PM   #4
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Tankless Water heater outdoor mount?


No dont sleeve it or run it underground
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