Pentair High Performance Heater manual Pool Sizing, Spa Sizing

MasterTemp’s easy-to-read controls make system operation and monitoring simple. Pool and spa temperatures can be pre-set and controlled with the push of a button. A digital display indicates the water temperature, and five LED lights give you system status and let you know if the heater needs service.

Easy to install or retrofit in even the tightest space — models from 200M to 400M BTUs — all measure 21L x 21W x 28H

Rotating digital display means more installation options and easier access to view operating information

Rustproof, tough composite exterior for long life

Available in natural gas and propane models.

Pool Sizing*

°F			Heater Size				Heater Size
Temperature	Model		Model	Model	Model	Model	Model	Model	Model
Change/	200		250/250HD	300	400/400HD	200	250/250HD	300	400/400HD
24 Hrs.		Pool Capacity in Gallons				Pool Surface Area in Sq. Ft. at 5.5' Depth
5	97,383		121,729	146,075	194,766	2,364	2,955	3,546	4,727
10	48,691		60,864	73,037	97,383	1,182	1,478	1,773	2,364
15	32,461		40,576	48,692	64,922	788	985	1,182	1,576
20	24,346		30,433	36,519	48,691	591	739	887	1,182
25	19,477		24,346	29,216	38,953	473	591	710	945
30	16,230		20,288	24,345	32,461	394	493	591	788
35	13,912		17,390	20,868	27,824	338	423	507	675
40	12,173		15,216	18,260	24,346	295	369	443	591

Spa Sizing*

Spa Volume (Gallons)

Model 200 300 400 500 600 700 800 900 1,000

Minutes for 30°F Temperature Rise (Heater Input in 1000 BTU/HR)

200	18.0	27.0	35.0	44.0	53.0	62.0	71.0	80.0	89.0
250/250HD	15.8	23.5	30.8	38.5	46.5	54.3	62.0	70.0	77.8
300	13.5	20.0	26.5	33.0	40.0	46.5	53.0	60.0	66.5
400/400HD	9.0	13.0	18.0	22.0	27.0	31.0	35.0	40.0	44.0

Note: The chart is based on a 30°F (55.6°C) temperature rise, discounting losses and only based on heat required to raise temperature in minutes. Two-year limited warranty. See warranty for details.

*ASME models available. See your Pentair Water Pool and Spa representative for details.