Today’s gas & oil pool heaters still use copper heat exchangers. In pool water, copper slowly turns to powdery green copper chloride. Heat , chlorine and acid all make copper corrode faster. A number of pool dealers have reported that “normally” 10% of all fossil fuel heaters corrode and leak within 2-5 years, and a new heat exchanger costs about $350.00
Planned Obsolescence? - Maybe.
GAMBLING? - Definitely.
Although Pool Heat Pump's offer up to 80% savings in fuel cost and are generally much more reliable and safer than gas pool heaters, if a water heat exchanger gets a hole in it (usually due to corrosion) and pool water enters the sealed refrigeration system, THE ENTIRE HEAT PUMP IS RUINED!!
Heat Siphon is designed and built with a special heat exchanger to totally eliminate corrosion.
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.
SEE RESULTS - After 48 hours cupronickel lost 9% of its original weight and 304 & 316 stainless steels corroded even more severely.