Raypak 1505, 2005 Xtreme Pumping, Cold Water Run System, 000,000 $26,243 $22,039 $20,712 $16,898

Xtreme Pumping

	25 meters X 25 meters X 1-1/2 meters deep
		Annual Fuel Usage
BTUH
		Efficiencies
	68%	78%	82%		97%
2,000,000	$26,243	$22,039	$20,712			$16,898
	Using one 2,000,000 BTUH Heater
	50 meters X 25 meters X 2 meters deep
		Annual Fuel Usage
BTUH		Efficiencies
	68%	78%	82%	97%
4,000,000	$80,653	$66,424	$62,047			$49,756

Using two 2,000,000 BTUH Heater

The annual fuel usage is based on maintaining an indoor swimming pool at 80ºF for 6 months of the year and using a fuel cost of $1.00 per therm.

How to use the table below:

1.Select the desired temperature of the pool water.

2.Determine the mean (average) temperature of the month in which the pool will be used.

3.Subtract the mean temperature from the desired swimming temperature. The difference is the temperature rise.

4.Calculate the surface area of the pool in square feet.

5.Under the column headed by the temperature rise, determined in Step 3, find the number closest to, but not less than, the pool surface area from Step 4. The left-hand column will give you the correct model heater.

Sizing Formula

BTUH INPUT REQUIRED = (Pool Surface Area square feet) X (Temperature Rise) X (15) This formula is based upon a 1º to 1-1/4º F temperature rise per hour and an average 3-1/2 MPH wind velocity.

Where high-wind conditions exist, select one size larger than determined by the formula.

Rapid Heating

For 1-1/2ºF rise per hour: Increase BTUH input by 50%.

For 2ºF rise per hour: Increase BTUH input by 100%.

Always select a heater equal to or larger than the requirement. Over-sizing generally reduces fuel costs.

Cold Water Run System

The XTherm comes standard with a state-of- the-art Cold Water Run system factory mounted and plumbed. Raypak’s Cold Water Run system provides constant protection against condensation in the primary heat exchanger. The system utilizes a variable speed pump to inject just the right amount of water from the main system loop into the heater to maintain the optimum inlet temperature. This allows the full capacity of the heater to be utilized to meet the system load, while at the same time continuously maintaining the optimum inlet water temperature to prevent condensation in the primary heat exchanger. All of this keeps the condensate were it belongs, in the stainless steel secondary heat exchanger.

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