RAYPAK

AVIA HD Natural Gas P-R264A-EN-N (NiTek)

$3,890.00

SKU: 018044

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31 in stock

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AVIA HD Natural Gas P-R264A-EN-N (NiTek)
AVIA HD Natural Gas P-R264A-EN-N (NiTek)
$3,890.00
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Pool Heater Size Guide

Choosing the correct pool heater depends on pool size, desired heat-up time, climate, and heater type. Undersized heaters struggle to maintain temperature; oversized heaters heat faster with less runtime.

Heater Types Explained

Gas Pool Heaters (Natural Gas or Propane)

  • Fastest heat-up
  • Works in any climate
  • Higher operating cost

Best for: Quick heating, spas, occasional use

Electric Heat Pumps

  • Most energy-efficient
  • Slower heat-up
  • Performance depends on air temperature

Best for: Warm/moderate climates, consistent heating

Solar Pool Heaters

  • Lowest operating cost
  • Weather dependent
  • Slowest heat-up

Best for: Supplemental heating, sunny regions

BTU Requirements for Natural Gas and Propane
Based on Dimensions and Surface Area (sq. ft.)

Pool Dimensions Surface Area Minimum BTU
14′ x 28′ 392 130,700
15′ x 30′ 450 150,000
16′ x 32′ 512 170,700
18′ x 36′ 648 216,000
20′ x 40′ 800 266,700
24′ x 44′ 1,056 352,000

BTU Requirements for Heat Pumps
Based on Gallons

Pool Size (Gallons) Minimum BTU
Up to 15,000 90,000
15,000 – 25,000 110,000
25,000 – 35,000 130,000
35,000 – 50,000 150,000+

Hourly Temperature Increase
Based on Surface Area (sq. ft.) and BTU

Surface Area 250K BTU 350K BTU 400K BTU
300 2.0º 3.0º 3.5º
400 1.75º 2.5º 2.75º
500 1.5º 2.0º 2.5º
600 1.25º 1.5º 2.0º
700 1.0º 1.25º 1.5º
800 0.75º 1.0º 1.25º
1,000 0.5º 0.75º 1.0º

Gas Supply & Electrical Requirements (Very Important)

Gas Heaters

  • Must verify gas line size and meter capacity
  • Undersized gas supply = poor performance or ignition issues

Heat Pumps

  • Require dedicated breaker
  • Higher amperage draw
  • Longer electrical run considerations

⚠️ Heater sizing is meaningless if utilities are undersized.

Factors That Increase Heater Size Needs

You may need a larger heater if your pool has:

  • Attached spa
  • Waterfalls or spillovers
  • High wind exposure
  • Night swimming
  • Minimal sun exposure
  • Short heating windows (weekends only)

Common Heater Sizing Mistakes

❌ Choosing smallest BTU to save money
❌ Ignoring climate and wind
❌ Forgetting spa heating needs
❌ Not checking gas or electrical supply

✅ Size for how fast you want heat, not just pool volume

Replacing an Existing Heater?

Check the heater data plate for:

  • BTU input
  • Gas type (NG / LP)
  • Voltage & phase
  • Min/max flow rate

If upgrading, going one size larger almost always improves satisfaction.

If you’re unsure, contact us and we’ll help you choose the correct heater.

Managing your pool heater has never been easier or smarter. AVIA is built with an innovative Wi-Fi enabled control system that allows you to manage your pool heater with one accessory through the Raymote app – so no need for a separate control panel to manage your pool heater. 
With Raypak’s industry-first technology, NiTek, this AVIA HD is 300% more erosion resistant than copper, and 200% more than cupronickel.

Additional information

Weight 135.00 lbs
Dimensions 38.00 × 26.00 × 34.00 in
Port Size

Input Rate

Thermal Efficiency

Energy Type

Venting

Voltage

Max Water Flow

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