The Thermalec PHR heater is designed for use with swimming pools, spas and other similar installations. To prevent damage to the heater it must not be operated unless it is fully flooded with a sufficient flow of pool water. An interlock is fitted, ensuring that the heater cannot be operated unless the filter pump is running.
A temperature controller is fitted to allow control of the water temperature in the range 15 to 45°C. The maximum water temperature is limited to 52°C by a safety thermostat. The IP rating of the heater is IP21 and it should be installed in a weatherproof enclosure with good drainage.
The pool temperature will gradually rise if the heater has been sized according to our published sizing charts. Our Economy 7 charts are sized such that in early May (of an average year) an outdoor pool with a solar cover will reach the required temperature in about five nights. The actual time taken to reach temperature is determined by the ambient air and water temperatures and by the overall heat losses from the pool.
- Robust design
- Quiet operation
- Heavy duty titanium elements
- Design ensures cooler water from pump does not strike elements
- Cast iron body
- Drain valve for winterisation
- Stub flanges mean no heatsink required
- Flow direction can be reversed
- Removable top plate allows easy internal inspection