heater element replacement ?

Hi, I have 1 open circuit heater element, but propose 2 replace both while the system is drained. Can i use generic 3kw elements of the correct dimensions, or do i have to use glenhill parts. if so why, as a matter of interest ? Are there any pitfalls i should watch out for ? Thanks for any info. Bob

Yes generic heaters will fit but they will make more noise than the correct parts. The Gledhill heaters are 'low-Watt-density' heaters i.e. they have much more surface area than a standard cheapy heater element.

Cheers, Mike