Need to know the surface square footage. Length X width only. Then, need to know the size and length of gas line run from the meter to the equipment pad; then the size in sq ft of filter, pump horse power, size of Plumbing. Is there a heater already in place?
Ken
How large of a heater do I need?
The model numbers indicate the BTU H400 Is 400,000 BTU
* Recommended H-Series Heaters for Swimming Pools.
Heater Model Pool Surface Area
H400 1200
H350 1050
H300 900
H250 750
H200 600
H150 450
* Determine the pool surface area by multiplying the length of the pool in feet by the width. Use the chart above to determine the heater size for your pool.
* A note about heater size: A pool heater should heat the pool, on average, one degree an hour. Once the heater is sized to the pool, stepping up one or two sizes will decrease the time to heat.
With that size pool - probably close to 18 x 36' = 640sq. ft. the recommeddation would be to use the 400 btu heater. Going to the larger heater size, if everything permits ( gas line size and run length) you will actually be using less gas to heat the pool that you would if you used the 200 or 250 heaters above. The eventual payback would be realized in you overall gas bill. So , the chart above is only for reference.
At a minimum you would need a 400K btu gas heater. This pool is larger than a 20 x 40' pool or 800 sq. ft. Many things dictate the size or sizing of a pool heater such as the surface area of the pool, the size of the gas line from the meter to the heater, the distance of the run from the meter to the heater, the size or capacity of the gas meter, etc. Proper sizing is a must if your heater is to run at optimum standards.
It takes one Btu to raise one pound of water one degree based on the density of the water. Water weighs approximately 8.345 pounds per gallon around pool temperatures. So, take the gallons of water in the pool, multiply that by 8.345 to get the weight of the water and multiply that for every degree you wish to raise the pool temperature. If you are sizing a fossil fuel heater to the task, you need to consider the efficiency of the unit. Input Btus per hour compared to output Btu's per hour vary greatly. If, for example, your heat plant is only 50% efficient, it will take twice as many input Btus than the weight of the water would require. tom
It depends on where the pool is located, if a blanket on the water is used at night, the months that the pool is open etc. Most of the time we like to use heat pumps over 110,000 BTU's or gas heater at 400,000 BTU's.
I
.200000
Usually about an hour.
Around 3 hours
130000 btu
Do you have a pool heater? The oil could be "white oil," a refined mineral oil. Indicates a problem with the heat exchanger. Your heater doesn't need to be running for this problem to occur.
GEO - thermal system.
It all depends on how much the tank holds and the wattage of your heater I like to have 10 wattage for ever gallon so if you hVe a ten gallon tan you need a 100 watt heater also the temperature of you want will make a deference normally my 20 gallon tank can go from 46F to about 77 F in two hours
{Sigh} I hate English units. A BTU is defined as the amount of heat required to raise the temperature of 1 lb of water by 1 deg F. The basic relation is Q = mcdT Heat = mass * heat capacity * change in temperature. A gallon of water weighs about 8 lb, so you're talking about 500,000 gal * 8 lb/gal = 4 million pounds. The constant c for water, by the definition given above is 1 Btu/lb-deg F. So Q = 4 million pounds * 1 Btu/lb-degF * 32 deg F = 128 million BTU Note: 500,000 gal should be changed to 1250 gal or 3.2 million BTU?
no
Heater produsces - heat recovery finds heat and reuses it
I would not use a heater of less than 100 watts for anything. The price difference is minimal between 50 watts and 300 watts. Basically it is only the comparative physical size of the tank and the heater that decides how 'big' a heater should be. My usual surmise is "bigger is better" because it will not have to work as hard or as long as a smaller wattage one.
Anywhere from 6- 35 hours. Lol. No it should take around 2 hours
The heater in your car uses waste heat from the engine to heat the car. When the engine is not running there is no heat to distribute.