The PHOENIX guarantees‘ the stack temperature not to exceed the oil temperature by more than 100 degrees F. at high fire.
The PHOENIX has perfected and improved the double-helical coil unit design and no economizer is needed.
All PHOENIX PX model heaters are built according to Section VIII of the ASME Code with a minimum rupture pressure of 350 psi.
All PX model heaters come with ASME stamping and a National Board registration. Other oil heaters on the market are not ASME stamped, some manufacturers do not even make ASME code heaters.
