Coates Electric Pool Heaters

Commercial Applications Only
(Not Available for Residential Use)

Coates Electric Swimming Pool Heaters

These medium capacity swimming pool heaters have a built-in flow switch to allow operation at water flow rates of 20 gpm to 80 gpm and to prevent operation when there is no water flow. Other standard features include incolony heating elements, close differential thermostat, manual reset hi-limit, element and flow switch "on" lights and internal protective fusing in units over 48 amps.

When a pool is in frequent use, a heater to make up heat loss may be all that is needed. Use the following calculations to properly size the heater:

Swimming Pool Heater Sizing:

Surface Area of the Pool (sq. ft.) = length x width
Desired Pool Water Temperature: °F
Average Outdoor Air Temperature: during months in use
Temperature Differential: Different between air and pool temperatures during the coldest month of use (desired pool temp. minus average air temp.)
KW Required = Pool Surface Area x Temperature Differential x 12
3413
Assumes a heat loss of 12 BTU/hour per square foot per °F of temperature difference between pool and air. 1KW=3,413 BTU/hour

Spa Heater Sizing:

When the rate of recovery and the spa heat-up time are important, or when the spa is used frequently, use the following calculations.
Capacity of Spa In Gallons = Length x Width x Average Depth x 7.5 (gal./cu. ft.) -OR- Surface Area x Area Depth x 7.5 (gal./cu. ft.)
Desired Water Temperature Rise Per Hour: °F
KW Required = Gallon Capacity x 8.3 (lbs./gal.) x Temp. rise °F/hr
3413

Dimensions of Heaters:
12-18KW: 18 1/4" l x 10 1/8" w x 11 1/8" h
24-30KW: 24" l x 12" w x 13" h
36-57KW: 28" l x 16" w x 15" h

Item #60-072	Coates Heater - 12 KW, 240v, 1 Phase Full Load Amps: 51; Weight: 47 lbs.	$1,750.10
Item #60-073	Coates Heater - 12 KW, 240v, 3 Phase Full Load Amps: 30; Weight: 47 lbs.	$1,569.50
Item #60-272	Coates Heater - 12 KW, 208v, 3 Phase Full Load Amps: 34; Weight: 47 lbs.	$1,916.25
Item #60-282	Coates Heater - 12 KW, 208v, 1 Phase Full Load Amps: 58; Weight: 47 lbs.	$2,136.75
Item #60-382	Coates Heater - 12 KW, 480v, 3 Phase Full Load Amps: 15; Weight: 47 lbs.	$2,016.00
Item #60-084	Coates Heater - 15 KW, 240v, 1 Phase Full Load Amps: 64; Weight: 47 lbs.	$1,771.60
Item #60-094	Coates Heater - 15 KW, 240v, 3 Phase Full Load Amps: 37; Weight: 47 lbs.	$1,603.90
Item #60-273	Coates Heater - 15 KW, 208v, 3 Phase Full Load Amps: 42; Weight: 47 lbs.	$1,958.25
Item #60-283	Coates Heater - 15 KW, 208v, 1 Phase Full Load Amps: 73; Weight: 47 lbs.	$2,163.00
Item #60-383	Coates Heater - 15 KW, 480v, 3 Phase Full Load Amps: 19; Weight: 47 lbs.	$2,052.75
Item #60-074	Coates Heater - 18 KW, 240v, 1 Phase Full Load Amps: 77; Weight: 47 lbs.	$1,797.40
Item #60-075	Coates Heater - 18 KW, 240v, 3 Phase Full Load Amps: 45; Weight: 47 lbs.	$1,668.40
Item #60-274	Coates Heater - 18 KW, 208v, 3 Phase Full Load Amps: 50; Weight: 47 lbs.	$2,194.50
Item #60-284	Coates Heater - 18 KW, 208v, 1 Phase Full Load Amps: 87; Weight: 47 lbs.	$2,194.50
Item #60-384	Coates Heater - 18 KW, 480v, 3 Phase Full Load Amps: 22; Weight: 47 lbs.	$2,068.50
Item #60-080	Coates Heater - 24 KW, 240v, 1 Phase Full Load Amps: 102; Weight: 68 lbs.	$2,253.20
Item #60-081	Coates Heater - 24 KW, 240v, 3 Phase Full Load Amps: 59; Weight: 68 lbs.	$2,132.80
Item #60-275	Coates Heater - 24 KW, 208v, 3 Phase Full Load Amps: 67; Weight: 68 lbs.	$2,132.80
Item #60-285	Coates Heater - 24 KW, 208v, 1 Phase Full Load Amps: 116; Weight: 68 lbs.	$2,751.00
Item #60-385	Coates Heater - 24 KW, 480v, 3 Phase Full Load Amps: 29; Weight: 68 lbs.	$2,367.75
Item #60-085	Coates Heater - 30 KW, 240v, 1 Phase Full Load Amps: 128; Weight: 68 lbs.	$2,291.90
Item #60-095	Coates Heater - 30 KW, 240v, 3 Phase Full Load Amps: 74; Weight: 68 lbs.	$2,184.40
Item #60-276	Coates Heater - 30 KW, 208v, 3 Phase Full Load Amps: 84; Weight: 68 lbs.	$2,667.00
Item #60-286	Coates Heater - 30 KW, 208v, 1 Phase Full Load Amps: 145; Weight: 68 lbs.	$2,798.25
Item #60-386	Coates Heater - 30 KW, 480v, 3 Phase Full Load Amps: 37; Weight: 68 lbs.	$2,409.75
Item #60-076	Coates Heater - 36 KW, 240v, 1 Phase Full Load Amps: 153; Weight: 100 lbs.	$3,005.70
Item #60-077	Coates Heater - 36 KW, 240v, 3 Phase Full Load Amps: 89; Weight: 100 lbs.	$2,713.30
Item #60-277	Coates Heater - 36 KW, 208v, 3 Phase Full Load Amps: 101; Weight: 100 lbs.	$3,312.75
Item #60-287	Coates Heater - 36 KW, 208v, 1 Phase Full Load Amps: 174; Weight: 100 lbs.	$3,669.75
Item #60-387	Coates Heater - 36 KW, 480v, 3 Phase Full Load Amps: 44; Weight: 100 lbs.	$2,782.50
Item #60-082	Coates Heater - 45 KW, 240v, 1 Phase Full Load Amps: 191; Weight: 100 lbs.	$3,087.40
Item #60-083	Coates Heater - 45 KW, 240v, 3 Phase Full Load Amps: 111; Weight: 100 lbs.	$2,756.30
Item #60-278	Coates Heater - 45 KW, 208v, 3 Phase Full Load Amps: 126; Weight: 100 lbs.	$3,365.25
Item #60-288	Coates Heater - 45 KW, 208v, 1 Phase Full Load Amps: 217; Weight: 100 lbs.	$3,769.50
Item #60-388	Coates Heater - 45 KW, 480v, 3 Phase Full Load Amps: 55; Weight: 100 lbs.	$3,113.25
Item #60-078	Coates Heater - 54 KW, 240v, 1 Phase Full Load Amps: 225; Weight: 100 lbs.	$3,435.70
Item #60-079	Coates Heater - 54 KW, 240v, 3 Phase Full Load Amps: 132; Weight: 100 lbs.	$3,177.70
Item #60-279	Coates Heater - 54 KW, 208v, 3 Phase Full Load Amps: 150; Weight: 100 lbs.	$3,837.75
Item #60-289	Coates Heater - 54 KW, 480v, 1 Phase Full Load Amps: 260; Weight: 100 lbs.	$4,194.75
Item #60-389	Coates Heater - 54 KW, 480v, 3 Phase Full Load Amps: 65; Weight: 100 lbs.	$3,375.75
Item #60-086	Coates Heater - 57 KW, 240v, 1 Phase Full Load Amps: 238; Weight: 100 lbs.	$3,500.20
Item #60-096	Coates Heater - 57 KW, 240v, 3 Phase Full Load Amps: 137; Weight: 100 lbs.	$3,233.60
Item #60-280	Coates Heater - 57 KW, 208v, 3 Phase Full Load Amps: 158; Weight: 100 lbs.	$3,895.50
Item #60-290	Coates Heater - 57 KW, 208v, 1 Phase Full Load Amps: 275; Weight: 100 lbs.	$4,273.50
Item #60-390	Coates Heater - 57 KW, 480v, 3 Phase Full Load Amps: 69; Weight: 100 lbs.	$3,475.50