Pentair MasterTemp 400HD 400K BTU Natural Gas Heater. 460805
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The Pentair 460805 MasterTemp 400HD is a high-performance natural gas heater engineered for pools and spas requiring rapid heating and long-term durability. With a robust cupro-nickel heat exchanger, it excels in harsh water conditions, including low pH and high flow environments. Its compact design ensures minimal space usage, while the rustproof exterior withstands outdoor elements.
Key Features
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High Heating Capacity: Delivers 400,000 BTUs for quick heating of pools and spas.
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Cupro-Nickel Heat Exchanger: Offers superior resistance to corrosion and scale buildup.
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Smart Connectivity: Integrates with Pentair Automation Systems for remote monitoring and control.
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Energy Efficiency: Certified for low NOx emissions, meeting eco-friendly standards.
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User-Friendly Interface: Features a rotating digital display for easy operation and diagnostics.
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Durable Construction: Compact, rustproof exterior suitable for both indoor and outdoor installations.
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Optional Smart Bypass Valve: Reduces operational costs by diverting water flow when the heater isn't needed.
The Pentair 460805 MasterTemp 400HD Heater stands out for its combination of high performance, durability, and smart features, making it a top choice for pool and spa owners seeking efficient heating solutions.
Frequently asked questions
How do I size a pool heater?
Heater sizing follows pool surface area, the temperature rise you want and how exposed the pool is to wind. A larger BTU rating heats faster and cycles less; an undersized heater runs continuously and still struggles on cold nights. Gas heaters also need a gas line and meter capacity that can supply their rated input.
What is the part number for this heater component?
Pentair lists this heater component under part number 460805. Quote 460805 when you cross-reference against your equipment manual, an existing part, or a parts diagram, so you are comparing the same revision.
What routine maintenance does a pool heater need?
Keep water chemistry balanced, because low pH and high calcium hardness are the two most common causes of premature heat exchanger failure. Beyond that: keep the cabinet clear of debris, check for rodent nests before each season, and have the burner and gas train inspected periodically.
How do I confirm this fits my equipment?
Match the part number stamped on the component you are replacing, or look it up in the parts list for your Pentair equipment. If your model or serial number is not named on this page, send it to us before you order and we will confirm the fit.
Is this the complete heater or a replacement part?
Check the title and the specification section above. Heater listings and heater component listings share the same part-number format, so confirm whether you are buying a full appliance or a single serviceable component before ordering.
Is there a warranty on this heater component?
It carries the standard Pentair manufacturer warranty. The terms are set by Pentair, and on some equipment the coverage only applies when a licensed professional performs the installation. Keep the receipt and packaging until you have confirmed correct operation.