Hayward 400K Negative Pressure Indoor Vent Adapter | UHXNEGVT14008
Hayward Products
SKU: HPPUHXNEGVT14008
Hayward UHXNEGVT14008 Negative Pressure Vertical Indoor Vent Adapter Kit, 8" (H400FD)
Hayward UHXNEGVT14008 is a genuine negative-pressure vertical indoor vent adapter kit designed for Hayward Universal H-Series H400FD (FDN/FDP) Low NOx heaters. It provides the proper 8" vent connection required for approved indoor (and certain covered outdoor) vertical venting installations when the site requires negative-pressure venting configuration.
Key Features
- Part Number: UHXNEGVT14008
- Brand: Hayward
- Type: Negative pressure vertical indoor vent adapter kit
- Vent Size: 8" diameter adapter
- Heater Compatibility: Hayward Universal H-Series H400FD models (commonly listed for H400FDN and H400FDP)
- Use Case: Indoor vertical venting (and certain covered outdoor venting situations when allowed by installation instructions)
- Genuine Hayward replacement kit for correct fit and code-compliant installation (when installed per Hayward instructions)
- Common note: listed as replacing older kit UHXNEGVT14001 in many references
Applications
Used for approved venting configurations on compatible Hayward H400FD heaters where an 8" negative-pressure vertical vent adapter is required. Often used in commercial or in-ground installations that need a specific indoor venting setup.
Installation Notes
- Verify the exact heater model (H400FDN/H400FDP) and the required venting type before ordering.
- Venting must follow Hayward installation instructions and local code requirements.
- Professional installation is strongly recommended for gas heater venting components.
- Inspect the venting path, clearances, and termination requirements during installation.
Related Products
- Hayward UHXNEGVT14008
- Hayward H400FD Heater Parts
- Hayward Universal H Heater Vent Kits
- Hayward Heater Gaskets & Seals
- Hayward Heater Ignition Parts
Maintenance Tips
- Inspect vent connections and supports periodically for looseness, corrosion, or signs of leakage.
- Keep the heater area clear and maintain required clearances for safe combustion air and service access.
- If the heater shows vent/pressure fault codes, verify venting configuration and restrictions before replacing parts.
- Have venting inspected during annual heater service, especially on indoor installations.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
