Installing an ETi 400 heater indoors requires the Pentair 475971 ETI-400 Indoor Air Intake Kit. This is because indoor areas do not have access to enough air for the heater. It connects to the heater directly and installs into PVC or a specialized venting pipe.
Why Is the Pentair 475971 ETI-400 Indoor Air Intake Kit Important to My ETi Heater?
This indoor air intake kit provides the heater the required amount of airflow and supports safe and efficient combustion. Also, the Eti heater needs a consistent one way flow of air to operate at the 96% heating efficiency of an ETi heater.
*Always confirm the model of your product for compatibility before ordering any part. Please call Shasta Pool Supply if you are not sure and we will be happy to help.*

Important Notice: Gas Product Installation
Before installation, it is important to verify your heater's exact model, BTU rating, and what type gas it runs on. If the propane or gas orifice does not match the size of your heater this can cause combustion problems. Also, it is best to have a service tech or qualified professional install it and test it. Always follow Pentair's instructions and local gas codes.
Pair Pentair 475612 With:
Also, pair the Indoor Air Intake Kit with the Pentair 475612 Condensate Neutralizer kit if one has not been installed on your ETi heater. This product helps dispose of the acidic waste water the ETi heater creates with minerals. It protects your plumbing and the environment from the waste.
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Waterco MultiCyclone 16 Centrifugal Filter | Pre-Filter 2" 50 mm Models
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Hurricane 450 sq. ft. Inner Outer Replacement Cartridge Set for Sta-Rite S8M150
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Animal Leaf Rake with Standard Bag | Oreq LN4135
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Hurricane for Pentair Clean & Clear Plus 420 Pool Filter Cartridge 4 Pack HF7471-04
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What our customers are saying
Shasta has been and will always be a superior Swimming Pool Supply and construction to that exceeds performance. Great Service on All Levels.
Shasta has been and will always be a superior Swimming Pool Supply and construction to that exceeds performance. Great Service on All Levels.
Ulysses B
Reps exceeded my expectation to help get the right repair kit. Install went in withan issue, thx
Reps exceeded my expectation to help get the right repair kit. Install went in withan issue, thx
Mike H
Outstanding experience. My order was confirmed and shipped the same day. The part was a factory sealed Pentair part and was exactly as specified.
Outstanding experience. My order was confirmed and shipped the same day. The part was a factory sealed Pentair part and was exactly as specified.
Matt S
FAQ
Our expert staff answers customer's most asked questions.
Is this an OEM part?
Yes this part is original, from the manufacturer, and contains a manufacturer part number.
Is installation simple?
Pentair makes it easy to install their replacement equipment, with numerous guides and videos available online.
Does this part come with any warranty?
Replacement parts do not come with a warranty, although many of our complete equipment comes with a full manufacturer warranty.
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