Universal H-Series
POOL AND SPA HEATERS
Right for so many
reasons. Perfect for
so many applications.
Selecting the correct size
H-Series heater:
For Your Spa or Hot Tub
Determine your spa capacity in gallons (surface area x average depth x 7½).
The reference table lists the time required in minutes to raise the temperature of the
spa/hot tub by 30˚F. In the table below, locate the column with the spa/tub size in gallons
that is closest to yours. Select the desired time to raise the spa/hot tub temperature 30˚F,
read to the left and select the appropriate H-Series model.
This guide can be adjusted for other temperature rises. For example, if you desire a 15˚F
increase in temperature, simply divide the time for 30˚F rise by the ratio of 30/15, or 2.
Note: Heat lost and/or heat absorbed by spa walls or other objects will add to the time
it takes the spa to heat up.
Spa sizing is based on an insulated and covered spa. Always cover your spa or hot tub
when not in use to minimize heat loss and evaporation.
For Your Swimming Pool
Determine your pool’s surface area in square feet:
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 fi t the
selected area.
For indoor pool installations, divide the pool’s
surface area by 3.
Table is based on a 30°F temperature rise, 3½ mph average
wind velocity and elevation of up to 2,000 feet above sea level.
AB
LR
L
W
Area = (A+B) x L x .45 Area = R x R x 3.14 Area = L x W
MODEL SURFACE AREA
H400 1,200
H350 1,050
H300 900
H250 750
H200 600
H150 450
MODEL
SPA/TUB SIZE IN GALLONS
200 300 400 500 600 700 800 900 1,000
Time in Minutes to Raise Spa/Tub Temperature 30˚F
H400 9 14 19 23 28 33 37 42 47
H350
11 16 21 27 32 37 43 48 54
H300 12 19 25 31 37 44 50 56 62
H250 15 22 30 37 45 52 60 67 75
H200 19 28 37 47 56 66 75 84 94
H150 25 37 50 62 75 87 100 112 125
Hayward, Hayward Energy Solutions, Totally Hayward and
FireTile are registered trademarks of Hayward Industries, Inc.
©2011 Hayward Industries, Inc.
Specifi cations and
Dimensions:
H-Series heaters are available in a comprehensive range of BTU sizes for natural or propane
gas. All units are certifi ed by the Canadian Standards Association and carry the exclusive
Hayward
®
warranty.
H250 H200 H150
BTU/Hr. 250,000 200,000 150,000
Width (Inches) 27" 24½" 21½"
Depth (Inches) 27½" 27½" 27½"
Height (Inches) 28½" 28½" 28½"
Water Connections 1½" x 2" 1½" x 2" 1½" x 2"
Heat Exchanger Cupro Nickel Cupro Nickel Cupro Nickel
Indoor Vent Pipe Diameter (Inches) 7" 7" 6"
HWS Stack Height (Inches) 17¼" 15¼" 14"
Heater Weight (lbs.) 144 141 131
Gas Connection at Heater ¾" ¾" ¾"
H400FD H350FD H300FD H250FD H200FD H150FD
BTU/Hr.
400,000 350,000 300,000 250,000 200,000 150,000
Width (Inches)
36" 33" 30" 28" 25" 21"
Depth (Inches)
29½" 29½"29½"29½"29½"29½"
Height (Inches)
24" 24" 24" 24" 24" 24"
Water Connections
2" x 2½" 2" x 2½" 2" x 2½" 2" x 2½" 2" x 2½" 2" x 2½"
Heat Exchanger
Cupro
Nickel
Cupro
Nickel
Cupro
Nickel
Cupro
Nickel
Cupro
Nickel
Cupro
Nickel
Indoor Vent Pipe
Diameter (Inches)
8" 8" 8" 6" 6" 6"
Heater Weight (lbs.)
160 158 145 134 123 110
Gas Connection
at Heater
¾" ¾" ¾" ¾" ¾" ¾"
Universal H-Series Heater
Millivolt Heaters
LITHS11
Total System: Pumps I Filters I Heating I Cleaners I Sanitization I Automation I Lighting I Safety I White Goods
HEATING
Effi ciency. Performance. Innovation.
Whether you want to extend your swimming season or swim year-round, Universal H-Series
gives you comfort with effi ciency. It’s the perfect addition to your Totally Hayward
®
System.
To take a closer look at Universal H-Series Heaters or other Hayward products, go to
www.haywardpool.com or call 1-888-HAYWARD
620 Division Street I Elizabeth, NJ 07201
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