Pool Heating

Solar ---- I would say ... it depends. Solar is a great option for those who are concerned about the environment or their wallet. Options include solar blankets or covers as well as panel systems that mount on your roof. Other heating options would be a natural gas heater or heat pump. Many of the newer models are more efficient than they were ten years ago. http://shop.bluehaven.com/lp-general-solar-blankets http://shop.bluehaven.com/category/in-ground-pool-heating

Sun Rings are safer, most are capable of generating more heat that a solar cover. The effect is that Solar Sun Rings with 70% to 80% coverage outperform bubble pack covers with 100% coverage.

cheers

mark tahiliani (jm)

Yes, I have used it for more than 5 month(total) now. The important part is how powerful your pump is. I am using the 1500 GPH pump.

Water has a very high specific heat capacity, which means you need to put a lot of energy into a given quantity of it to raise the temperature a given amount. The specific heat capacity of water is 4.187 kJ/kgK, which means you need to put in 4 kJ of energy to raise the temperature of one kg of water by 1 K (or 1C) Compare this to the specific heat capacity of air which is 1.0 kJ/kgK, or 25% of that of water. Therefore, you need to put in four times as much energy to heat up a given mass of water as compared to a given mass of air. One kilogram of air has a volume of about 29 cubic feet at 1 atmosphere, and a kilogram of water is a liter. It takes 4 times as much thermal energy to raise the temperature of that liter of water by a degree as it does to raise that 29 ft3 of air that same one degree. To do an additional comparison, you could picture a room that is 11' x 11' x 11' in volume. Elevating the temperature of the air in that room one degree will lift the temperature of that liter of water by the same one degree.

bubbles down

On a Raypak heater, the pilot light is typically located near the burner assembly, usually at the bottom of the unit. It can be accessed by removing the front panel or cover of the heater. The pilot light is a small flame that ignites the main burner when the heater is activated. Always refer to the specific model's manual for precise instructions and safety information.

The temperature should be around 20 to 25 degrees.

This is incorrect; at 20 - 25° F the water would be ice and at these temperatures C (68 - 77 F) the water would be way too cold to be considered a spa/hot tub. For children the water should be kept between 98°F to 102°F or 37°C to 39°C. A child should never spend more than 15 minutes in a spa/hot tub without exiting to cool off for at least 5 minutes. A child's body cannot regulate its internal temperature as well as an adult; these high temperatures can lead to several health issues that can become life threatening. NEVER leave a child in a spa/hot tub unattended.

when it was new aqbout 20-25 years ago the engine itself was probably $300-$400 dollars the buffalo handpiece about 150-200 dollars, and the arm with pullys also 150-200 dollars

Great question except 1- What is the BTUH being used 2- What is the ambient temperature 3- Latient heat?

ASHRAE PUBLISHES DATA THAT DOCUMENTS PERFORMANCE FIGURES ON ALL APPROVED MANUFACTURED SYSTEMS AND COMBINATIONS OF INDOOR/ OUTDOOR UNITS/ COILS, ETC. THEY TEST THEM IN A LAB ENVIRONMENT. IF YOU ARE INTERESTED IN TESTING A UNIT, I WOULD REFERENCE ASHRAE DATA AND COMPARE TO FIELD DATA (RUNNING CURRENT, PRESSURES, DELTA T FIGURES, ETC. LC

A school in Central CA.

Hayward.com has owner's manuals available for download. It's about 30 pages long so make sure you have enough paper. I downloaded mine 3/09, should still be available.

It works this way. Even if you could set the thermostat at 200 it will not heat the water any quicker. It sounds as if you have an undersized heater. A larger heater will heat the water faster if your system can upgrade to the larger size heater. Your house will not heat up any faster if you set the thermostat to maximum. It is the output capacity of the heater that determines how fast it will heat.

What dictates heater size is:

the size of the gas line.

the length of the gas line run from the meter to the heater.

the size of the meter.

how many GPM the pump is producing.

the GPM capacity of the filter.

the size of the plumbing in you pool ~ 1.5"; 2"; 3"

total gallons in the pool.

are among a few. Just common sense here......

k

A redundant gas valve has two or three valve operators physically in series but wired in parallel with one another. This built in saftey feature allows any operator (pilot or main) to block gas from getting to the main burner.

EX: standing pilot, intermittent pilot, and direct burner are classified as redundant gas valves.

that depends on the size and location of the pool

another clear conceptz is how green the pool is? and how many hours of pool cleanning will it take?

That depends on the size of the pool And what sort of system you intend to install.the conversion only involves fitting the element to the filtration system and the electronic controls then putting the required amount of salt in the pool.

You have a choice in the type of salt you use

1 sodium chloride or common salt you will find this the easiest to get hold of or

2 Magnesium and potassium chloride available from magnablu which are much better for you and good for your garden.

I suggest that you speak to a local pool professional about your options.

yes it can but everytime you want heat you have to put it on Emergency Heat..

Rule of thumb is 1.5 tons per 1000 square feet of home.

There is a product called Natural Chemistry for oil. Other companies make something simular.

ken

The solar fish works fine in my pool in the east end of long island. The fish leaks a small amount of alcohol on the surface of the pool which helps to maintain heat. The cost of each fish is approx. $25.00 and last about 2 months Although the solar fish do work fine they are best used where you will have people swimming a lot or where a traditional pool blanket will be impractical as they are far less efficient. When it comes to preventing chemical/water evaporation and heat loss, the liquid covers (fish/Heatsavr) reduce about 50% of the loss and a Solar blanket can reduce up to 90%.

Also the fish are more expensive, depending on your swimming season and size of your pool you can spend anywhere from to $100~$200+/year on fish/Liquid cover, which is often more than you would pay for a blanket that will last many years.

If you don't cover it its likely to turn into a mosquito farm. Your best bet may be to get a pool maintenance chap to keep an eye on it occasionally.

Is this heat pump approved by your local codes or that of NSPF for use in or around swimming pools? I think not. Not a good idea to mix water and electricity.

Yes you could, if you live in a very hot climate... heat pumps would only be able to heat water to spa temperature if the weather was very hot all the time. It works the reverse of an air conditioner, but relys on outside air to convert cold to hot water.

Heaters are usually plumbed in after the filter. The pool filter/pump is what circulates the heated water. Ans: The heater will not work or fire if the pump is not running.

The solar blanket is designed to retain thermal energy not to collect it. Covering the pool at night will help trap heat gain. I'm sure the colour is not important other than for looks.

The air in the bubbles of the cover is heated by the sun and in turn that heat energy is transfered to the pool water. You will note when first getting into a pool that has just had the cover removed that only the first two feet or so are actually heated. The continued circulation by the pump completes the cycle of moving that heated water and blending it with the cooler.

Of the ten to 15 degrees you gain in the day time -- you loose possibly 5 - 8 degrees overnight. The bubble cover does not retain heat well since the reverse happens at night cooling the water some.

k