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The Hayward® H-Series features a wealth of advances. All delivering precision water temperature control, achieving the ideal comfort level. Built to withstand even the harshest of conditions, the H-Series is the first line of heaters to offer a rust-resistant water path. And, like all Hayward products, the H-Series line is designed to the most exacting standards of any pool system. With the H-Series, Hayward delivers the complete package.


Selecting the H-Series that's right for you
The Hayward H-Series line of pool and spa heaters incorporates the most advanced technology to provide lavish comfort, energy-efficient operation and long-lasting dependability. When you select the H-Series that meets your specific needs, you'll be turning up the heat in confidence, with the precision, comfort and control you've come to expect from the leader in pool systems.


Electronic Heaters
The most advanced technologies. Impressive dependability. You'll find it in the Direct Spark Ignition, firing without fail in windy conditions, keeping the temperature consistent and your fuel costs down. Consider the addition of a fuel-effecient, digitally precise system that transforms water into pure comfort.
Induced Draft Heaters
The induced draft system provides lavish comfort, control and a state-of-the-art heating environment that is impervious to wind and other environmental factors. Its pre-mix burners provide an environmentally friendly low NOx system with the highest efficiency rating in the industry. Installation is a snap with voltage that adapts to either 110V or 220V.
Millivolt Heaters
The millivolt system is the right choice for budget-oriented pool and spa applications, helping to extend you pool season and enhance your pool experience. This system offers high-performance flow control management and a "V" Groove Finn Plate for fast heating and virtually no condensation.

H-Series Features Induced Draft Electronic Millivolt Advantage
Thermal Efficiency
84%
80%-82%
80%-82%
More heat for less money
Control Panel
Digital Thermostat
Digital Thermostat
Mechanical Thermostat
Simple setting of temperature and on-board diagnostics
Burner System
Pre-mix Low NOx
Eugenox
Eugenox
Pre-mix burners are environmentally friendly and efficient.
Ignition System
Silicon Nitride
Direct Spark
Standing Pilot
More reliable lighting
Heat Exchanger
Finn Plate
Finn Plate
Finn Plate
Heats quickly and consistently
Patented Polymer Headers and Stainless Steel Tube Sheets
Yes
Yes
Yes
Reliable rust-resistant water path
Flow Control Management System
Thermal Control Valve
Thermal Control Valve
Thermal Control Valve
Regulates water flow to heat efficiently and eliminates condensation
Combustion Chamber
1" FireTile®
1" FireTile®
1" FireTile®
State-of-the-art combustion chamber to maximize heat retention and stretch energy dollars
Warranty
1 Year Parts
1 Year Parts
1 Year Warranty
Peace of mind

Selecting the correct size H-Series heater - for your swimming pool
Determine your pool's surface area in square feet:

Model
Surface Area
H400
1200
H350
1050
H300
900
H250
750
H200
600
H150
450
In this table, locate the surface area that is equal to or just greater than the pool's surface area. To the left of this number is the appropriate H-Series model that will fit the selected area.

For indoor pool installation, divide the pool's surface area by 3.

Table is based on a 30°F temperature rise, 3 1/2 mph average wind velocity and elevation of up to 2,000 feet above sea level.

Specifications and Dimensions
 
H400
H350
H300
H250
H200
H150
BTU/Hr.
400,00
350,000
300,000
250,000
200,000
150,000
Width
35 1/4"
32 1/2"
29 3/4"
27"
24 1/2"
21 1/4"
Depth
27 1/2"
27 1/2"
27 1/2"
27 1/2"
27 1/2"
27 1/2"
Height
28 1/2"
28 1/2"
28 1/2"
28 1/2"
28 1/2"
28 1/2"
Flue Outlet Diameter
9"
9"
8"
7"
7"
6"
Flue Pipe Diameter
10"
10"
9"
7"
7"
6"
Stack Height
DHI
31 1/2"
31 1/2"
30 3/4"
28 1/2"
28 1/2"
22 1/2"
HWS
19 1/2"
17 1/4"
17 1/4"
17 1/4"
15 1/4"
14"
Heater Weight (lbs.)
200 lbs.
185 lbs.
157 lbs.
144 lbs.
141 lbs.
131 lbs.
Gas Connection at Heater
3/4"
3/4"
3/4"
3/4"
3/4"
3/4"
H-Series heaters are available in a comprehensive range of BTU sizes and options, including 1 1/2" and 2" water connections, millivolt and electronic temperature control, and natural or propane gas. All units are certified by the American Gas Association and carry Hayward's exclusive warranty.

Ordering Information
All In-Ground Pool Accessories are not available for purchase on our site.
Please call one of our friendly representatives to ask any questions or to place an order!

1-800-356-3056
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