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.

• Flow / Capacity: Heats up to large residential pools with 200,000 BTU input

• Coverage: Ideal for most residential in-ground pools and spas

• Compatibility: Designed for natural-gas service; standard 120/240 V single-phase connection

• Warranty: Two-year when professionally installed

Call-out badges: 30-Day Returns • Low NOx Certified • Eco-Select Choice

Ideal For

• Homeowners with in-ground pools looking to extend their swim season

• Upgrading from older, inefficient pool heaters

• Compact equipment pads or retrofit applications where space is tight

• 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

• Save on fuel costs: High-efficiency design means less gas used per hour of swim time

• Longer swim season & faster heat-up: Get usable water sooner in the day or cooler weather

• Space-efficient footprint: Perfect for installs where older bulky heaters won’t fit

• Quiet, reliable operation: Minimal noise and premium components for long-term durability

Specs & What’s in the Box

Specifications

• Dimensions: 23.02″ W × 32.61″ D × 28.15″ H

• Weight: ~128 lbs (Natural-Gas Model 460730)

• Materials: Rust-proof composite exterior; copper or cupro-nickel heat exchanger options

• Electrical: 120/240 V single phase, 60 Hz

• Fuel Type: Natural Gas

In the box

• MasterTemp 200 Natural Gas Heater (460730)

• User manual and installation guide

• 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

• ⭐⭐⭐⭐⭐ Trusted Pentair quality and support

• Ships from authorized Pentair dealers

• Backed by a nationwide service network

Install Steps (Compact)

1. Turn off pump and gas supply

2. Remove your old heater and cap plumbing/gas lines

3. Mount MasterTemp 200 level on pad, connect plumbing and gas line

4. Connect 120/240 V power, configure display and venting

5. Test operation, check for leaks, and confirm heating performance