anyone ever seen or used one of these?
seem like a good idea, been reading more and more horror stories, overheating, glass heaters breaking and letting in water.
this is the spec from a website.
Hydor
External Thermal Heaters
Completely safe.
No danger of damage if the equipment is left running
without water for a short period of time.
Patented heating element made with the exclusive PTC system. The traditional metal resistor coils have been replaced by a special polymer sheet,
silk-screened with heating ink.
Setting of temperature controlled by an electronic circuit with indicator light.
Connectors suitable for any flexible pipe of all external filters.
Perfect running whether in vertical or horizontal position.
seem like a good idea, been reading more and more horror stories, overheating, glass heaters breaking and letting in water.
this is the spec from a website.
Hydor
External Thermal Heaters
Completely safe.
No danger of damage if the equipment is left running
without water for a short period of time.
Patented heating element made with the exclusive PTC system. The traditional metal resistor coils have been replaced by a special polymer sheet,
silk-screened with heating ink.
Setting of temperature controlled by an electronic circuit with indicator light.
Connectors suitable for any flexible pipe of all external filters.
Perfect running whether in vertical or horizontal position.