Pentair Mastertemp 200 Natural Gas Heater, 128LBS, 200K BTU, 120/240 VAC | 460730
Product Overview
Pentair MasterTemp 200 (460730) – Fast-Heating, High-Efficiency Natural-Gas Pool & Spa Heater
Designed for pool owners wanting year-round comfort, this heater delivers rapid warm-up, durable construction, and smart controls—so you get reliable heat without bulky gear or high emissions.
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Flow / Capacity: Heats up to large residential pools with 200,000 BTU input
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Coverage: Ideal for most residential in-ground pools and spas
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Compatibility: Designed for natural-gas service; standard 120/240 V single-phase connection
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Warranty: Two-year when professionally installed
Call-out badges: 30-Day Returns • Low NOx Certified • Eco-Select Choice
Ideal For
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Homeowners with in-ground pools looking to extend their swim season
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Upgrading from older, inefficient pool heaters
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Compact equipment pads or retrofit applications where space is tight
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Eco-conscious users wanting low NOx emissions and high efficiency
Key Features
1) 200,000 BTU High Output — Delivers enough power to heat sizeable pool volumes quickly, so you’re swimming sooner.
Why it matters: Shorter wait-times at startup = more usable pool hours.
2) Compact & Quiet Design — At approximately 128 lbs and measuring 23″ W × 32″ D × 28.15″ H, it fits snug equipment pads.
Why it matters: Fits in tighter spaces with less visual clutter or noise.
3) Digital Controls + Low NOx Emissions — Includes a rotating digital display, diagnostics, hot-surface ignition (no pilot light), and certified low NOx output.
Why it matters: Easier monitoring and greener operation.
Benefits
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Save on fuel costs: High-efficiency design means less gas used per hour of swim time
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Longer swim season & faster heat-up: Get usable water sooner in the day or cooler weather
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Space-efficient footprint: Perfect for installs where older bulky heaters won’t fit
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Quiet, reliable operation: Minimal noise and premium components for long-term durability
Specs & What’s in the Box
Specifications
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Dimensions: 23.02″ W × 32.61″ D × 28.15″ H
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Weight: ~128 lbs (Natural-Gas Model 460730)
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Materials: Rust-proof composite exterior; copper or cupro-nickel heat exchanger options
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Electrical: 120/240 V single phase, 60 Hz
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Fuel Type: Natural Gas
In the box
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MasterTemp 200 Natural Gas Heater (460730)
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User manual and installation guide
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Basic hardware for pad mounting
Compatibility & Replacements
Works with: Most residential pool systems configured for natural-gas heating
Replaces: Older gas heaters of similar 200K BTU output range
Not compatible with: Propane service (see model 460731) or ASME-certified installations (model 461000)
Q&A
Will this fit my pool heater pad or space?
A: If your equipment pad can support about 128 lbs and offers at least 23″ width × 32″ depth, you’re good to go. Always verify local code clearances.
How long does it last?
A: With proper water chemistry and regular maintenance, you can expect many years of reliable service.
What’s the warranty?
A: Two-year warranty when professionally installed; 60-day warranty for non-professional installs.
Is installation DIY-friendly?
A: Gas line and plumbing connections require professional installation to meet safety and warranty standards.
What maintenance is required?
A: Keep the heater cabinet clean, maintain balanced pool water, inspect the ignition system annually, and ensure proper flow.
Trust Builders
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⭐⭐⭐⭐⭐ Trusted Pentair quality and support
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Ships from authorized Pentair dealers
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Backed by a nationwide service network
Install Steps (Compact)
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Turn off pump and gas supply
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Remove your old heater and cap plumbing/gas lines
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Mount MasterTemp 200 level on pad, connect plumbing and gas line
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Connect 120/240 V power, configure display and venting
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Test operation, check for leaks, and confirm heating performance