Hayward Spa Heater Selection Guide

Determine your spa capacity ingallons (surface area x average depth x 71/2). The reference table lists the time required in minutes to raise the temperature of the spa/hot tun size in gallons. Select the desired time to raise the spa/hot tub temperature 30 degrees F, read to the left and select the appropiate heater. This guide can be adjusted for the other temperature rises. For example, if you desire a 15 degree increase in temperature, simply divide the time for 30 degrees F by the ratio of 30/15=2. NOTE: Heat losses and or heat absorbed by spa walls and other objects will add to heat up time. 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.

Recommended H100 Induced Draft Model for Spas Time in minutes to Raise Spa/Hot Tub Temperature SPA/HOT TUB SIZE IN GALLONS

Model 200 300 400 500 600 700 800 900 1000 H100 38 56 74 94 112 132 150 168 188

Recommended H100 Induced Draft Model for Above Ground Pools H100 Induced Draft Heater will raise temperature of an Above Ground Pool in a 8 Hour period. TEMPERATURE RISE IN 8 HOURS

Pool Size Gallons Average Temp Rise (F) 15' Round 5,300 15.2 18' Round 7,600 10.4 12'x24' Rectangle 8,600 9.6 21' Round 10,000 8.0 24' Round 13,500 5.6 27' Round 17,000 4.8

We highly recommend that your Hayward Above Ground Pool heater be used in conjunctio with a solar blanket to maximize your heating efficiency.

Recommended CSpaX1 Models Model time in minutes to Raise Spa/Tub Temperature 30 Degrees F SPA/TUB Size in Gallons

200 300 400 500 600 700 800 900 1000 CSPAX155 156 237 318 399 480 558 639 720 798 CSPAX11 93 126 159 201 240 279 321 360 300

Example: Want a 400 gallon spa to go from 70 Degrees to 100 Degrees in 30 minutes? 100 degrees minus 70 degrees = 30 degrees Requested Temperature Rise Recommend H-Series Model Heater - H250

Page Created: 02/01/06