heating your pool, you make it possible to engage more often in swimming
exercise because you extend the hours and the season your pool may
heated pool prevents chilling and the problems caused by the loss
of too much body heat. Pediatricians say very young children are especially
susceptible to various respiratory infections which may result from
repeated chilling, and this is also true of elderly swimmers.
heated pool is a must for therapeutic benefits and when swimming for
relaxation. Doctors and Red Cross swimming experts recommend pool
temperatures of from 78° F for recreation and competitive sports swimming,
to 90° F or more for certain physical therapy patients.
are the costs involved in heating a pool?
there is the initial or one-time cost of the heater you select and
its hook-up or installation charge. Second, there is the monthly fuel
cost, which varies with the type of heating system you buy, the use
of your pool, the pool water temperature you prefer and other variables.
Third, there is the matter of annual or semi-annual maintenance and
costs can be kept to a minimum by installing an efficient, properly
using a good quality pool
cover; and, of course, keeping your filter clean and your heating
and filtering system well maintained.
hear a lot of praise for the pool cover. Is it merited?
certainly. A good insulating pool
cover can reduce heat loss by 50% or more, depending on your location
pool that is uncovered can lose up to 5° F overnight; a good cover
can cut that loss by half.
at night or whenever your pool is not in use, the pool cover can help
save fuel costs by cutting heat loss regardless of the type of heating
you utilize. And it can even make an unheated pool more "swimmable" by
helping to retain the sun’s energy that naturally heats the
pool during the daytime.
pool cover stops water evaporation when it is in place. It isn’t
the water loss that’s the big consideration here, it’s
the heat loss. Every gallon of water that evaporates from a pool takes
with it 6000 BTU’s of heat in the process, and a typical uncovered
pool loses 1 to 1½ inches of water a week through evaporation. For
a 20 by 40 foot pool, an inch of water amounts to 500 gallons—roughly,
a heat loss of more than 30 therms every seven days. (A therm is equal
to 100,000 BTU’s).
stopping heat loss, a cover saves on pool chemicals, too, by keeping
them from evaporating with the water.
do I do about heating a spa that’s part of my pool?
Teledyne Laars/ Jandy heater can serve both your pool and spa. Our
Model ESC heater is equipped with a switch that allows you to select
either a spa or pool setting, so that with proper plumbing and valving
you can heat the spa portion of your pool installation to the temperature
are the advantages of a separate spa?
these spas were purchased primarily by people with specific physical
disabilities requiring hydrotherapy. Today, however, the spa is recognized
as a place where anyone can relax and enjoy relief from the stresses
of daily activities as well as from aches and pains requiring hydrotherapy.
The spa, built as part of the main pool, is walled off with its own
water circulation system. Both can use the same filter and heater
system with simple controls to switch from one to the other. A spa
typically operates at about 100° F and provides a therapeutic whirlpool
effect by means of high velocity water jets or bubbles.
is important to know that use of a spa at high temperatures can be
hazardous, particularly in conjunction with alcohol or drugs, or when
a person is very young, very old, pregnant, or in poor health. The
U.S. Consumer Product Safety Commission can provide guidelines for
spa use. Consult your physician as to a safe temperature for you and
types of heating are available to us?
the sun itself to gas-fired, oil-fired, electric and elaborate solar
most widely used type is the direct fired natural gas heater because
of its low cost, reliability, ease of operation and the wide availability
of natural gas. In areas where natural gas is not available, heater
models can be furnished equipped to use LP gas or propane gas.
pool heaters are a good choice in areas where natural gas is unavailable
but home heating oil is. Electric heaters are generally much less
efficient and more costly to operate than natural gas heaters, unless
the electricity is hydroelectrically generated.
heating ranges from simple "passive" solar—the familiar pool
cover that absorbs and transmits some of the sun’s energy
to pool water—to "active" solar
alone, the passive heating technique merely serves to help keep pool
temperatures at existing levels by retaining natural solar heat and
preventing its loss. It cannot add heat to build up water temperature
beyond what the sun supplies. Active solar uses traditional pool motors
to move water from the pool through a system of solar collector panels
for heating by the sun. This increases the amount of solar heat added
to the pool.
not go strictly solar? After all, it’s free.
exactly—in fact, not by long shot. An adequate solar pool heating
system will cost... (continued......)
The information on this
page is provided by Teledyne Laars/ Jandy, a leader in the Pool Heating
Industry, from their brochure "Facts about pool heating"
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