Pentair MasterTemp 400,000 BTU Natural Gas Pool & Spa Heater – 460736
$4,799.00
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Pentair MasterTemp 400,000 BTU Natural Gas Pool & Spa Heater – 460736
$4,799.00
Available to order
Free standard shipping · eligible US orders
Standard shipping: 3–5 business days (estimated).
Pickup currently not available
Check delivery timing for your ZIP code
Large equipment may ship by freight and require a delivery appointment.
Final shipping options and applicable taxes are confirmed at checkout.
Water connection unions included: Includes the manufacturer's unions for connecting the water inlet and outlet. Additional piping and installation materials depend on your pool setup.
Pentair MasterTemp high-performance natural gas heater delivers fast, reliable heating for residential pools and spas. Its compact, weather-resistant design combines powerful output with straightforward digital operation.
Model details
- Model/Part number: 460736
- 400,000 BTU input
- Natural gas
- For pools and spas
- 120/240V, single phase
- Rotating digital display
- Low-NOx certified
- Compact, rust-resistant exterior
- Professional installation required
Fuel and heater sizing
This is the natural gas configuration. Confirm that your supply matches before ordering. Gas-heater BTU input is the fuel input rating; usable heat output also depends on thermal efficiency. Pool volume, starting water temperature, desired warm-up time and heat loss determine the capacity needed.
Installation requirements
A qualified installer should confirm gas-line capacity and pressure, electrical supply, water flow, equipment clearances and installation altitude. Indoor installations need the correct manufacturer-approved venting arrangement. Check the existing pad and plumbing connection positions when replacing another heater; matching BTU size alone does not guarantee a direct fit.
Complete the installation
Site-specific gas fittings, electrical work, venting accessories and installation labor are separate. Maintain the manufacturer's water-balance targets and keep the circulation system in good condition to protect the heat exchanger.
Compatibility & installation
Check the exact model and the specifications above before ordering. For equipment and replacement parts, confirm the required voltage, connections, dimensions and compatibility with your existing system.
Need help? Contact us with your model number before purchasing. Equipment requiring electrical, gas or plumbing connections should be installed by a qualified professional.
Shipping & Delivery
We ship within the United States. Standard shipping is currently free for eligible destinations at checkout. Faster shipping options are shown when available for your order; the final options and charges appear at checkout.
Dispatch and arrival dates depend on the item, destination and shipping method. Need an estimated arrival date before ordering? Contact us with the product model and delivery ZIP code.
Large equipment may ship by freight and require a delivery appointment. Inspect the shipment on arrival, photograph visible damage and note it on the delivery receipt.
Returns
Eligible products may be returned within 30 days of delivery if new, unused, uninstalled and in their original packaging. A restocking fee of up to 20% may apply; return shipping and other conditions apply.