GAS POOL HEATING
|Indoor or outdoor?|
|What size to use||Cost effectiveness|
The ideal temperature for leisure swimming is around 25 to 26 degrees Celsius. This temperature is very rarely achieved naturally. For most of the swimming season, the normal water temperature would be around 18 to 20 degrees. Most of the temperature gained during the day is lost overnight, leaving the pool cold again in the morning.
Gas heating can quickly and efficiently heat your pool to a comfortable temperature for swimming whenever it is required. This means you can extend your swimming season for as long as you like, thus increasing the return on what was probably a fairly large investment in your pool.
The increased availability of natural gas and LPG has made it a popular
form of swimming pool heating. The fact that it is always available and
can be closely regulated makes it ideal for use on pools and spas where
particular temperatures are required.
Gas heaters have an input rating which is expressed in Megajoules (MJ), which is a measure of fuel energy consumption, and an energy output rating expressed in Kilowatts (kW).
The smaller heaters are in the range of 60 to 100 MJ with larger heaters
ranging through 250 up to 400 MJ. The output of heaters will range from
25 to 100 kW.
Selecting the right size heater depends on a number of factors. The size of the pool and/or spa.
The maximum temperature you would like to achieve and the heat up time required.
When determining the size of the pool, consideration must also be given
to whether or not the heater is required to heat the spa as well as the
pool. Most people want to be able to heat their spa quickly and to a much
higher temperature than the pool, so a heater should be selected with
this in mind. If it is only the pool to be heated, remember, it does not
really matter if it takes a little longer and also the temperature rise*
will be less, so perhaps a smaller heater could be considered. The points
to remember are;
- Amount of water to be heated (in Litres)
- The temperature you wish to achieve
- How long you are prepared to wait
* “Temperature rise” is the difference
between the ambient or cold water temp and the required temperature
It is preferable that all gas heaters be fitted with thermostatic controls. However, heaters connected to spas must have a thermostatic control with a maximum set temperature of 40 degrees.
Again there are various levels of controls available, with some heaters
being fitted with in-built timeclocks and other even more sophisticated
controls. Choose the one that best suits your budget but also consider
your lifestyle and the way in which you intend to use your pool and/or
spa. Don't overlook the possibility of obtaining some long term benefits
from a short term cost.
Gas heaters come in a number of configurations to suit particular installations. Be sure the heater you select is the one most suitable for your requirements. ie: Heaters to be installed indoors require special fluing and may require additional ventilation specifically designed to suit the size and type of heater to be used. Heaters designed to be placed outdoors should not be used inside without the appropriate flue or the manufacturers consent.
Whilst most gas heaters these days are designed and constructed to last along time in all conditions, consideration should always be given to protecting the heater from the elements. Heaters should always be installed on a stable, non-combustible base, preferably a minimum of 50mm above ground level.
Warning: When gas heaters are used on salt chlorinated pools, care should
be taken to ensure the production of chlorine is adjusted to suit either
the spa or the pool, as internal components could be damaged by excessive
salt or chlorine levels. This is particularly important when operating
for extended periods during heat-up.
Gas pool and spa heaters are cost efficient and relatively inexpensive as far as running costs are concerned. They provide the added convenience of being instantly available whenever you decide to heat the pool or spa. By utilising thermostatic control, the temperature of your pool can be maintained at the level you select, despite the weather conditions.
Using a gas heater to boost a solar heating system can also extend the
swimming season and using a pool blanket will reduce operating costs.
New Pool Pre-Contract Consumer Information
BSA Approved Contract Information Statement
Watertight Contract Benefits
Information on water restrictions and useage.
Information on flood water inundation of swimming pools
Safely Operating Your Pool
The Royal Life Saving Society Queensland has information, guidelines and standards about safely operating a swimming pool.