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Heat Siphon Electric Pool Heat Pumps


Designed for maximum protection against chlorine, bromine, and other corrosive pool chemicals. Heat Siphon units are backed by a Lifetime Factory Warranty on its titanium heat exchanger, and 5 years on its compressor. A Heat Siphon heat pump will effortlessly raise your pools temperature into the 80-90 degree range, and/or your spa to 104 degrees.

In addition to heating the water, the swimming season can be extended in cooler climates by as much as 50 percent, plus a HEAT SIPHON unit performs well year round in warmer geographic locations.

HEAT SIPHON units require little to no maintenance, and typically last 7 to 10 years.


Temperature Control – Easy-to-program controls offer simple, straight forward mechanical operation of unit.

Cabinet – Maintenance free, non-metal construction.

Digital Controls – Sophisticated but simple 2 button digital Control. Digital models have the HEAT SIPHON Digital Player Controller built-in offering many additional features and options, a more sophisticated problem detection system, a 4 digit LED display and 4 discrete lights to provide constant status feedback.

Pool Spa Combo – Dual Thermostat lets you set pool & spa temperature separately and simply select either one

Automation System Ready – Digital Player has EC MODE (external control) screw down terminals built in to allow remote ON/OFF switching via hard-wiring to all 3rd party pool/spa controllers

Wireless Ready – digital player control is ready for plug-in digital passport (add on) provides a wireless gateway to the HEAT SIPHON digital football pool spa control system
Digital Display – shows water temperature and error codes while status LED’s show current operation modes

Titanium Heat Exchanger – Comes equipped with a 100% pure titanium heat exchanger guaranteed corrosion free for life of unit.

The pure titanium heat exchanger tube material was selected based on corrosion tests at 100 F with a pH of 4.75 and chlorine levels 5000 parts per million (1000 times greater than normal pool water) Although this is a severe test, it simulates realistic possible conditions such as chlorine tablets in skimmers and out of balance pool water. Cupronickel, 304 & 316 stainless steels. and other alloys were tested including Titanium.

*The Manufacturer will replace your heat siphon FREE if your heat exchanger ever corrodes. As long as you own it.

Scroll Compressor – Silent scroll technology uses minimal energy to achieve maximum output. Combined with low speed fan, lower RPM’s use less energy and operate at lower sound and vibration levels making HEAT SIPHON heat pumps super quiet.

Digital or Analog Control Board – Simple dependable no frills single knob 24 volt controls are used on all C Series or Analog models, while the Z Series or Digital models have a sophisticated feature set, LED display including status and water temperature and are wireless ready.

If you want to spend more up front to get an even lower electric bill, then the The Z-Series option may be for you.

DIGITAL Control Board – The digital display – shows water temperature, set-point, error codes and alert messages while 4 status led’s show current operation modes: Green led for pool blinks while heating and is solid on when the pool is at temperature. Yellow led for spa works the same. Red led blinks for alert or error codes and stays on if service is required. Blue led is on if the player’s built in pump feature for off cycle heating is active or shows wireless communication is occurring.

Dual thermostat for pool spa combos – lets you set pool & spa temperature separately and simply select either one by changing the mode.

Automation system ready – digital player has an ec mode (external control) with screw down terminals built in to allow remote on/off switching via hard-wiring to all 3rd party pool/spa controllers.

Wireless ready – digital player control accepts the plug-in digital passport (add on) which provides a wireless gateway to the HEAT SIPHON digital football pool spa control system.

Digital models have three modes – POOL, SPA and Patent Pending AUTO-PIC:

POOL – Heats to the Pool set-point
SPA – Heats to the Spa set-point
AUTO-PIC – Automatically picks the right set-point (pool or spa) all by itself with no wires or other controllers or any connections to anything. You just turn your valves (manually or motorized) to circulate pool or spa water through your Heat Siphon and AUTO-PIC DOES THE REST. It “learns” the heat-up rates of the pool (slow) and spa (faster) and based on the rate it picks the proper set-point.

ANALOG Control Board – Analog models are lower cost & have a single knob, simple 24 volt series control circuit and mechanical thermostat. Many of our customers prefer the simple no nonsense design.

Pool Spa Combo – analog single thermostat requires manual setting to pool or spa set-point

Automation system hookup – simple series analog 24 volt control circuit allows easy hard-wire hookup to an external controller. Just turn the thermostat up all the way to 10 and let the controller turn it on/off.

Upgrade path – digital player retrofit kit as an add-on are available to change your analog HEAT SIPHON to digital if you later decide to go wireless and will provide all player features to analog unit.

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