An intelligent heavy-duty low-NOx gas pool and spa heater featuring proprietary NiTek nickel-alloy heat exchanger technology and integrated smart ecosystem automation. Engineered by Rheem and Raypak for harsh environments and modern saltwater pools, the AVIA HD NiTek series replaces standard copper with a specialized high-nickel alloy heat exchanger offering superior erosion resistance and scale protection. Available in 264,000 BTU/h and 399,000 BTU/h capacities for natural gas or propane, the AVIA HD delivers 84% thermal efficiency, a 2 ft by 2 ft pad footprint, straight-tube flow dynamics, and built-in Wi-Fi monitoring via the Raymote app.
Technical specifications
| Heating Type | Gas Heater |
|---|---|
| Warranty | 3-Year Full Heater Warranty. For all residential replacements & new builds. Source: Rheem warrantyWarranty is provided by the manufacturer under its own terms. See the source link for full details. |
Key features
- NiTek nickel-alloy heat exchanger: engineered with 900% more nickel content than standard cupronickel, delivering maximum defense against corrosion, scale, and high-velocity water erosion in saltwater pools.
- Patented straight-tube design: continuous straight-tube geometry eliminates restrictive u-bends and helical coils, ensuring uniform heat transfer and simplified mechanical inspection.
- ProTek Shield galvanic protection: factory-integrated sacrificial zinc anode module neutralizes galvanic currents between dissimilar metals, extending overall heat exchanger longevity.
- Integrated Wi-Fi & smart ecosystem control: on-board Raymote Wi-Fi enables real-time pool temperature management, automated heating schedules, and service diagnostics directly from a smartphone.
- Auxiliary dry-contact relay: built-in terminal P9 AUX relay allows direct scheduling and automation of a single auxiliary pool component, such as an external pump, chlorinator, or water feature.
- 3-sided rotatable digital control display: high-contrast digital interface rotates in 90-degree increments to provide direct viewing regardless of plumbing pad orientation.
Sizing guide
| Model | Thermal input | Typical pool surface area | Typical pool volume | Recommended application |
|---|---|---|---|---|
| AVIA HD 264A | 264,000 BTU/h (77.4 kW) | Up to 600 sq ft | Up to 75,000 L (20,000 US gal) | Mid-size in-ground pools and rapid stand-alone spa heating |
| AVIA HD 404A | 399,000 BTU/h (116.9 kW) | Up to 1,000 sq ft | Up to 130,000 L (34,000 US gal) | Large residential pools, exposed locations, and extended shoulder seasons |
Specifications
| Parameter | AVIA HD 264A | AVIA HD 404A |
|---|---|---|
| Thermal Performance | ||
| Thermal input rating | 264,000 BTU/h (77.4 kW) | 399,000 BTU/h (116.9 kW) |
| Thermal efficiency | 84% | 84% |
| Emissions profile | Low-NOx certified (< 40 ng/J) | Low-NOx certified (< 40 ng/J) |
| Heat exchanger alloy | Heavy-duty NiTek nickel alloy straight tube | Heavy-duty NiTek nickel alloy straight tube |
| Saltwater compatibility | Fully compatible with all residential salt chlorination systems | Fully compatible with all residential salt chlorination systems |
| Galvanic corrosion protection | Integrated ProTek Shield sacrificial anode module | Integrated ProTek Shield sacrificial anode module |
| Fuel & Gas Supply | ||
| Available factory fuels | Natural gas or Liquid propane (factory dedicated) | Natural gas or Liquid propane (factory dedicated) |
| Gas pipe connection | 3/4 in. NPT female | 3/4 in. NPT female |
| Inlet gas pressure (Natural Gas) | 4.0 to 10.5 in. w.c. | 4.0 to 10.5 in. w.c. |
| Inlet gas pressure (Propane) | 11.0 to 13.0 in. w.c. | 11.0 to 13.0 in. w.c. |
| High altitude rating | Certified up to 1,371 m (4,500 ft) per CAN/CGA-2.17-M91 | Certified up to 1,371 m (4,500 ft) per CAN/CGA-2.17-M91 |
| Water Hydraulics | ||
| Water connection unions | 2 in. CPVC buttress unions with slip adapters included | 2 in. CPVC buttress unions with slip adapters included |
| Operating flow rate range | 20 to 125 GPM (76 to 473 L/min) | 20 to 125 GPM (76 to 473 L/min) |
| Internal water bypass | Factory-installed automatic mechanical bypass | Factory-installed automatic mechanical bypass |
| Maximum operating pressure | 50 psi (345 kPa) | 50 psi (345 kPa) |
| Electrical & Controls | ||
| Electrical supply voltage | 120/240 VAC, 1-phase, 60 Hz, 4 A maximum | 120/240 VAC, 1-phase, 60 Hz, 4 A maximum |
| Display & user interface | Digital touch controller, rotatable on 3 sides | Digital touch controller, rotatable on 3 sides |
| Smart connectivity | Integrated Wi-Fi with Raymote mobile app | Integrated Wi-Fi with Raymote mobile app |
| Auxiliary relay output | Terminal P9 AUX dry-contact relay | Terminal P9 AUX dry-contact relay |
| Dimensions & Weight | ||
| Cabinet finish | Cool dark gray metallic powder coat | Cool dark gray metallic powder coat |
| Width | 590 mm (23.22 in.) | 590 mm (23.22 in.) |
| Depth | 772 mm (30.38 in.) | 772 mm (30.38 in.) |
| Height | 828 mm (32.61 in.) | 828 mm (32.61 in.) |
| Base footprint | Fits standard 610 mm × 610 mm (24 × 24 in.) pad | Fits standard 610 mm × 610 mm (24 × 24 in.) pad |
| Operating weight | 61.2 kg (135 lb) | 61.2 kg (135 lb) |
| Shipping weight | 70.2 kg (155 lb) | 70.2 kg (155 lb) |
Before you buy
- Gas lines and meter regulators must be verified and installed by a licensed gas technician in compliance with CSA B149.1 Natural gas and propane installation code.
- Electrical supply requires a dedicated 15 A 120 V or 240 V circuit compliant with Canadian Electrical Code (CSA C22.1) and bonded to the pool bonding grid with a minimum 6 AWG copper conductor.
- Maintain minimum clearances from combustible surfaces: 6 in. rear, 6 in. sides, 24 in. front service access, and 48 in. overhead clearance for outdoor atmospheric venting.
- Maintain balanced water chemistry (pH 7.4–7.6, total alkalinity 80–120 ppm, calcium hardness 200–400 ppm) to ensure optimal operating efficiency.
- For Canadian winter shutdown, drain water completely from both headers and internal heat exchanger tubes via the manifold drain plugs and blow clear with compressed air.
Have questions regarding pool heater BTU sizing, gas piping runs, or pad placement? Request a product quote and our equipment specialists will confirm equipment specifications for your property.
Frequently asked questions
Can the AVIA heater connect to Wi-Fi?
Yes. The AVIA features built-in Wi-Fi and Bluetooth enabled Raymote technology, enabling direct remote monitoring, timer control, and maintenance alerts via the Raymote mobile app without third-party automation hubs.
Is the AVIA certified as Low-NOx?
Yes. The fan-assisted combustion system produces ultra-low NOx emissions below 14 ng/J, exceeding Canadian and North American clean air emission requirements.
What are the outdoor installation clearance requirements?
Maintain 12 inches (305 mm) of clearance on sides and rear from combustible walls, 24 inches (610 mm) of service access in front of the control panel, and unrestricted overhead clearance above the top exhaust louver.
Can the AVIA be field-converted between Natural Gas and Propane?
No. The AVIA is factory-configured for either Natural Gas (EN models) or Propane (EP models) with calibrated burner orifices and gas valve springs. Field fuel conversions must only use official manufacturer conversion kits performed by a licensed gas technician.
How is the AVIA drained for winter in Ontario?
Shut off the gas supply and main electrical disconnect, remove the drain plugs from both the in/out water header and return header, open pressure relief valves, and verify complete water drainage before frost arrives.
Documents
- Technical brochure and sizing guide — Rheem AVIA HD NiTek pool heater (RP-P-600-1) (PDF)
- Installation and operation manual — Rheem AVIA pool heater models 264A and 404A (100-10000111) (PDF)
- Diagnostic and tool box guide — Rheem AVIA heater parts and troubleshooting (RP-P-600-5) (PDF)
- Raymote quick start guide — Wi-Fi connectivity and mobile app setup (241945) (PDF)
Specifications derived from Rheem/Raypak AVIA HD NiTek technical brochure RP-P-600-1 REV E, AVIA Installation & Operation Manual P/N 100-10000111 Rev 12, and Raymote Quick Start Guide 241945. Specifications are subject to change by the manufacturer. View the AVIA Installation Manual (PDF).
Common questions
Is installation included?
No. AVL Shop sells equipment only. Installation is done by an independent licensed contractor that you hire.
How is freight charged?
Freight cost is included in your written quote before you pay.
What warranty does this product have?
The manufacturer warranty applies. Where we have the manufacturer’s exact wording, it is shown in the Warranty row of the specifications on this page, with a link to the source.
How do I get a quote?
Use Request a quote on this page and send the model and your city or postal code.