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Hayward
Pool/Spa Heater Selection Guide
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Note:
The information provided here is for reference only
so you can identify the appropriate pool/spa heater(s)
and possibly get an estimate on cost. For an authoritative
determination of which pool/spa heater(s) are suitable
for your application it is a good idea to have a pool
professional make on-site survey of your pool/spa. You
can also get assistance from Hayward sales/technical
support team for contact information visit www.haywardnet.com
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| Determining
the Size of your |
| In-ground
Swimming Pool |
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Step
1. - Determine Your Swiming Pool Surface Area
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| Step1 |
Select
which one of the above pool shapes closesly resemble
your swimming pool |
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| Step
2 |
Calculate
Surface Area using the formulas associated to
your pool type
| Rectangular
Pool; Surface Area = L x W |
| Kidney-shaped
Pool; Surface Area = (A+B) x L x 0.45 |
| Circular
Pool; Surface Area = R x R x 3.14 |
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| Step
3 |
Determine
the amount of water in your pool |
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Step
2. - Identify the Appropriate H-Series Model
Use the table below to determine the correct H-Series
pool heater
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Model
- BTU
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Natural
Gas
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Propane
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Surface
Area sq. ft.
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1200
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950
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900
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750
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600
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450
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Low
NOx Series for California and Texas
| Model |
Description |
BTU
(1000s) |
Gas
Type |
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Hayward
H-Series Low NOx, Natural gas |
250
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Natural
Gas |
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| H250iDpL2 |
Hayward
H-Series Low NOx, Propane |
250
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Propane |
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| H350iDL2 |
Hayward
H-Series Low NOx, Natural gas |
350
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Natural
Gas |
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| H350iDpL2 |
Hayward
H-Series Low NOx, Propane |
350
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Propane |
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| H400iDL2 |
Hayward
H-Series Low NOx, Natural gas |
400
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Natural
Gas |
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| H400iDpL2 |
Hayward
H-Series Low NOx, Propane |
400
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Propane |
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| Heater
Sizing for aboveground pools |
FOR
ABOVE-GROUND POOLS AND OUTDOOR USE ONLY
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The
Hayward H100 Induced Draft above-ground with electronic
direct spark ignition system and energy-efficient
FireTile lined combustion chamber is an ideal choice
for heating above-ground pools. The H100ID1 comes
in 100,000 BTU natural gas version and the H100IDP1
comes in 100,000 BTU propane version. The table
below shows different "Pool Size" types
and the corrosponding temperature rise when using
the Hayward Induced draft above-ground pool heater.
It is highly recommended that your Hayward above-ground
pool heater be used in conjuction with a solar blanket
to maximize your heating efficiency. |
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Temperature
rise in 8 hours for model H100 Induced Draft Heater
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Pool
Size
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Gallons
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Avg.
Temp rise (f)
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15'
round
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5,300
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15.2"
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18'
round
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7,600
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10.4"
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12'
x 24' rec.
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8,600
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9.6"
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21'
round
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10,000
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8.0"
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24'
round
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13,500
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5.6"
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27'
round
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17,500
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4.8"
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Heater
Selection for
Spa or Hot Tub
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| Determine
your spa capacity in gallons (surface area x average depth
x 7.5) |
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You
may select the Hayward Induced Draft 100,000 BTU pool/spa
heater or the H-Series Heaters for Spas / Hot Tubs.
The
reference table below lists the time time required in
minutes to raise the temperature of the spa/hot tub
by 30 degrees Farenheit. Locate in the table below the
spa/hot tub size in gallons. Select the desired time
to raise the spa/hot tub temperature 30 degrees Farenheit,
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 degrees Farenheit increase
in temperature, simply devide the time for 30 degrees
Farenheit by a ratio of 30/15 or 2.
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| Note:
Heat losses and/of heat absorbed by spa wall or other
objects will add to the time is take 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. |
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H100 Induced Draft performance for Spas / Hot Tubs
| Model |
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Spa/Tub
Size in Gallons
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200
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300
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400
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500
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600
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700
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800
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900
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1000
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Time
in Mins to raise temp. os spa or tub to
30 degree F.
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| H100 |
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38
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56
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74
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94
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112
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132
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150
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168
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188
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H-series
heaters selection guide for
Spas / Hot Tubs
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Spa/Tub
Size in Gallons
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200
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300
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400
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500
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600
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700
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800
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900
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1000
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Time
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in
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min.
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to
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raise
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temp
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to
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30
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degree
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9
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14
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19
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23
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28
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33
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37
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42
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47
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11
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16
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21
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27
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32
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37
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43
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48
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54
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1
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19
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25
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31
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37
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44
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50
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56
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62
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15
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22
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30
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37
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45
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52
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60
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67
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75
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19
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28
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37
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47
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56
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66
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75
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84
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94
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25
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37
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50
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62
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75
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87
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100
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112
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125
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High
wind stack
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Indoor
drafthoods
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